Saturday, December 21, 2013

Of Hippos and Kwerekweres


I have never been good at satire. Whether it be reading or writing and I am not going to start now. It took much convincing to be sure that Animal Farm was based on actual historical events. And more convincing still on the fact that these so called events did not in fact involve sentient livestock. And even more convincing not to over compare the story with the current political platform of our beautiful country. All animals are equal, but some are more prominent than others.

Anyway, in my failed attempt at satire I thought I should contrast the plight of hippopotami with foreign tuck-shop owners. There is a place in Zululand where the view of the dawn horizon is bejeweled with a great necklace of rolling hills on the one side and plush plains that adorn its occupants with sheer awe ever single day of their existence.

Okay, I made up that last part. As I was saying, this is a tranquil place still nearly untouched by the scourge of urbanization. I mean, who needs running water anyway? It is situated near a wildlife reserve and the people of this place couldn't be any more in touch with Mother Nature. Fences are overrated anyways.

They couldn't be happier fetching water like the people of old. Nothing says you're alive more than the excruciating pain of a full 25 litre bucket over your head with the liquid rocking your neck in obtuse angles. Ah, yes, and the place they get to fetch the water makes one truly glad to be alive. The river/stream thing they get the water from (and do their laundry) is also home to the occasional man-eating crocodile and sometimes if one is lucky, you can spot a hippo some distance away.

Of course these waters are said to be "hippo infested". Maybe I shouldn't have put that in quotation marks as that would imply some sort of irony or a subliminal message that might imply that these humans are the invaders of these waters and I do not intend doing that. Dang it! Oh well, anyway, in their attempts at getting along with these majestic herbivores, the humans have decided to stay away from them.

Well, the few testosterone-intoxicated youths who have tested the standing-between-a-hippo-and-its-river theory didn't quite get the memo. God bless their inquisitive souls. This has undoubtedly dealt a great injury on the hippos' popularity polls in this community as of course these deaths are due to the hippos' vindictive and homicidal nature. Fowl creatures!

Now, if one of these mammals were to find themselves grazing a little too close to a paranoid homo sapiens, as is occasional, it would take some bad-mouthing from this individual to these other humans.

"They don't belong here. This is our land. You give them a little room to graze on and they'll kill you in your sleep."

"One of them looked me the wrong way just the other day. These things deserve to die!"

Peculiar creatures these ape men are. Now, these peoples gather around to hunt down and slaughter this animal on account of it being a (potential) danger the community.

As it turns out they find and loot, I mean, eat this animal in great merriment. Funny how so many people get their day off all at the same time. If I didn't know better I'd say they are lazy and unemployed people who are jealous of these creatures living their lives working hard to live for another day and these lazy asses find pleasure in free food, the meat which of course is at the expense of this innocent animal. But I know better.

And the people of this beautiful place live happily ever after...or until another hippopotamus makes a wrong turn. Anyway, I just went commando on this one (in more ways than one), so any references with the plight of certain peoples is purely coincidental. I just hope I'm not the next one to be stoned to death on account of a slightly weird accent

Wednesday, December 4, 2013

Ay cha, Black People!

Just so we're clear and on the same page. I am as black as they come. My parents experienced the struggle at it's nastiest, when blacks turned to each other to fight among themselves in the early 90's. I was too young to understand at the time, but I hear stories of how Esikhawini was a focal point of some of the violence and unrest.

My identity as an African spans more than my complexion, language, DNA or the place I was born, and the land of my forefathers. I am told, by my mother, though admittedly reluctantly, that she, therefore I, have Khoi/San blood in me. It is true that every human being on earth shares their genetic code with these amazing people, though for me, I am told is somewhat closer.

I have a brother/family friend who has Indian ancestry. My other siblings and I sometimes horse around when he exhibits somewhat 'Indian' behavior. What makes him an African? What makes any of us Africans? Where does our identity lie? The truth is, at the time I first drafted this column, I had no idea what the word Africa means or who named this great continent.

All that said, I understand the legacy left by the Apartheid regime, which has since been defeated and removed from power. It cannot be avoided that residual results of this era still remain with us today. But, we are all born to die, yet our ideas seem to have less predictable lifespans. The ideals we choose to leave to our children have unquestionably great consequences to the future of any nation.

Now, what troubles me most is not so much the ideas that live on long after the elders die off, but the nature of the ideas that do survive. It saddens me to watch on the news incidents of the looting of local and foreign owned establishments particularly by my own people, the blacks. This has been such common occurrence that when black people see these things being done by their brethren, they-we comment saying 'abantu abamnyama!' (black people!).

