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| Slinky drop (physics demonstration) https://gladerebooted.net/viewtopic.php?f=2&t=7333 |
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| Author: | Lex Luthor [ Thu Oct 06, 2011 8:59 pm ] |
| Post subject: | Slinky drop (physics demonstration) |
So amazing. It makes sense when you think about it. edit: replaced first video with a better version |
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| Author: | Taskiss [ Thu Oct 06, 2011 9:11 pm ] |
| Post subject: | |
I'm guessing if you map the centroid you'll find it drops at a constant 32 ft/sec^2 And, if it doesn't, it's magic and only AC Clarke can explain it. |
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| Author: | Arathain Kelvar [ Fri Oct 07, 2011 9:14 am ] |
| Post subject: | Re: |
Taskiss wrote: I'm guessing if you map the centroid you'll find it drops at a constant 32 ft/sec^2 And, if it doesn't, it's magic and only AC Clarke can explain it. Of course. But there's the spring force pulling each end toward that centroid, so the lower end doesn't fall, and the upper end accelerates faster than 32 f/s/s (if this is already said in the video, i apologize - watched w/o sound) |
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| Author: | Taskiss [ Fri Oct 07, 2011 12:17 pm ] |
| Post subject: | Re: Re: |
Arathain Kelvar wrote: Taskiss wrote: I'm guessing if you map the centroid you'll find it drops at a constant 32 ft/sec^2 And, if it doesn't, it's magic and only AC Clarke can explain it. Of course. But there's the spring force pulling each end toward that centroid, so the lower end doesn't fall, and the upper end accelerates faster than 32 f/s/s (if this is already said in the video, i apologize - watched w/o sound) Not much was said that I heard, more of a "double rainbow, what does it mean?" kinda presentation. No science was killed during the making of the movie. |
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| Author: | Lenas [ Fri Oct 07, 2011 1:12 pm ] |
| Post subject: | |
Did you click on the multiple choice answers and watch the multiple videos? He explains why it happens pretty clearly. |
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| Author: | Taskiss [ Fri Oct 07, 2011 2:40 pm ] |
| Post subject: | |
On my iPad I see two videos, nothing to click on |
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| Author: | Lenas [ Fri Oct 07, 2011 2:44 pm ] |
| Post subject: | |
Check it out in a real browser then, the video has annotation links you can click on like a choose-your-own-adventure book. |
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| Author: | Corolinth [ Fri Oct 07, 2011 3:05 pm ] |
| Post subject: | |
All of the video links were the same. There was slinky drop, slinky drop answer, and slinky drop extended. |
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| Author: | Lenas [ Fri Oct 07, 2011 3:26 pm ] |
| Post subject: | |
Well either way, slinky drop answer was going unseen. Until Lex edited. |
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| Author: | Stathol [ Fri Oct 07, 2011 4:10 pm ] |
| Post subject: | Re: Slinky drop (physics demonstration) |
This is all great, but what I really want to know is what happens when you drop a slinky on a treadmill. |
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| Author: | Lex Luthor [ Fri Oct 07, 2011 4:37 pm ] |
| Post subject: | Re: |
Lenas wrote: Well either way, slinky drop answer was going unseen. Until Lex edited. The first video was uninteresting because nothing happened in it, so I changed it. |
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