Timeline for How is magnetic energy supplied?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 6, 2019 at 9:00 | history | tweeted | twitter.com/StackPhysics/status/1169898151106363392 | ||
| Jul 16, 2019 at 20:51 | vote | accept | Stu Smith | ||
| Jul 16, 2019 at 19:16 | answer | added | BowlOfRed | timeline score: 0 | |
| Jul 16, 2019 at 19:08 | answer | added | Árpád Szendrei | timeline score: 1 | |
| Jul 16, 2019 at 19:07 | comment | added | Solomon Slow | I am not a physicist, so I can't say where the energy is stored with any authority, but yes: By prying an iron armature away from a permanent magnet, you are increasing the potential energy of a "system." It is very similar to how, by lifting a weight (i.e., by prying it away from Earth's gravity) you increase the potential energy of that "system." | |
| Jul 16, 2019 at 18:40 | comment | added | Stu Smith | @SolomonSlow I'm not very good at riddles. Are you saying that the act of prying the iron away from the magnet somehow resupplies the magnet with energy so that it can pick up the iron again? | |
| Jul 16, 2019 at 18:16 | comment | added | Solomon Slow | "...I then remove the iron from the magnet." Hint: your arms could get tired of doing that too. | |
| Jul 16, 2019 at 17:11 | comment | added | Stu Smith | I suppose that I could use a variety of methods to hover the magnet: hold it in my hands, construct some sort of mechanical contrivance to position it, and so on. | |
| Jul 16, 2019 at 17:10 | review | First posts | |||
| Jul 16, 2019 at 17:37 | |||||
| Jul 16, 2019 at 17:08 | comment | added | probably_someone | How are you hovering the magnet above it? | |
| Jul 16, 2019 at 17:05 | history | asked | Stu Smith | CC BY-SA 4.0 |