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Atlantis
ICE AGES: - The impact of the ice ages and inter-glacial effects on the rise and fall of ocean levels and the earth readjustments to the departure of the ice cap cannot be over-looked in the human historical picture. Research in the area is far...
Biotechnology Rather Than Aid Can Alleviate Poverty
G8 leaders have agreed to boost aid to Africa by $25 billion by
2010. The G8 countries include USA, Canada, Britain, France,
Japan, Russia, Germany and Italy. As expected, Africa is in
celebration mood. To many, this announcement heralds the...
Hands-On Review: 802.11g Wireless Network Starter Kit from U.S. Robotics
The Straight Facts:
Pros - For systems with a USB port, it comes with everything you
need for 50 bucks. Install, setup and use were easier than with
other 802.11g wireless systems that I have tested.
Cons - The most difficult process was...
I Helped Exorcize a Spirit
Actually I have 'helped' exorcize spirits more than once but this particular one could have beeen taken by science to prove that exorcisms are not weird and do not need dogma or fear to be used with them. An Exorcism I Was Involved In: While...
Predators
The prophet Mohammed (PBUH) said “It is prohibited upon my nation to eat whatever has claws & what has canine tooth, from predatory animals” [Refer to Abu Daud] The Modern Nourishment science confirmed that people acquire some of the characteristics...
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A spring called: Drop of water
Do you know what happens when a drop of water hits a non-absorbent surface? Yeah you’re right (if you don’t have the answer, please re-read the title of this column), the drop bounces upwards.
A French scientific team from the Collēge de France have studied the scene carefully with a camera that took 40000 images per second. Here are the results:
At first, when it hits the surface, the drop flattens. Then, it bounces up due to the movement energy it had when falling down. The drop will continue going upwards eventually taking the shape of a needle. Afterwards, the drop falls upon itself, into itself. It thus takes the shape of a pancake (again) but this time, the drop is in midair.
This phenomenon is different to a drop falling on other surfaces as in this case, the drop crashes on the surface leaving only a small quantity of the water to bounce up.
Physicists have also found out that the actual speed of a drop influences its deformation but not the time taken for it to get in contact with the surface. This actually depends upon the mass of the drop.
Anyway why
is all this stuff important anyway? Scientists believe that this find may be of interest to the industry. There’s a small illustration:
Imagine not seeing droplets of rain on your car’s windscreen when it is in fact raining cats and dogs outside. Cool, isn’t it? Well this may well be possible with these new data obtained by the scientists from the Collēge de France. How though? Easy enough! The period of contact of the raindrops with the windscreen is so minimal that the driver does not even see them!
Water drops bounces like springs, would you ever have thought of this? No, I’m not sure you would.
About the Author
K.A.Cassimally is the editor in chief of Astronomy Journal and Astronomy Journal Ezine. He is also the co-founder of the RCPL Astronomy Club. K.A.Cassimally is best known for his article 'Harry Potter and the Moons of Jupiter'.
He is also Senior Columnist at BackWash.com where he writes 'Not Scientific Science'.
Website: http://www.rcplastronomyclub.zik.mu
:http://www.backwash.com/content.php?id=358
Email: kcassimally@rcplastronomyclub.zik.mu
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