This to me seems like a justification of the behavior exhibited by these unruly individuals, that it is okay just 'cause they're black. What is being an African? We are the ones destroying libraries, burning clinics, throwing sh1t and stopping our children from going to school. That's us. Black people. What does it mean to be an African?

Nelson Mandela had an ideal that tried to act against the division of Africans and sought an African conglomeration by Africans for Africa. He went to prison still having not achieved this. He saw how if we would all organize ourselves, we could become formidable, a force to be reckoned with and be able to stand against our oppressors. We failed to do so for many more years.

Yet here we are today, fighting against our new oppressors; ourselves. But maybe I am looking at it too gloomily, if that is a word. Or maybe I am pussy-footing around a myriad of much more serious issues. The gist of all this, I guess...I actually do not know what the purpose of this column is, but I think we should look at ourselves and try to fix the kinks where it does not look so good.

Don't get me wrong. I am not here to judge or scold. If I have come across as such, I apologize. We are black, so they call us. But who are we really? And are we happy about what we see?

Tuesday, October 29, 2013

Climate Change Deniers Eat This!

http://www.youtube.com/watch?v=HF9LNuH3IpU&feature=youtube_gdata_player

Monday, October 28, 2013

In my volatile opinion

A recent US study, conducted by a leading university research institute, has revealed a clear link between the mating rituals of blue monkeys and Caucasian elderly couples.

Whoa! What! Okay, let's just stop it right there. What has just happened (hopefully) is that I have used the little authority I have as an aspiring science writer and columnist to imprint an idea in your head which has the potential to evolve into an opinion, part of which, will define you and be your weapon in your next battle of the wits.

As the title of this column suggests, I have a very volatile opinion on just about everything. This is because of all the 'excessive' reading and viewing of National Geographic Channel that I subject my puny brain to. My opinion on any given topic, from The Big Bang Theory to World politics, changes as much as my exposure to new info continues.

Now, I am among the lucky few who let the availability of reliable information shape my opinion. There are some others who have stubborn tendencies that when their opinions are attacked, go into defense-mode and take these challenges personally, as gratuitous attacks on their person. God bless their poor souls. A great example being Young Earth Creationists who maintain the age of the universe is no more than 10 000 years despite the overwhelming evidence contradicting this notion.

Some people want to keep their opinions as they have made them part of their identity and in this way keep them through a misguided attempt at self-preservation. This, in my opinion can be very dangerous in cases where the person harboring this false opinion is in  an authoritative position in that his opinion can get viral and infect a whole community and in the worst cases put people's lives in danger.

Whilst that last statement may seem a bit dramatic, it begs that I paraphrase an example I made in a previous column. Remember the doctor who falsely stated a link between the MMR vaccine and autism in children? Well, as stated before, his legacy lingers on even today, as many parents in the UK and the States are reluctant to take their kids to be immunized. Many only find the flaw in their ways when their kids succumb to the preventable diseases the vaccine is meant to guard against.

As many false opinions are generated, this one originated from a qualified medical practitioner who wrote a scientific paper on his findings. And what's a layman to do when an expert says stuff like this? Advertisers use the same principles to market some products during those daytime infomercials.

Another notable example is the inclusion of climate change deniers in the US government. This may not seem like much but the policies that come from that country influence the rest of the world in terms of climate change. As it has already been shown, climate change is real and those who are in line to suffer most from it are those who contribute to it the least.

Our opinions on the world we live in influence the way we do things. Whether it might be deciding on the quickest route home or casting that all important vote, it is not hard to imagine how all these things can have lasting implications on the way we live. It is advisable that one takes all informational stimulus with a pinch of salt

If one should take away anything from this column, it is that you should not believe a word of it. That said, I hope you don't pin anything on me when you lose an argument over something I've said when you find out it isn't the truth. Oh, and by the way, that first statement is a pile of hogwash. I used it to make my point.

Post column: do not believe everything you read or see, except this statement.

Sunday, August 18, 2013

Trouble Sleeping?

Two of my close friends are suffering from insomnia and since
learrning of their predicaments, I've been doing a little reading on
the subject in an attempt to help them as promised.

