Timeline for Why does holding something up cost energy while no work is being done?
Current License: CC BY-SA 4.0
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| Mar 3, 2021 at 20:51 | history | edited | Deschele Schilder | CC BY-SA 4.0 |
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| Mar 3, 2021 at 19:40 | comment | added | Deschele Schilder | Real marbles collide realistically, i.e. in a way where friction comes into play. Just as is the case in muscle contraction. By the way, the same principle is used in a (liquid fuel) rocket. The other way around though. | |
| Mar 3, 2021 at 19:01 | review | Low quality answers | |||
| Mar 3, 2021 at 20:32 | |||||
| Mar 3, 2021 at 18:55 | comment | added | Norbert Schuch | It is not true the marble loses energy, on average. Where would the energy go? In the end, this does not answer the question: If you manage it well, you should get all the energy you put into the marbles back. | |
| Mar 3, 2021 at 18:34 | history | edited | Deschele Schilder | CC BY-SA 4.0 |
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| Mar 3, 2021 at 18:05 | history | edited | Deschele Schilder | CC BY-SA 4.0 |
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| Mar 3, 2021 at 17:42 | comment | added | Naman Parikh | If the collisions are considered to be completed elastic, why will energy be lost? | |
| Jun 17, 2017 at 21:00 | comment | added | Deschele Schilder | Haha, that's a good one! I did play games with this toy with my friends in my (much) younger days. The one who could hold the ball as long as possible in the air won and had to "fight" the next opponent. Maybe that's where I (unconsciously) got the idea from! | |
| Jun 17, 2017 at 20:53 | comment | added | SMUsamaShah | That is a really nice example. It reminds me of a toy where ball is placed at the end of a pipe, you blow from the other end and the ball floats in air as long as you keep blowing consistently. | |
| Jun 17, 2017 at 18:37 | history | answered | Deschele Schilder | CC BY-SA 3.0 |