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Why sound comes first instead of light when you switch on the TV as light travels first?
the earliest safe dimmer switch - used in the theater - was invented by Granville Woods in the 1890's.
The first switch light was invented by John Henry Holmes in 1884.In 1890, Granville Woods invented the first dimmer switch, whichoffered a knob to control how bright or dim a …room could be.
The worlds first light switch was invented by Moe Goldberg in 1893.
The colors and the picture need to come into focus where as the sound is already in clear pitch.
Light travels faster than soundHowever when you switch a television set on the picture comes latter than soundwhat is the reason?
It takes longer for the video circuits to warm up than for the audio circuits.
People used candles to light Christmas trees before there wereelectric lights.
Yes, because the fulcrum is in the middle (the part that makes the switch go up and down) the effort is where you push up and down with your fingers the load is your fingers. …It is a first class lever.
At the speed of light.
They don't really travel at the same speed, but, on television, the distance they travel is so short, that the difference between the speed of sound and the speed of light is …almost non-existant.
The reason you hear sound before the picture is that your speakers will work immediate as your screen needs a second or two to start up.
light travel faster than sound. see in real life we see lightning first then we hear the thunder.
The colours and the picture need to come into focus where as the sound is already in clear pitch. Read more: http://wiki.answers.com/Why_does_the_sound_comes_firstand_then_…picture_on_the_TV_when_we_first_turn_it_on#ixzz18PAV5eIr .
On a desktop, the power button will usually light up. On a laptop, the power lights (located on the front of the laptop) will usually light up first.
The technology to travel at or near the speed of light does notexist and is nowhere close to being developed. No astronaut orman-made object has travelled to other stars.
It doesn't. Light travels at a speed of 300,000 km/second; sound travels roughly a million times slower. By the way, the light you see and the sound you hear in television doe…sn't travel as light or sound for most of the way - the information is encoded in a radio wave (which also travels at the speed of light). Only in the television set is the information transformed back into normal light, and sound.