Showing posts with label gravity. Show all posts
Showing posts with label gravity. Show all posts

Thursday, February 18, 2010

Perspective



Nouhoume: Madu, what is it like in America?

Madu:
That is a very difficult question to answer… I don’t quite know where to start…

N:
Is there millet in America?

M: Not really. It is so dry here in Mali, so it makes sense for Malians to grow millet. But we have a lot more rain in America, so we can farm a lot of wheat and corn and rice instead.

N: Do you farm peanuts in America?

M: Yes, we have lots of peanuts! Particularly in the American South, there are lots of peanut farmers. In fact, peanuts are such an important staple of the American economy that there was one peanut farmer who went on to become President!



N: Do you have the Moon in America?

M: Um… well, the Moon isn’t in America per se… but we can see the Moon from America, if that’s what I assume you meant.

N: But America is so far away!



M: America is indeed far from Mali – but we can see the Moon in America too, because the Moon is just as far from America as it is from Mali. (grabs a soccer ball for reference) You see, Mali is to the East of America, and the Earth rotates counter-clockwise from the West to the East, so though we are both seeing the same Moon from both countries, in New York we can start to see the Moon about five hours after it can be seen from Mali.

N: What about the stars?



M: We can see most of the same stars in America. But America is further North than Mali, so there are some stars of the Southern sky that you can see here but we can’t in America – and there are some stars in the Northern sky that you can see in America but not in Mali.

Do you see that thing between the stars that’s a different color than all the rest? It looks red.



N: Yes. Why is that star red?

M: It's not a star at all! It's another world revolving around the Sun just like Earth! It is called Mars. After the Moon, it is the closest body to our planet.



N: What about the Sun? The Sun is so much bigger!

M: Yes, the Sun is much much much bigger than Mars, but it is also much farther. If the Sun were as close to Earth as Mars is, then the whole world would be much too hot for us to live!

N: Are there any people there?

M: No, it is much too cold on Mars for any people to live there. And though there is air there, it is not like the air here on Earth - if we were to go to Mars we would not be able to breath... But a few years back America sent some machines to Mars that can drive around and take pictures and study the rocks on the Martian surface. They are still there today.

N: Wowwwwwww...

So Madu, why are all of those stars in a big line there?



M: That, Nouhoume, is what we call "The Milky Way".

You see, there is this force called "gravity" which attracts any two objects in the whole Universe towards each other. Gravity is attracting you to this soccer ball right now, but both you and the soccer ball are so small that you don't move towards each other. But Earth is really, really, really big - and you are so much smaller, and that is why you stay on top of the Earth. Even though the Moon is big too, Earth is a lot bigger, so the Moon is attracted to the Earth. The only thing big enough and close enough to Earth to attract it is the Sun - that is why Earth revolves around the Sun once every 365 days.

Stars work the same way. Gravity pulls stars towards each other if they are big enough and close enough, and when they get really, really close stars will rotate around each other as well! Eventually, millions and millions of stars start revolving around each other and make a big spiral like this (draws a spiral galaxy in the dirt). That is what we call a "galaxy".



Our Sun - our star - is revolving around with other stars in a spiral like this. Our star is on one of the arms of the spiral, which is why we can see so many other stars. When you see all of those stars clumped together in that big, thick line called "The Milky Way", those are just more stars in the same arm of the spiral that ours is on.

Most of the stars that we can see are in our own galaxy, but there are billions and billions of other stars in their own galaxies. We can see some of them, but it is very difficult because they are so far away.



N: Wowwwwwww.....

Madu, can you see all of these things in America too?

M: Yes, America and Mali are both on Earth, you see, so like I explained most of the things in the night sky that you can see here we can see in America too - but not all of them.

N: Madu, I have another question.

M: Shoot.



N: Do you have fire in America?

M: Yes.




Friday, June 26, 2009

On a Marrakesh Express




There are few things more unpleasant than Malian hot season. At this point in the year the village of Sanadougou is close enough to the Equator that it receives such direct radiation, the Sun beats down with such intensity that I cannot even look outside without my sunglasses on – the reflection from the sand is practically blinding unto itself. During hot season the temperature rarely dips below 100 degrees; often times the thermometer hovers around 110. Here it is just flat, sandy scrub in all directions with no body of water, no topography of any kind; pressure in the air is fairly uniform in all directions, so there is no wind to blow the sweat off your brow. The heat just sits on top of your head and refuses to ever go away. April is more or less dry hot season, so the entire Sahel is kind of like a big unpleasant sauna. But by May the rain clouds are starting to form so it is not only 110 degrees but also as humid as the cavities between the folds inside Rush Limbaugh’s ass crack.

