isn't that like the craziest technology ever - turning your tv on and off etc
2006-09-07 22:20:51 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Most remotes use a infra-red light and transmit a pattern of pulses for functions to the reciever.
2006-09-07 22:30:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
What kind of remote controls ?
There are infra-red remote ( TV, VCR )
There are radio-wave remote ( car alarm, garage door )
For the TV, it is just the infra-red transmitter LED blinking at ten's of kilo hertz. The receiver picked up the signals and have a micro-controller decode the message and perform the tasks required
2006-09-07 22:26:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
most often, just radio waves. Older ones tended to use infrared, but infrared is very directional so you had to point fairly exactly at the tv.
each button sends a wave with a certain code, that gets recognised by a small computer chip in the tv as a command, which then get executed.
2006-09-07 22:23:24 · answer #3 · answered by AntoineBachmann 5 · 0⤊ 0⤋
the area to the Moon is around 3.eighty 4 x10^8 meters (on standard, it varies). A radio transmission travels on the fee of sunshine, this is 3 x 10^8 m/s. So, with the help of dividing, it could artwork out to 3 million.28 sec. for the transmission one way. So, if an operator in the worldwide have been responding to an adventure he observed on the Moon, the sign could take a million.28 sec to realize Earth, the operator could choose a while to react, then any action taken could take yet another a million.28 sec to get lower back to the digicam on the Moon. So, transit time, around 2.6 seconds, then upload in reaction time, you've got around 3 seconds of postpone (variety of).
2016-12-18 06:45:24 · answer #4 · answered by jorelus 4 · 0⤊ 0⤋
Some by ultrasonic sound, most by infrared light pulse codes. The TV has a code receiver on the front.
2006-09-07 22:28:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
yeah that is pretty interesting isn't it? ask einstein how he figured out how to make a way to make a lightbulb work and he said he didn't, mind you this was a genius, and he said but I can tell you 200 some ways how not to make it work, that means he says by his own admission that he never really did figure it out, I think god must have had a hand in it
2006-09-07 22:26:12 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Yeah, it's almost as crazy as people on earth sending commands to control a vehicle on Mars.
2006-09-07 22:25:43 · answer #7 · answered by vinny_the_hack 5 · 0⤊ 0⤋
Push the buttons and see what happens.
2006-09-07 22:23:10 · answer #8 · answered by Luminara 2 · 0⤊ 0⤋
radio signals
2006-09-07 22:33:02 · answer #9 · answered by Anonymous · 0⤊ 0⤋
electromagnetic wave
2006-09-07 22:22:50 · answer #10 · answered by LJ 2 · 0⤊ 0⤋