Now, its very easy to find remedies for such 'ailments' on the world
wide web by simply connecting to Google. I could've just left them to
that, but then where's the fun in that? Anyway, there's a lot of folk
remedies whose unnamed authors swear by. So, this makes it rather
difficult to decide on ones that work. I decided to mention a few
favorites I found and those that are practical.

Some that stood out for me include "sleeping with your head facing
North" which tells me that your sleep pattern is somehow affected by
the magnetic field of the Earth (even though the remedy fails to
mention whether it's true or magnetic North), and this may require a
change in deco as soon as you figure out which way is North.

Another one which I liked says that you"mustn't use your bed for
anything other than sleep or sex". But the question remains, what can
MV and N (that's what I'll call my two friends) do regarding their
sittuations?

Well, it helps to know what kind of insomnia one has before attempting
to 'cure' it. There's acute (primary) and chronic (secondary)
insomnia. The former lasts less than three nights and the latter can
lasts for many more nights and can drag on for a couple of months.
Now, the acute kind is very easily manageable as it has causes such as
stress and tension caused by the loss of a loved one, losing a job,
anxiety for exam results (MV?) and various other related causes.

Anyway, the more serious kind, the chronic insomnia could be caused by
underlying mental and physical ailments such as (clinical) depression
and other illnesses. I suggest you consult a doc if you suspect you
have this kind.

Some medications can also interrupt one's sleeping pattern, of note is
treatment for high-blood pressure, and for asthma.

N said "I drug myself to sleep" and that this has been going on for
months now. Unless these drugs are issued by a qualified practitioner
having diagnosed you of chronic insomnia, and having given you these
for temporary use, then I must tell you that over-the-counter sleeping
drugs can be dangerous overtime and they eventually lose their
effectiveness.

Problems, problems, but this still keeps you up at night and you need
solutions. You could try a few simple acts that are said to improve
your sleep 'hygiene'. The great thing about them is that they make
perfect sense and they're easy to do!

They include: exercising three or four hours before your scheduled
bed-time, a little reading to tire yourself up in case you wake up in
the middle of the night, keeping the same bed-time and wake-up time,
drinking warm milk before bed (yup, it works!), having your supper an
hour before sleep (a light snack in bed also helps), listening to
relaxing music (not depressing) and for all those worriers out there
(ladies) try writing a to-do list as that may help tame the worry-wort
in you.

I really hope this helps, and if you should find that it doesn't, I
again emphasize consulting a specialist as that might reveal something
deeper...my biggest worry being clinical depression.

If push comes to shove, counting sheep still remains an option. Goodnight.

Tuesday, July 2, 2013

God and Science, the real story (FIXED EDITION)

Up to now, I have been trying very hard to avoid mixing my writing on
science with issues of God and religion. Nevertheless I get inundated
with false opinions regarding science and how it is at loggerheads
with the existence of God that this has got me thinking. Where do all
these ideas, these notions that believers in science are disbelievers
in god? I am of the opinion that these judgments are baseless and very
dangerously contagious in that they antagonize, in a sense, the
scientist as an automatic atheist. I must also say that atheism is not
a bad thing.

First of all, I am a scientist in training and a firm believer in the
existence of God. This does not, however, deprive me of an inquisitive
mind or the urge to question everything and everybody. In my naïve
years, I used to be amazed by scientists, especially astronomers, who
openly believed in a god. I remember asking myself how this could be.
I mean, does not the scientific evidence contradict any notion of the
supernatural, or the existence of a higher being, and so bury God with
all the other fairytales?

I have learnt, personally, that there is so muchmore to it than that.
Personally, I started liking science when I saw how beautiful the
world, nature, the biosphere, planet earth and the rest of the
universe was. I was helplessly drawn into it by a childish curiosity
(my biggest asset) and my search was rewarded by absolute bewilderment
as I held a book on Time and Space. The truth is, most of us start off
with mere interest and curiosity, and then comes the questions from
the "wise ones". A cousin of mine has asked me on many occasions since
she learned of my interest in astrophysics whether I am looking at the
stars to find God. She proceeds to jokingly show her disapproval on
this prospect citing it as a crime of faith and that I should have
faith in the big guy's existence.

My next-door neighbor has also asked me a similar question, but in her
case I always feel a genuine sense to know more. This was proven to me
when she invited me to her house to view something on the television
that she thought might interest me. Now, she is a retired nurse and I
could not help but wonder what she thought might interest me. When I
arrived, I saw a morning news show displaying images of the first
stage of the Square Kilometer Array –a joint scientific project
between South Africa and Australia- and some scientists, who were
heading up the project, discussing its significance in putting South
Africa on the global scientific platform. I ended up spending the
better half of an hour watching with her and explaining how important
the project is and expressing my gratitude for her having brought my
attention to the broadcast.

