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Hominid Inter-breeding
'Kenyanthropus platyops': - Perhaps the 6,000,000 year old men found by a maverick who went behind the authorities back at the Olduvai Gorge will be proven to actually not be outside the australopithecine lineage. But the Leakey family has found...
Nasa's Vomit Comet
September 29, 2005
The Vomit Comet is the nickname for Nasa's C-9 airplane used to simulate weightlessness for astronaut training. The C-9 replaced two KC-135's previously used for this function. The Vomit Comet engages in a flight lasting almost...
Revolutionary Nanotechnology Developments Part 2 - Innovations in Renewable Energy and Homeland Defense Attributable to Nanotech
NanotechnologyInvestment.com Reports: Revolutionary
Nanotechnology Developments Part 2 - Innovations in Renewable
Energy and Homeland Defense Attributable to Nanotech
Nanotechnology developments spearheading new initiatives at Ford
Motor...
The future of the Human Species - Part 2:Where next?
Many scientists are currently exploring the idea of going to live on Mars. Mars is the nearest planet to Earth and scientists actually think that the red planet resembled our Earth some million years ago. Some other scientists from the NASA Ames...
What Makes You Feel Good/What Makes You Feel Bad
Emotional Intelligence is all about self-awareness, understanding how emotions work within you and others. Our feelings are regulated by neurotransmitters such as serotonin, norepinephrine, and dopamine. Here are some things to know about serotonin,...
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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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