00:00 [Music]
00:06 If you can see lightning or you can hear thunder, you're already in danger.
00:10 [Music]
00:18 If you're placing yourself next to a larger object,
00:22 you're subjecting yourself to risk posed by what we call side flash,
00:26 where lightning current will flash off the tree over to some adjacent object.
00:31 [Music]
00:45 Holding any corded power tool or telephone radio receiver,
00:52 if there's an external antenna, not a good idea during a thunderstorm.
00:57 [Music]
01:00 In 99.99%, a vehicle would offer very good safe shoulder.
01:06 A conductor, like a metal roof for example,
01:09 the lightning current won't travel through the metal,
01:12 it will travel over the surface of the metal,
01:14 what we call the high frequency skin effect.
01:16 [Music]
01:21 It's a bit different for big dump trucks and big rubber-tyred.
01:26 The current going through, earthing out through the tyre,
01:30 can cause what we call a pyrolysis,
01:32 which is where the internal of the tyre starts to burst and burn from the inside out.
01:39 [Music]
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