Now, I have always tried to separate God and Science, but it has come
to my realization that the two are actually inseparable. First to
answer the question of whether I am looking for God when I am looking
at the stars and whether I have come to any breakthrough in my
fruitless venture. Yes I have, I see God on every cloudless night when
I unstiff my neck to look up and appreciate the beauty of the stars
and the many other objects in the sky. I see God in the blogs that I
read that show me how stars are born in the wake of huge star deaths,
how vast the cosmos is, the incredible history of the Earth and I see
God even its prospective demise. Now, my kind of God may not be your
kind of God, and as I said, this is my opinion and seeing God in the
beauty of nature is what makes me happy.

Finally, although mathematics is not my most favorite of subjects (far
from it) I do appreciate its indispensible importance and in it,
again, I see God in the perfection of prime numbers and the mysterious
intrigue in the Fibonacci Sequence. I must admit that any notion of
God the reader has is unlikely to be affected by my one column, I do
however hope that it will prompt one to employ an open mind and to
question everything and everybody except your mother…never ever
question your mom.

Sunday, May 26, 2013

Shedding Light on Dark Matter

Sometime in the 17 th century, a man was supposedly hit on the head by an apple, ripe, that had detached itself from the tree he had been
sitting under. This story should be familiar to any self-respecting
physics student–myself included-. How true this story is, or the less
painful version of him merely observing the very hard fruit falling to
the ground, is subject of little importance. But the events that
followed have affected every aspect of how we view the world today.
We see stuff fall to the ground all the time, it really is no biggy. I
mean, it's just a fact of life; things will fall. In that fateful
century, however, in an unplanned vacation induced by an epidemic of
the plague that ravaged parts of Europe, a very smart scholar used
this time very wisely and out of it came the answer to the most
unasked question of all time: why does stuff fall down? Newton, today
known to many as the greatest thinker of all time, pondered this
question (in more formal English).
After countless hours he came up with a very nifty equation, stating
how gravity is a force that pulls stuff together, and how the strength
of this force decreases by a square of the separation of these two
objects. He also explained the motion of the planets and that was
that. Well, it's all good until you ask the question: what is gravity?
Of course, it is a force that pulls objects together, thus creating
the effect of the less massive one falling toward the one with greater
mass.
The trouble with this answer is that it just doesn't explain what
gravity is, it just explains what is does. Sort of like explaining
wind with the bending of trees. Einstein came to the rescue with his
famous theory of general relativity which explained how massive
objects distort the space-time around them, thus explaining the motion
of objects in such gravitational fields. He proposed another way of
looking at this force and in this way solved a long standing riddle of
the peculiar orbit of Mercury.
It seems there is an adversary of this universal force, a force that
does the complete opposite of what we've known gravity to do; it
pushes things apart. After the expansion of the universe was
discovered, an even greater anomaly was observed. The expansion of the
universe was expected to slow down but the discovery that this
expansion is actually accelerating, caught those who observed it by so
much surprise that at first they thought they'd made a mistake
somehow.
Observations have shown that there's stuff literally appearing out of
empty space and pushing galaxies apart. It's an energy that pushes
incredible masses apart; we literally have no clue what it is, despite
studying it for over a decade. It's so illusive and so little is known
about it, save its effects, that it has been termed: Dark Energy. Not
related to the enigma of Dark Matter, its sexy adjective reminds us
how little we know about it.
In a recent scientific endeavor, a very sensitive satellite was used
to scan through the sky in all directions, in search for what is
essentially the afterglow of the Big Bang. The result was a dirty
looking rugby ball of a map that is the holy grail of cosmology known
as the Cosmic Microwave Background. Now, it gave many results of great
importance that as I am typing this I am contemplating a draft of the
column solely based on these topics.
Now, one part of the result shows that dark energy makes up 68.3% of
the universe, leaving dark matter being 26.8% and normal visible
matter a mere 4.8%. I find it fascinating that this stuff, this force,
this energy we know so very little about makes a bulk of the universe.
This mystery of dark energy is just one of many that keep me curious
and reminds me of how much more there is to know out there. The
universe holds many more secrets than we thought, and the more we
know, the more we realize how little we do know. For every one
question we answer, many more questions appear.
Now is an excellent and very exciting time to be an astronomer, and a
South African one at that. Also, being a science journalist and
enthusiast puts one at the forefront of what projects such as the SKA
project will produce regarding this anomaly and many more mysteries it
will answer, and many, many more it will create!
And by 'we', I am referring to all those curious and have insatiable
appetites to know more.

