500 per min.
alright alright the answer is strobe lights
To make the hazard lights alternating flash, a kit called a wig wag is added to the flasher system. To have actual strobe lights, then a strobe kit with its own light has to be installed.
Because of the triboluminescence.
It's a calibrated flashing light used to measure the rotational speed of, say, a spinning motor shaft. Like the timing light used by mechanics on a car. The strobe is variable, and it can be "run up" until the flashing light on the spinning object causes the object to "stand still" and not appear to move. Then a peek at the readout of the strobe, and the user will know how fast the object is turning. Note that the shaft doesn't stop turning, but the strobe flashes and it illuminates the same spot on the shaft with every rotation, and that's what makes it (the shaft) appear to stop moving. All the operator need to be concerned about is avoiding a harmonic. If the strobe is flashing at exactly half the speed of the shaft, it will be illuminating the same spot on the shaft each time it flashes, but the shaft will actually have turned twice instead of once. But a good operator can avoid that.
that doesn't even make any sense...
The history of strobe lighting dates to 1931, when Harold Eugene Edgerton employed a flashing lamp to make an improved stroboscope for the study of moving objects, resulting in photographs of objects such as bullets in flight.
VERY short red stone clock connected to a red stone lamp[on 1 side]
Type in :flashify to make your character like a strobe light. Also :dog someone to make them a do. You can also make them a creeper by typing in :creeper someone.
Strobe lights are Zenon gas filled tubes that uses a high voltage to ionize the gas and make the flash. The resulting flash is very bright. The whining you hear is the capacitor(s) charging up before it can flash the lamp. You could, with the proper power supply, flash a tube fast enough that it seems to be a steady light. If you just want it on apply enough power to ionize the gas constantly. It maybe weak compared to your expectations.
Start from the lowest setting on the strobe, and then work your way up till you find the highest setting that freezes the rotating item. This will hold for a single blade. Lower strobe settings (lower rpms) may also look correct, but you're actually catching the item at half the true rpm. The item will appear to be stopping after 1 revolution, but you're watching it after 2 revolutions every time the strobe flashes. With a two bladed propeller, you run into a similar problem, except that running the strobe twice as fast can give misleading results. It is helpful to make an identifying mark on one blade that can be easily seen when the strobe is running. Then find the highest rpm where that marking stays in the same spot. This will assure you that you aren't counting half rpm, and that you aren't counting twice rpm by watching the other blade move to the same spot.
On some vehicles turning the key on, off,on,off,on will make the check engine light flash the code. Three flashes, pause, three flashes would be 33 for example. If that doesn't work you will have to have it checked with a scan tool.
add a faster relay