## 10x-12 Water Clock

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This question is about Galileo and his experiments on motion.
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Now, Galileo loved doing these experiments,
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which is why is has this wonderful giant smile.
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But Galileo didn't have stopwatch.
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Instead, he measured time with a water clock.
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A water clock was basically just a giant reservoir of water that he kept filled to the top
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and that reservoir would leak at a constant rate.
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By measuring the mass of water he collected in a certain time interval,
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Galileo could infer how long an object had been moving, let's say rolling or dropping.
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Let's define something called a time interval
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and let's say that 1 time interval is the amount of time it takes
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to fill up this bucket with one gram of water.
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Let's say that when Galileo rolls this ball, he finds that in the first time interval
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in which it's rolling, the ball rolls 0.8 m.
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Maybe that means it rolled from here to here.
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What I want you to tell me is how far the ball rolls in the second time interval and in the third.
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Now, keep in mind I'm not asking how far it's rolled after two time intervals.
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That would be the sum of the first distance and the second time interval distance.
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I just want to know in the second time interval it rolls from, let's say,
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here to some point on this board or on this plane.
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I want you to tell me how big is this distance in the second time interval and in the third.
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Tytuł:
10x-12 Water Clock
Video Language:
English
Team:
Udacity
Projekt:
PH100 - Intro to Physics
Duration:
01:18