Friday, May 24, 2013

Isilimela

I would like to take this opportunity for which I am very grateful for
to honor a man whom I have only met in his works. Anthony Ferrel is
the author of the popular astronomy book: Skywatching,which comes
highly recommended for professionals and enthusiastsalike. I found the
book during an unguided exploration of the local library, in my very
younger years when I was stilltrying to find my identity, so to speak,
in the kind of booksI like.
This book is the very root of my being today somewhat of avoracious
reader and knowledge seeker of sorts. So, many years later I was very
lucky to meet a former student of his, whom, though not surprisingly,
spoke very highly of him. I remember vividly how I was still
'charging', soaking up the morning sun on a stoep in the very crisp
winter morning at the South African AstronomicalObservatory in Cape
Town, when this former student informed me that the great professor
had died a couple of years back.
Very few people get to meet their favorite authors, and I'msure that
those who do treasure such moments. I hadn't read the book in a
longtime but knew its contents, page by beautiful page by heart, and
just meeting one ofhis students who knew him personally was the
closest I had to meeting him. I imagined how he might have been in
thevery spot I was standing when I visited the observatory in
Sutherland when one evening, as he so vividly describes in the
introduction in his book, he saw the few constellations that had
already started appearing in that twilight aftersunset.
I even remember how he described each of them they that he saw as if
they were people and drew for me a picture of the sky that I'd never
seen. It was like discovering something that had always been there,
right over my head, a canvas in which a higher being may have reserved
to show His best works. The illustrations and simple English he used
enthralled me and to this day, I try to follow suit as best I can. One
of the topics he wrote about revealed to me something I never thought
was possible, that Africans are astronomers in their own right, or at
least used to be.
I have always had this idea that looking up at the stars was a western
thing, and many of my peers do away with such stupidity. Anthony, in
his book, opened my eyes in many respects. This particular page has
this Nguniword that caught my then very curious eye: Isilimela, and he
wrote about it somewhat along these lines. This term was and still is
an essential facet in the Xhosa calendar. It marks the beginning of
the agricultural season and the time in which initiates 'go to the
mountain' as they say.
It begins when a group of stars known as the Pleiades cluster in the
Taurus constellation reappears in an eastern twilight. This also
brings light, to the people, who I consider the earliest (African)
astronomers who were entrusted with spotting the reappearance of this
cluster, this Isilimela which was then very important in that it
marked the best time in which the season could begin. So important was
this task that the first person to spot itwas rewarded with the
slaughtering of a cow with his name held in great esteem.
I find myself thinking how this vital skill was passed down orally,
with no books with drawings and beautiful pictures to spark the
imagination, but poetic and mythical descriptions that would
flamboyantly paint the picture in the student's mind. Iimagine a crisp
night, an old man, young boy on his lap, sitting on a rock in the
twilightas the cluster slowly appears and the wise one pointing out
the twinkling beauty.
In this, I see a cosmic connection, and an African oneat that. The
night sky is beautiful, and finding out whatmakes such beauty, is part
of the adventure of being an aspiring astronomer. It is my ancestral
right. I am what I am,and are to be, because of books like Antony
Ferrel's. And in him, I am eternally grateful.

Saturday, May 18, 2013

The Truth About Immune Boosters

My very loving mother has advised me against writing, let alone publishing, this very innocent column in fear of some kind of retaliation from the local syndicate whose livelihood I'm about to
attack.

I ergo write this under duress, and if it so happens that the gentle reader is reading this from the musky smelling pages of a newspaper, do not forget the great lengths and the many nights of contemplating the risks involved in order to bring you this piece of cut-throat journalism! No fear, no favor. From the time of print, I will be probably watching my back (I need a periscope), and avoiding open drinks (as I should always), so as to live to write another column that might cause me injury. Oh the humanity!
Here we go.

As I sat down to write this, I dreaded the many hours of research I would have to put in in order to bring you this exclusive. Thank God for Google and other smartasses like me, reports of these
quacks have been all over the internet for many years now. Just a few minutes out of your lunch hour to Google "immune booster hoax" will give you more than enough reasons to stop buying these untested concoctions that are made of who-knows-what.

