Activity for Mr.Dâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Would mining huge amounts of resources on the Moon change its orbit? Imagine that humanity builds mining facilities on the moon. We know that the moon has Helium-3 which could be used as fuel for fusion reactors. Also, there are a lot of other resources which could be used for building ships and buildings instead of transporting them from Earth. Thousands of tons of... (more) |
— | about 5 years ago |
| Question | — |
To make a blue moon, what element does it need? We know that Mars has a reddish color, because its ground consists of iron-based compounds. The moon is grey-whiteish because it consists mostly of silicon-based compounds. What element should the moon in my world have in order to have a blue color? I thought about cobalt-based compounds, but natur... (more) |
— | about 5 years ago |