Timeline for Would it be possible to build a powerless holographic projector?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 26, 2023 at 23:53 | vote | accept | user98816 | ||
| Jun 2, 2023 at 14:35 | comment | added | Paul Sinclair | @NuclearHoagie - To produce 1 gee of gravity by rotating a 1000 km radius ring requires a full rotation every ~33.5 minutes, so no nice day-night cycle. So it would be better to have the rotational axis face the sun and use a conical mirror to reflect it, and arrange some sort of moving shade if a day-night cycle is desired. (It may not be: spend some time in the far north in the summer, and you'll realize you can adapt to it never getting dark.) | |
| Jun 2, 2023 at 11:54 | comment | added | RBarryYoung | Something that "projects a holographic image of the Sun" without using any power is called a "Mirror". | |
| Jun 2, 2023 at 11:25 | comment | added | AlexP | I have no idea what you mean by a "holographic projector". Can you elaborate what this wondrous device is supposed to do? | |
| Jun 1, 2023 at 20:34 | comment | added | Nuclear Hoagie | So long as the ring has some axial tilt relative to the ecliptic, the real sun will be visible in the sky already - sunlight will directly shine on nearly half of the inside of the ring, yielding a completely typical day-night cycle if the rotational period is on the scale of a day. Do you really need to illuminate the night side of the ring as well? | |
| Jun 1, 2023 at 18:09 | history | became hot network question | |||
| Jun 1, 2023 at 11:35 | answer | added | MichaelK | timeline score: 21 | |
| Jun 1, 2023 at 11:07 | answer | added | L.Dutch♦ | timeline score: 12 | |
| Jun 1, 2023 at 10:05 | history | asked | user98816 | CC BY-SA 4.0 |