Timeline for Is it theoretically possible to project sound in a line, like flashlights?
Current License: CC BY-SA 3.0
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| Jan 9, 2015 at 14:50 | comment | added | Moctava Farzán | I believe that they are mostly used to receive sound. Of course they can be used like flashlight parabolic mirror, but the problem is that they (or any device else which works in this way) can't do it sharply; even on paper. | |
| Jan 9, 2015 at 14:07 | history | answered | Nierenberg | CC BY-SA 3.0 |