How The Pendulum Works
19 Feb 2008Have you ever looked inside a grandfather clock or a small mechanical alarm clock, seen all the gears and springs and thought, "Wow -- that's complicated!"? While clocks normally are fairly complicate...
ERNEST SENAYA
ERNEST SENAYA:
speeches
Ignition Coil
19 Feb 2008
In order to generate as high a voltage as possible at the secondary it is necessary to produce as high a voltage as possible at the primary. This is because the secondary voltage is just the turns ...
- 479
speeches
Why Toothpaste Repels Water
19 Feb 2008
Water has too much surface tension to make bubbles last...they contract on themselves and pop, and the water evaporates fast too. But soap (and the soapy substances in toothpaste, etc., which are ...
- 493
health
White Blood Cells
19 Feb 2008Whenever a germ or infection enters the body, the white blood cells snap to attention and race toward the scene of the crime. The white blood cells are continually on the lookout for signs of disease....
- 615
general-articles
Dew
19 Feb 2008Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening. As the exposed surface cools by radiating its heat, atmospheric moisture condenses at a rate great...
- 609
general-articles
Foam On The Ocean
19 Feb 2008Each water molecule contains one oxygen and two hydrogen atoms. The bonds that hold these atoms together are partially ionic, which means that the atoms have a partial (non-integral) electronic char...
- 522
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