I am not exaggerating when I say that it is a full-time job merely surviving in this climate. Human beings sweat so much that we have to be constantly drinking water simply in order to not die of dehydration. Even the water is hot. I drink about 12 Nalgenes full of hot water a day – and even then I still get massive headaches because I'm dehydrated.

This time of year, people just sit under the shade of their gwa and try their best not to melt. No one has any desire to get off their ass and do anything. Watering a garden would be downright futile. Nobody can do any work, because it’s no matter what they do it's just too……… fucking………hot……………

My Malian neighbors spend their time escaping the Sun's wrath under the gwa brewing pots of boiling hot tea and sugar.

“Madu, you drink tea?”

“NO!!!!! Get that shit away from me!!!!!”

Hot season sucks.

And if I thought that hot season couldn’t suck any harder, the night guardian at the clinic across the street from me shot my kitty cat with a colonial-era musket and ate him.

A mere seven days after the Assassination of James Brown the gardens of Xanadu were graced by a visit with Dr. Dawn – the Peace Corps Medical Officer – on her scheduled annual site visit. She seemed to be concerned for my mental health.

“Zac, you haven’t let go of this cat thing. It’s time for you to move on.”

She was right. There were few worse strategies force coping with the wanton slaughter and consumption of my kitty cat then to wallow at the scene of the crime, especially in this Allah-forsaken weather where one is so busy sweating one’s balls off and struggling to remain alive that it is nearly impossible to experience any semblance of joy.

So I packed my bag and got on a plane to Casablanca!



I was supposed to meet my family at the airport – at which time they would have for me a new functional debit card. Though due to a malfunctioning hydraulic system, my family’s flight from JFK was canceled. And of course the Moroccan currency exchangers did not have the slightest interest in trading for Malian francs. So for my first hours on Moroccan soil I was penniless, hungry, and shit out of luck.

But somehow or another my mom got Iberian Airlines to feel an enormous amount of pity and they whisked me to a luxury Casablanca spa and hotel with air-conditioning and a flat-screen TV and a toilet and a bidet and a steam bath and unlimited room service so long as I promised to never badmouth Iberian Airlines all over my blog. And I stand by my vow. When Iberian Airlines’ flights are grounded by hydraulic malfunctions, they treat you like a king.

As this grimy Peace Corps Volunteer has not had a proper shower or bath in almost a year now, I dawdled in this soapy, shampoo steam bath of bliss for at least an hour. When I was done there was a manifest ring of sludge around the bathtub.

And then I stepped outside onto the asphalt-paved street and walked along the concrete sidewalk and re-immersed myself into modern cosmopolitan existence. I sat down at the café with the morning edition of Le Monde and poured over the editorials as I sipped a carafe of red wine and a cappuccino and ordered a big hunk of lamb steak, as bloody and rare as the chef will agree to serve it, smothered in peppercorns. Only current or former Peace Corps Volunteers who have lived in villages of mud and sticks and eaten a steady diet of millet goop could ever understand just how amazing this felt…

Morocco is the most amazing country I have been to on the African continent thusfar(3 out of 54). Unlike Mali or Burkina Faso – which are landlocked agglomerations of various tribes which often have nothing in common besides the fact that they were once governed by the same French colonial magistrate – al-Maghreb is actually a nation-state of 34 million people with a sort of cultural coherence. Yes, in addition to the Arab majority there are distinct minority groups here such as the Berbers, the Gnaoua (black Moroccans) and Jews. However, since this is such a highly tolerant society there has been such intermarriage and exchange among the various subcultures over the years that now most Moroccans speak a patois of Arabic and French with a little Berber. And of course, this culture had their share of influence from the Spanish, the Romans, the Carthaginians, the Phoenicians, and - judging by the indigenous redheads - the occasional Viking raiding party.

What I enjoy about this country so much is that it is hard to pigeonhole into a greater region. In America, one would say that Morocco is in “the Middle East”. My Egyptian Arabic teacher would say that Morocco is in “Africa”. My Malian neighbors would say that Morocco is in “Europe” (it’s halfway to Spain)! All are kind of correct in that since it is located on the African side of the Strait of Gibraltar, and pretty much all maritime traffic in and out of the Mediterranean had to dock in either Tangier or Casablanca to trade for supplies at some point in time, Maghrebee culture is a deliciously cosmopolitan hodgepodge of East, West, North and South. And the result is a culture which mixes the best of all worlds.

