It is time for another 'science is fun' video! Bar magnets in a DVD case used to show how combined magnetic fields can be used to hold another magnetic object in place even when it is an inch or so away from the actual magnet. How to get mangetic sand (iron etc) from the beach!
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submitted by sid (20 m) on 11 Dec 2007 02:08:20 IST (741 views)
http://www.FreeScienceLectures.com
This video shows what different colors the alkali elements burn.
Strontium chloride, barium chloride, sodium chloride and potassium chloride are burned.
This video was done by YouTube user 'nitrex'.
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It's Never too Late to Study:
http://www.FreeScienceLectures.com
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Notice: This video is copyright by its respectful owners.
The website address on the video does not mean anything.
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submitted by sid (20 m) on 11 Dec 2007 02:06:40 IST (716 views)
Air pressure is the weight of air. Air is a gas and takes up space and has mass. Explore the effects of these facts and see applications of air pressure. Boyles law is explained as well as the reason why a suction cup works
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submitted by sid (20 m) on 11 Dec 2007 02:06:06 IST (742 views)
