WEBVTT
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00:00:00.640 --> 00:00:02.229 A:middle L:90%
Okay, so if we take a look at this
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00:00:02.229 --> 00:00:07.059 A:middle L:90%
here, if we look at this picture in the
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00:00:07.059 --> 00:00:13.689 A:middle L:90%
X Y plain, this part is a cylinder Dillinger
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00:00:14.539 --> 00:00:19.809 A:middle L:90%
. But on ly at Z equals negative one.
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00:00:20.190 --> 00:00:23.190 A:middle L:90%
So it's taking one slice of a cylinder. So
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00:00:23.190 --> 00:00:28.730 A:middle L:90%
one slice of cylinder and one slice of a cylinder
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00:00:28.730 --> 00:00:33.329 A:middle L:90%
is a circle. So it's a circle, uh
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00:00:33.340 --> 00:00:38.960 A:middle L:90%
, down here with the radius one at Z equals
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00:00:38.960 --> 00:00:39.649 A:middle L:90%
negative one.