00:04The ring being in effect a one-turn shorted secondary.
00:12A smaller ring will react even more violently.
00:20Here is another ring.
00:21This one made of a material we say is non-conducting.
00:27And it is completely unaffected.
00:31Here is another example.
00:34Several thousand watts of power were involved in that spark.
00:38If we replace the spark gap with a copper coil,
00:43the same power now flows through the coil.
00:47It's invisible, has no effect on many substances,
00:51but it can generate a lot of heat.
00:55Wood, paper, things that we think of as being quite inflammable,
01:00are not affected at all.
01:04However, a piece of steel wool bursts into flame instantly.
01:13Did you ever fry an egg on a cold stove?
01:17It's no trick at all if you have the right equipment.
01:20This is a cold hot plate.
01:22And because it's cold, you can make it out of wood, if you like.
01:26Just be sure that there's a coil of wire inside
01:28and that you connect that coil to a high voltage alternating current source.
01:34The rest is easy.
01:36As long as we're being different,
01:38we'll use motor oil instead of Crisco.
01:53The egg fries very quickly.
01:55But the stove remains perfectly cold.
02:00In fact, if you wish to keep it handy,
02:03you can fry your egg on the morning newspaper.
02:07With a gadget like this,
02:09you can get up in the morning,
02:11sit on the stove,
02:13read the morning newspaper,
02:14and fry the eggs in your lap.
02:17Another example of the fact that physical forces can be quite selective.
02:21even
02:21the
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