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Walter Lewin Makes a Battery out of Cans and Water

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http://www.FreeScienceLectures... best physics lecturer Walter Lewin makes another wonderful physics demonstration after having read a lecture on batteries.The battery he creates has a huge potential difference - 10 to 20 kV!You'll never believe what it's made of!It's made of two cans with bottom and top open and two other cans. And then water is let to drip through the two open ones.After a short period a spark comes up, then another one, then another one.Do you know how it works? If not, see the free electricity and magnetism video course by Walter Lewin at MIT's OCW!---It's Never too Late to Study: http://www.FreeScienceLectures... This video is copyright by its respectful owners.The website address on the video does not mean anything.---

Channel: Howto & Style
Uploaded: May 3, 2007 at 12:55 pm
Author: FreeScienceLectures

Length: 06:17
Rating: 4.86
Views: 123084

Tags: battery  current  demonstration  emf  experiment  hydrogen  lewin  physics  polarization  potential  sparks  walter  

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Video Comments

wtimber (August 14, 2008 at 2:34 pm)
Are all classes at MIT this cool?
greg2230 (August 13, 2008 at 8:45 pm)
so he is like adam savage as professor.cool
andrewbreen (August 8, 2008 at 7:03 am)
The prof DOES marvel the process. The "simplest" things entertain the most complex minds.
ZionistWorldOrder (August 6, 2008 at 5:11 am)
Honors to (my hero) Viktor Schauberger, and Lord Kelvin ;)
dreamdimensions (July 28, 2008 at 3:03 pm)
the friction of the atom fields knock of and pass elections to the conductive cans
crippled82 (July 26, 2008 at 12:49 pm)
This man is from my country, Holland.
d6stringer (June 24, 2008 at 1:11 pm)
"and oh yeah your stupid."heh...so you got your physics 101 down, good job; now try grade school English!your = possessiveyou're = you areCheer up buddy, Jesus Loves you (but everyone else thinks YOU'RE an asshole). :-P
MajorUtah (June 7, 2008 at 2:45 pm)
It is static electricity.. like the same when you shock your hand on the door knob.. 8->12KVolts.. I know it's hard to believe, and it would normally kill you, but there is almost no "AMPERAGE"(Amps), so you get motivation with no mass, basically.. Hoorah, *XD
Termite551 (June 7, 2008 at 5:38 am)
If you are so great, why don't you just give us a thorough explanation of how the kinetic energy is getting converted into electrical energy. And no, the answer isn't "It's a waterfall"
someman7 (May 31, 2008 at 12:15 am)
not a battery, sorry.
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