Hey guys. Here we are again for
our article on gravity Leggo…..
Revolving
(orbiting) each other.
As we were saying the last time,
who on earth is this father of modern physics? And what the hell causes this
‘attraction’ between objects? Perhaps the objects and bodies have some internal
magnets? The bigger the body, the larger the magnet hence the ability to
attract other objects to itself? Abi wetin wan cause am na? SORRY BRO! But you
are wrong. Oh!! Yes!! Some bodies have magnetic field (Yep!! Mother Earth got
that shi too!) but that is very much peculiar to planets and really really big
astronomical bodies. So then, that is not what causes gravity.
Dr
Albert Einstein, the father of modern physics came to our rescue and he said that:
GRAVITY IS CAUSED BY THE DEFORMATION IN SPACE-TIME (of course, he didn’t say
that verbatim). Deformation by what? Well, I am sure most reading didn’t bother
to ask that question. If you did, you are really following me. Einstein said
that when there is deformation of space time, the effect is gravity. Bro and sis,
no be say person get magnet or something get magnet na im come dey attract
another person or object o. Let us have it in mind that gravity is the most
constant force in nature. Well, that is pretty obvious. From mars to Uranus,
scientists keep talking about gravity. So what is the deformation about?
Deformation is due to the uneven distribution of mass/energy.
Let us put it this way that
Einstein said: Gravity is due to the curvature of space-time because of the
uneven distribution of mass/energy.
The
effect of this ‘curvature’ is that in places where there is greater
‘GRAVITATIONAL POTENTIAL’ (Erh, what does that mean, Maazi Dekatron?). (gravitational
potential simply means the work that gravity would do if the body was moved
from its position in space to another point that serves as source of reference),
there would be passage of more time corresponding to the other that doesn’t
have such large mass/energy. Let us put it more nicely. When two people are
traveling relative to a specific object that has the source of gravity, and
each has a clock, there would be difference in the time that the clocks would
display and the farther a traveler is from the object, the faster time would
travel. Actually, the pound-rebka experiment and the physical proof of the
orbiting satellites and space stations(crafts) are solid proof that the above
isn’t a THEORY or a lie. We all have GPS in our phones now (erh, maybe you
still use a 2007-2009 device sha), which apps like Google maps, Nokia map, and
etc use to determine routes and locate your positions. There are satellites in
space that make sure that you are able to use this beautiful feature, and these
satellites are affected by time dilation.
I
would love to use an analogy that a friend of mine uses. Imagine you spreading
a nice bed sheet. You sit on the bed and the sheet “deforms inside” the shape
of your bottom. The bed sheet is space-time, the sitting down that you sit down
is called the mass/energy and the deformation/curvature is called GRAVITY. It
is this gravity that makes sure that there is tide when you go to the beach,
when you throw a pencil up it comes down, when you fire a gun, it moves in as a
PROJECTILE, not like a space craft, and even responsible for our revolution
around the sun, revolution of our satellites around us that enables us watch
EUROPEAN LEAGUE and FA cup live, be able to use the GPS, and to be able to
browse. TELL ME, AIN’T GRAVITY COOL??
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