Like the authors of the New Testament, I myself have an agenda in writing a column on this
particular topic. I mean, I could have just written about the president's private parts
of his life (his house), how rich people can make the government look away (Guptagate) or how South Africa has collectively numbed itself against rape and domestic violence. But no! I wanted to write about something that's closeto my heart. I'm a scientist in training and a great enthusiast of the truth. So, when I see the truth being twisted, screwed, spat on, bottled and labeled to look like the truth; I get very angry and go hulk on your ass!

What gets my lymphocytes into a real fit is the blatant untruth presented by these dodgy looking companies who sell these so-called immune boosters. What does that even mean,'boosters'? The truth (which the reader can find on the net) is that the immune system of a healthy person is an evolutionary masterpiece that does not need to be improved, boosted or re-engineered. It is a very complex system that we vaguely understand, and how these concoctions claim to improve it, leaves me scratching my head as I slave over these medical textbooks and reputable websites.

What's the big deal? This stuff can't kill you, right? Well… not directly. For the first time, this column is about to become very opinionated, maybe even subjective, I dare say! Winter's coming, and
this muti is being advertised as protection against the coming flu season. The trouble with this is thats the average consumer, who is not exposed to the possibility of immunization through vaccination, might as well buy the much cheaper immune boosters that promise to prevent diseases I've never heard of and bring your long lost spouse back to you among other benefits.

Now, vaccines do not boost your immune system as such, but what they do is actually give your system a sort of a heads up of what's to come in the coming season. How it actually works is that they inject you with a weakened version of the virus (such as for measles) and the immune system reacts as if it is facing the real deal, and the result of this is that the immune system is ready next time that strain of
the virus attacks.

That's how one is protected. There was a scandal in Europe in 1998 in which a scientist, Andrew Wakefield, claimed to had found a link between the MMR vaccine and the development of autism in children. Parents, on the authority of this scientist, avoided taking their kids to be vaccinated and this in turn put many lives at great risk.

The results were later rubbished as their instigator was later found to be extremely biased (he was developing an alternative vaccine) and he had altered his results. The consequences of his actions have are still prevalent even today with parents who still will not vaccinate their children based on this blatant untruth. The media was also criticized for its role in the irresponsible reporting and having not covered the rubbishing of the results.

I hope it'll never come to this. But what I have seen are these adverts that use scientific terms and facts in saying why the immune system is important and why pathogens are so dangerous. They then proceed to tell you how this sugar water they call a miracle is going to help you protect yourself from this flu season. So how can a layman stay unconvinced after someone who knows science says it is?

I am simply against the twisting of the truth especially when people's lives are at stake. I don't like what I'm seeing. The remnants of a denialist government who had an uncanny fetish for beet-root.

Wednesday, April 17, 2013

Why bother with astronomy? (Part 2)

The world view we have today is astonishing, we see how little we
know, as the universe is said to be made up of stuff, most of which we
cannot see or detect directly. This stuff is all over the universe and
makes up the bulk of it, 84%. That just leaves us with 24% of stuff
that we see and can study
thoroughly. The same stuff that stars billions of light years away are
made of, is the same stuff that you and everything you can see around
you is made of, we call it (rather unromantically) visible matter, and
the other stuff: Dark Matter.
There is something else, perhaps even more weird than the dark stuff.
Though not related to dark matter it is called dark energy. And no, it
is not a force of evil (at least we think it isn't), just a force that
acts
against gravity, and by the looks of it, it looks like its winning as
it is accelerating the expansion of the universe set off by the big
bang some 14 billion years ago. This is as weird as throwing a ball in
the air, expecting it to fall back down as it reaches its maximum
height it instead accelerates upward. That shouldn't happen, right?
Well this is the perfect
analogy given by the astrophysicist, Katie Mack, on her blog.
If history is anything to go by, this world view will also not last
forever, we will find out what this stuff and energy really is, perhaps
discover new physical laws and get ever closer to the truth of where
we come from and where we might end up.

For now we rest easy know the edge of the world is the stuff of
legend...or is it?

Why bother with astronomy?