The most conspicuous thing about Moroccan culture seems to be that men between the ages of 18 to 100 spend every afternoon at the café sipping mint tea. No women are ever present at the cafés unless of course they are serving the men. I thought this was kind of cool until I was joined for the second leg of my journey with my feminist friend – after that, I came to see the light that of course, the café is a bastion of misogyny and sexism. Nevertheless, at more gender-neutral establishments one could be treated to a constant smorgasbord of olives, couscous, spicy bean soup and crock pots full of goat and lamb and cumin and turmeric… but you know what? I’m really bad at this Condé Nast culturati fluff – I’ll leave that to a blogger with a significantly greater estrogen quotient than myself.

This blog isn't about art and dance and cuisine. It's about manly things like CONCRETE and PLUMBING and SEPTIC TANKS and SHIT. Yeah, that's right.

So here's my take on Morocco: Morocco is so incredibly awesome, not just because of the olive oil and couscous but because between 65 and 1.8 million years ago the European and African plates collided. The result of this tectonic confrontation were the High Atlas Mountains - which were pushed with enough force to reach heights of 4,000 meters. At this altitude moisture that just happened to be traveling along in the air, minding its own business, got interrupted by these ginormous mountains and so the moisture condensed and actually formed clouds - which often saturate to a point that they actually conduct precipitation. Many peaks of the High Atlas Mountains - such as Toubkal, the very highest mountain in all of North Africa (pictured below)- are so cold and receive so much moisture that that water falls as snow or otherwise freezes into snowcaps last until mid-August.




By the time that I and my parents and my sister went hiking around Toubkal in mid-June there was still a little bit of snow left. If you squint and block out the glare from the Sun you might be able to see some patches out in the distance. Yeah, there they are... Eventually enough solar radiation gets absorbed by those snowcaps that they melt and flow downhill, forming little mountain streams. Those mountain streams serve as the lion's share great of the Berbers' water supply for drinking, cooking, washing and irrigation.



The higher up we went, naturally the less vegetation there was on these mountains. Much of the valley was just full of boulders and scree; Allah did not create many prime plots for farmers or pastoralists in the High Atlas Mountains.

However, back in how many days of yore some Berber shepherds decided to pick up a bunch of heavy rocks and throw them across the mountain streams. Eventually these rocks caught enough sticks and leaves that they formed modest pools - which bit by bit accumulated enough organic matter to create a fertile humus. And grasses grew in the moist soils where they never would have otherwise among the rocks and the shepherds created for themselves prime new places to lead their goats to graze.



In some places the Berbers had gathered so much soil and were able to control the water levels so well that their rock walled-in areas would be fertile - but not flood - and grow figs and cherries and apricots in the alpine terrain.



For thousands of years this rock wall technology was pretty impressive. But then sometime in the 20th century the World Bank came in with some cement bags and fancypants engineers and created permanent, concrete irrigation canals to divert a smaller, more reliable fraction of the mountain streams so as to improve agricultural yields and simultaneously preserve the natural habitats of some of the endangered fauna which call Toubkal National Park their home.

I could totally build something like this... a piece of cake!



Yeah, political science majors from Amherst College know all about building big concrete-looking canal things...



Check out how the Berbers took a hill on something like a 45-degree angle, built ridges and then with a diversion of this irrigation canal built a cascading, multi-tiered garden plot.



And here they have diverted naturally-flowing mountain stream waters to fill a clothes-washing basin.



And since that water was once in solid form mere hours ago and is probably around 37 degrees Fahrenheit, some Berbers used rubber hoses to divert the canals further, poked holes around one loop of the hose, and created a 100-percent sustainable, gravity-powered refrigerator to chill water and soft drinks for hikers passing by their village.



All of these infinitely awesome water systems are - along with olives, couscous, turmeric and traditional Berber lute music - among the reasons why I am in love with the nation of al-Maghreb and I think I might have to live there for at least some part of my life... or at least become filthy rich and buy a villa in Chefchaouen like Robert Plant.

You might think, "Yeah, and now when you get back to Sanadougou you can build a snow cap > irrigation canal > natural refrigerator system there too! (sigh)...

Unfortunately, the village where I live in Mali is as topographically interesting as Sarpy County, Nebraska - none of these things could ever happen there.

... So until a major tectonic plate collides with the vast Malian interior, it looks like I'll be concentrating on solid and liquid waste management from now until the Mahdi returns...