Showing posts with label electricity. Show all posts
Showing posts with label electricity. Show all posts
Monday, August 27, 2012
Monday, September 5, 2011
Make a Joule thief.
Make a Joule thief.: Also known as a "vampire torch".
No, not the kind of torch used during those lovely village hunts.
But, my question is, if this joule thief works, why they not making them standard on all flashlights !?
No, not the kind of torch used during those lovely village hunts.
But, my question is, if this joule thief works, why they not making them standard on all flashlights !?
Imagine the thousands, if not millions of batteries that would NOT be thrown away every year..
Hmm, business opportunity ?
Hmm, business opportunity ?
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