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Cellphones are the devil’s work
Well, if I called the wrong number, why did you answer the phone? – Cartoon caption by James Thurber. But I say, “I will not pick up my cellphone even if you called the right number. Message/Text me.” Let’s put this straight: cellphones are a...
Future Shock
FUTURE SHOCK: Futurists like Alvin Toffler and his wife are important parts of any informed citizens reading. Naisbitt’s forward to Marilyn Ferguson’s The Aquarian Conspiracy was part of my introduction to other futurists. I am not sure that...
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...
The Nature of Deja Vu
Déjà Vu
by Dr. Jeffry R. Palmer Ph.D.
The term déjà vu comes from the French and means, literally, "already seen." Those who have experienced the feeling describe it as an overwhelming sense of familiarity with something that shouldn't be...
The NSTP ( Non - Spatial Thinking Process ) Theory
Abstract The NSTP theory mainly advocates that the material universe is exclusively a group of thinking process/es existing in the form of non-spatial feelings. In computer terminology it regards (material) universe as a non-spatial computer...
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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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