Astronomy has too broad a definition to put in one line. But basically it is the study of the universe as a whole.
Yes but, what is the universe?
Let me give a very short history lesson so simple and quick that the reader will not get bored too quickly. About 14 billion years ago…okay, maybe that's too far back, more on that later. The view of the world has undoubtedly changed so many times that this subject alone is worth quite the mention. The ancients had simple world views very much connected to each culture's creation story. There's far too many to mention but before mentioning one that a lot of us are familiar with in general history, I find great intrigue in how the Sumerians saw the world.
The Sumerian creation story also takes into account the occurrence of all the continents on one face of the earth. It starts off with two bodies in the solar system; two planets violently crashing into each other. The remnants of the two planets thus created the huge oceanic floor that occupies one side of the earth and the continents on the other side that survived the impact of the crash and the remaining debris is how the moon came to be. Amazingly, this fact about the moon is a recent discovery in conventional astronomy. What's amazing about this story is the time in which it was documented; thousands of years before the planets were found to be other worlds, and worlds orbiting the sun for that matter.
One cannot look down upon the world view of the ancients as one is not surprised at the number of individuals who, today still, have remnants of it embedded in their notion of the world we live in. We know today that the sun does not come up or set, yet this notion still has a strong footing in the English language. We know today that the universe is not perfect the way we thought it was: a series of concentric spheres in which the earth is at the center (geocentric). We know today that the earth is not flat and many other things that seem obvious to our generation that were not so obvious to our ancestors a mere century ago.
Many of the scientific and paradigm advances of mankind dawn from individuals who looked further than the accepted world views of their time and thus pushed ever further the limits of the universe, and so the limits of our psyche, our imagination. The irony is that, for some, what pushed them was the desire to prove the then current world views, and you can imagine just how hazy the results drove them.
Through true dedication and hard work they worked at finding out the truth and in this way, the sun upgraded from a mere orb in the celestial sphere (geocentric view) to being at the center of the universe itself (heliocentric view) to it being just another sun in a myriad of hundreds of billions in our Milky way galaxy in which further observation showed billions of other 'island universes', galaxies that make the fabric of the large scale universe, a cosmic web so beautiful and intricate, its perfect.
This is the universe.
So perfect is the cosmos that it is amazing how the ancients set out to find this perfection: the spheres of geocentrism, the perfectly circular orbits of the planets (Latin for wanderers) and the Euclidian geometry Kepler sought in the pattern of the distances of the planets from the sun.
Plato thought that God made the universe to be perfect, and perfection to Plato must have been the dimensions of a sphere. We cannot, still, brush off these world views as incorrect as we must remember how long they lasted, with geocentrism having lasted over 1200 years, we know that no world view will last as long as this again. We must never forget that we will never know everything but at the same time we must not take this as a deterrent but as motivation to study further. Who knows how many more secrets the universe holds?

(I'm sleepingly blogging this from my not-so-smart-but-reliable mobile and have too much to say for its little cpu to handle, so my blog continues immediately)

Stay hungry, stay curious.

Wednesday, April 3, 2013

A (very) Brief History of the Universe

One of the pleasures of looking at the stars at night is trying to figure out what all the stuff out there really is and how it came to be.

Some of the stuff you will see includes giant gas clouds where stars are born, and like everything that is born, death is inevitable.
The death of stars is nothing short of dramatic; they can explode in a supernova (a really really huge explosion) and colapse into a black-hole (not just the stuff of science fiction), leave a neutron star nuke behind (really exotic stuff), turn into a white dwarf (some really dense objects) or recycle the material to fashion a new richer solar system.

So, through many ambitious and exotic theories and many a rigorous observations, we think we know how the universe came to be. So, I will try to give a very rough account of the creation story.

Once upon a time...-let me re-phrase that- as time and space (well, space-time if you want to be all fancy and accurate) did not exist, as a matter of fact nothing did, zilch, not even a void or anything, just absolute nothing!
At this beginning, the universe and everything in it was squeezed into one very small point. Now, I have to mince my words as the word 'small' cannot apply where space does not yet exist.

All of a sudden (Chuck Norris must have sneezed if you as me), this point expanded explosively into the nothingness, superhot (and superfast) in every untouched direction.
So hot was the universe then that any sort of normal matter could not have existed until the universe was cool enough to allow this. I like to think of it as one trying to build a house of cards during a 8.5 magnitude earth-quake (figure is purely arbitiary).

The next almost emmidiate stage (inflation) of this hot universe caused the occurrence of some familiar (and anti-familiar) basic particles that flew around everywhere forming stuff we call plasma (a very hot gas).
The universe was then like a huge cloud that looked the same in every direction and as soon as the electrons were slow enough to marry themselves to protons by the powers vested in the electro-magnetic force, atoms specifically the hydrogen atom (one electron - one proton) were born.

