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Post by ironhold on Jan 24, 2019 3:14:31 GMT
By all appearances this was intended to be a stand-alone episode, but at what appears to be the last minute Science Channel forcibly grafted the second episode on to this one.
There was zero advanced advertisement that I saw for this one to indicate what was about to happen, and so I missed the first half of this episode.
I'll comment on it once I do see it.
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Post by ironhold on Jan 24, 2019 4:10:44 GMT
Yeah; these episodes were originally filmed and created as two separate episodes that Science merged together for broadcast. I'm not happy.
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Post by ironhold on Jan 24, 2019 5:23:53 GMT
Anti-Gravity: Who exactly had the idea to put weights at both ends of the cord? I didn't see it when I watched it.
Pencil Myths: How long exactly did it take to write all of those words?
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Post by GTCGreg on Jan 24, 2019 7:06:59 GMT
Anti-Gravity: Who exactly had the idea to put weights at both ends of the cord? I didn't see it when I watched it. Pencil Myths: How long exactly did it take to write all of those words? They didn't say how long it took them to actually write the words, but at the beginning, they calculated it would take one person a week to write 45,000 words. I don't think they said who came up with the idea of the weights. I tried to go back and look, but the DVR on my shop TV was acting up and wouldn't let me rewind. Maybe I can check it on the DVR in the theater tomorrow and see if I can find that info. |
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Post by the light works on Jan 24, 2019 15:37:40 GMT
didn't they do the slinky myth on the original mythbusters, too?
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Post by the light works on Jan 24, 2019 15:57:48 GMT
I think the (off air) logic on the upper weight is that the slinky had more mass than the elastic did.
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Post by the light works on Jan 24, 2019 16:13:29 GMT
bonus myth: can you scale up snapping yourself with a rubber band?
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Post by GTCGreg on Jan 24, 2019 18:39:34 GMT
I think the (off air) logic on the upper weight is that the slinky had more mass than the elastic did. The purpose of the top weight on both the slinky and the car drop bungee is to prevent the top of the slinky (or bungee) from accelerating faster than it would normally if it was only being acted on by the force of gravity. Normally, the top would accelerate at 32 ft/sec 2, but in the case of a stretched spring or elastic, the acceleration is much more than 32ft/sec2 because it is accelerating do to both the force of gravity plus the compressive force of the spring. |
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Post by the light works on Jan 25, 2019 3:18:02 GMT
I think the (off air) logic on the upper weight is that the slinky had more mass than the elastic did. The purpose of the top weight on both the slinky and the car drop bungee is to prevent the top of the slinky (or bungee) from accelerating faster than it would normally if it was only being acted on by the force of gravity. Normally, the top would accelerate at 32 ft/sec 2, but in the case of a stretched spring or elastic, the acceleration is much more than 32ft/sec2 because it is accelerating do to both the force of gravity plus the compressive force of the spring. with the inertia of the top weight, the spring maintains tension longer than without it. |
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Post by GTCGreg on Jan 25, 2019 3:23:52 GMT
The purpose of the top weight on both the slinky and the car drop bungee is to prevent the top of the slinky (or bungee) from accelerating faster than it would normally if it was only being acted on by the force of gravity. Normally, the top would accelerate at 32 ft/sec 2, but in the case of a stretched spring or elastic, the acceleration is much more than 32ft/sec2 because it is accelerating do to both the force of gravity plus the compressive force of the spring. with the inertia of the top weight, the spring maintains tension longer than without it. And it is that tension that keeps the lower weight from dropping right away. |
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Post by the light works on Jan 25, 2019 4:02:53 GMT
with the inertia of the top weight, the spring maintains tension longer than without it. And it is that tension that keeps the lower weight from dropping right away. I still think they did it on grown up mythbusters, too. |
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