3 ms·
The entire purpose of a camera flash is to create a directed electromagnetic pulse.
by thrownaway2424 12y ago
The entire purpose of a camera flash is to create a directed electromagnetic pulse.
- djmanning 12y agoThe entire purpose? Not really. I think it has something to do with a mess of directed photons.
- thrownaway2424 12y agoDo you discern some difference between "light" and "electromagnetic radiation"? Because the former is a subclass of the latter.
- falcolas 12y agoFor a "that's the joke" - light is on the EM spectrum, so a flash directing light will direct an EM pulse. :)
- baxter001 12y agoI am SO going to start referring to flash-lights as directed electromagnetic pulse generators, albeit ones with higher than normal pulse durations.