Activity for Keithâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: Can I significantly shorten the days on a planet that can support human life? Firstly, with regard to possibility and the planet size and rotational period, note that Jupiter and a radius more than 10x that of the Earth, but a day of only 9.8 hours. Note also that the Earth's day was originally much shorter and has increased. This is mainly due to the tidal effect of the moon.... (more) |
— | over 9 years ago |