cyth0987 said:okay we never know a weak source disseminate how much photon and i think it disseminates millions of it. i am waiting for another answers
cyth0987 said:okay we never know a weak source disseminate how much photon and i think it disseminates millions of it. i am waiting for another answers
http://en.wikipedia.org/wiki/Double-slit_experimentA low-intensity double-slit experiment was first performed by G. Taylor in 1909,[6] by reducing the level of incident light until photon emission/absorption events were mostly nonoverlapping. A double-slit experiment was not performed with anything other than light until 1961, when Clauss Jönsson of the University of Tübingen performed it with electrons.[7][8] In 2002, Jönsson's double-slit experiment was voted "the most beautiful experiment" by readers of Physics World.[9]
A gear is a mechanical device that has teeth or cogs that mesh with other gears to transmit power and motion.
A gear works by using its teeth to interlock with the teeth of another gear, which then causes rotation and movement.
There are several types of gears, including spur gears, bevel gears, helical gears, worm gears, and rack and pinion gears.
Gears are used to transfer power and motion between two or more rotating shafts in a machine or mechanism.
To identify a gear, you can look at its shape, teeth size and number, and the type of teeth it has (straight, helical, etc.). You can also consult a gear catalog or ask a specialist for assistance.