Activity for jhgjmhgvjhg
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Sunshade communication? Imagine we have a shade launched in space that can be turned opaque and transparent. We can use it to communicate in binary, and mathematically sound extraterrestrials can pick up the pattern. Of course the shade will be small enough and far enough from the sun, and will block a tiny angle of the sun... (more) |
— | over 7 years ago |