Activity for LaserGuyâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: Modern equivalent of a flare gun? A laser can be used. There are some lasers with SOS function but it is not necessary. The beam is visible from large area and they can locate you easily. It should be so powerful to be seen but not so much powerful to endanger airplanes above you. (more) |
— | over 7 years ago |