Activity for Deanâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Could we use both speed and heat to penetrate Europa's ice? Could we fire a heavy, long (e.g., 50 meters), spear-shaped object into Europa's icy-surface from space and then, when momentum stops, gravity gradually moves weights down inside copper tubes the length of the object like electrical-generator components generating electricity to heat the tip for melt... (more) |
— | almost 6 years ago |