Activity for JanKanisâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How can an optical signal be converted into a mechanical/acoustic signal without using electricity? There are several ways to directly convert acoustic/mechanic signals into optic signals (e.g. opening/closing a shutter, or the acousto-optic effect). Is there any way to do the reverse, without using photoelectric effects or other electric effects/electricity as intermediate? I suppose one way woul... (more) |
— | almost 7 years ago |
| Question | — |
Would it be possible to construct an electric generator using only ionic conductors like salt water? In a world where people are not allowed to (or choose not to) make use of electron flow current, would it be possible to construct an electric generator using ionic conductors such as tubes with salt water? If so would that work efficient enough to be practical? Edit: Or, if I were to take a permane... (more) |
— | almost 7 years ago |