The fog slowly cleared as, still expanding, the universe cooled enough to allow the conglamoration of cloud-like structure made entirely of gas that we fancy calling giant molecular clouds. And out of these giant clouds came about conglamorarions of stars that formed galaxies, which (each with billions of stars) are the building blogs of the universe today.

Out of one of these galaxies was one James Dean of a supermassive star that quickly used up its hydrogen fuel and thus succuming to its gravity (gravity won over the heat-pressure).
It collapsed in a supernova that ejected tons of new comples material that was cooked in the star during its lifetime.

The cloud of dust that was left behind had enough hydrogen to create another star at its centre and the rest of the material swirled around it.
The swirling cloud became a myriad of bodies; planets that counted innto the twenties, some rocky , some gassy, crashing into each other until eight survived (nine, for all those Pluto-philes out there).
One of the rocky survivors third from the sun started having life on its surface, single celled organisms that eventually became multi-cellular. One of these cosmic new-comers became smart enough to look up and around and wonder what all this stuff is made of and how it came to be.

Fast-forward to the present and the smartest of these bipedal beings started reading this column and thoroughly enjoyed it to the very end!
To get all philosophical on you, let's imagine a thought experiment that features the whole 13.7 billion years of the universe's history on a typical 12 month calendar, where the big bang is on January 1midnight and the present is on December 31 just before midnight.

Among other timescales, the appearance of humans (civilization to be exact) is only 0.16 of a second before midnight.
On that note, it's safe to say we haven't been around a very long time and I cannot help but question our self-proclaimed superiority in the universe.

I'll leave it to the rockstar of a reader to decide. I hope the inquisitive reader will read up more on this very interesting topic.

Stay hungry, stay curious.

Monday, March 25, 2013

Why Explore Space?

Billions of rands are invested into science and technology and some into the Square Kilometre Array (SKA) project being contructed in the Northen Cape province.
Now, "why should we bother investing tax-payers' money into this project that looks to me like a big toy for a bunch of scientists to enjoy?". "Couldn't the money be put to better use in other projects that can benefit the populace such as erecting more RDP houses and feeding the hungry?" and "what is a big eye into the sky to a financially battered South African?"

I will not patronise anyone by denying the validity of these questions. Yes, hard working South Africans are struggling to make ends meet in these tough economical times. And the inertia we see in the salaries are no good news. As a staunch believer in the power of science, and so I will try to defend the advocates of this field and hopefully show the reader how beneficial this project, and many others are to the wellbieng of South Africa in the long term.

Here's a short and supposedly true story that should drive my point home. So, about four centuries ago, there lived a count in a small town somewhere in Germany. Being one of the nice guys, he often gave a part of his income to the poor. This was a time when there epidemics of the plague were rife and mortality rate went on unabated.

He met a man he found very interesting. A man who'd work tirelessly through the day to make time for his nightly project. The count was very interested this project and invited him into his home and afforded him funding and a chance for him to work on the project full time. The man in question would grind pieces of glass, delicately curved and would put them at the ends of a tube.

Naturally, the townsfolk were not happy about this turn of events and so the count insisted that they be patient for he thought something special would result from his investment. What came out of it was the microscope, no doubt the most important invention in medicine and what essentially ended the scurge of the plague.

Mind you, this was not recognised immediatelly. It was a long-term result. And this is something I'd like for us to look at regarding the SKA.

Now, the SKA really is a giant telescope that 'sees' across the whole radio spectrum, and this has many technical advantages over optical telescopes. It is no question that this project will open many doors in terms of what we will learn about the universe. I mean, it will be the largest radio telescope in the world!

In the recent budget speech, the SKA was to be allocated R1,9 bil and amount some find 'outragous' citing a 'waste of money on things that will not benefit mankind'. Papi Lekwene, a brilliant astronomer I've had the pleasure to meet, thinks otherwise. He argues how SA will be an "international hub for space exploration" and cited many benefits that will come from this project including: better weather forecasting, medicines, mining safety, communications, navigation, cancer research and many others!

In the long term, such projects can only improve SA's image and set us up with the biggest economical powers of the world. The sci-tech department provides much needed sustainable jobs and this is inline with government policy.

So, the SKA isn't just some nerds' big toy, its humanities best effort at wanting to know more and greatly improving our lives while we're at it.
----------
Sent from my Nokia phone