Why sound comes first instead of light when you switch on the TV as light travels first?
In the old days, TV Tubes took time to heat up to operate. The new TV's Flat screens may not have the same difference.
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Having the surge protector should not affect individual circuits. It sounds more like to me you have a bad neutral somewhere. By that I mean a wire is loose. So say the light switch or TV is left on and the bad connection is currently open, neither work. So the wind or gremlins in your house do thei…r work and the next thing you know their on because the circuit is now making through this poor connection. If this is the case, this is a bad deal ok. You should have this looked at by a qualified electrician. Now, there is something else it could be, it's called a switch feeder. It could be that somewhere else one of the kids turned on a light switch and poof, other stuff turns on. If this is the case, it's simply a matter of moving a wire from the switched side of the offending switch to the fed side. You can test this by making sure the light you want to come on is in the on position and then walking around the adjacent rooms and flicking on switches. You know, if the boys loosed some neutrals at your panel board when they were trying to find a spot for their surge protector, that would be the bad neutral I was talking about. If you just recently had it done, call them back and tell them what's going on. It will be as simple as removing the panel cover, re-tightening the screws on all the whites. You can do it yourself if you're brave. Just turn off the main and carefully tighten only the screws on the neutral/white bar. There are still places in a de-energized panel that can beat up on you, becareful and good luck. Andy Answer We had a similar problem several years ago. When we called an electrician to trouble shoot for us we found out that some of our aged "Aluminum wiring" was loose at the panel box internal connections.Some of the connections were dark with evidence of melting & burning. Very Dangerous !! Apparently when aluminum heats up it will shut-off the power, after it cools the power is restored..therefore some lights an the TV were turning off & on on their own.. A sign that there was trouble brewing. We had the electrical panel upgraded & replaced. Eventually over the past few years, we had all the aluminum removed and replaced with copper wiring. No further problems. (MORE)
Answer . Light bulb filaments glow rather than burn because of the lack of oxygen within the vacuum of the bulb. Over time, the heating and contracting of the filament and the glass surrounding it creates a leak in the base of the bulb causing the vacuum to be lost and allowing oxygen to enter …the bulb. It is during the contracting phase, which happens as the bulb cools after being turned off, that eventually the seal is lost. When this happens, oxygen is allowed to enter and the next time the bulb is turned on, the filament, now exposed to the oxygen, burns out. (MORE)
Answer . \nCheck your cable box if you have one. It may not be turned on.
the earliest safe dimmer switch - used in the theater - was invented by Granville Woods in the 1890's.
Answer . ok first off this person didnt even word this question right...they must be an idoit and once they do then their question would probably have a good answer under it.... GET IT STRAIGHT NEXT TIME!
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.
Light travels considerably faster. Sound travels at about 343 meters per second. Light travels at 299,792,458 meters per second. Light in vacuum travels about 876 thousand times as fast as sound in air. If you meant to ask if light or sound travels faster then this is the answer: Light travels… faster, with a speed of 300,000,000 m/s (which is equal to 300,000 km/s, or 186,282 miles per second). Sound, on the other hand, travels at a speed of 340 m/s (which is equal to 1126 ft/s). (MORE)
Light travels at approximately 3x10 8 m/s whilst sound travels only at 343m/s. So which do you think is the faster one?
What would the first astronauts to travel to distant stars use what to get up to the light speed instead of engines?
Perhaps this will change with future advancements, but given our current knowledge no astronauts would ever reach the speed of light or even get close. One possibility for very extended journies would be something like the particle engines that are being developed. These engines (that put out a stre…am of sub-atomic particles) produce almost no thrust, but they can produce their low thrust non-stop for very long periods of time. After a few years, the results could be spectacular with fuel requirements that might be manageable. Then, coming to a stop would be the challenge. Imagine a massive engine failure, and watching your destination fly by at perhaps ten or twenty percent the speed of light. Disheartening to say the least. (MORE)
No. It's the other way around ... sound is much slower. The numbers for each are thus: . Speed of Sound: 340.29 m/s . Speed of Light: 299,792,458 m/s . Yup - light is faster ... much faster.. You've never heard in the comic books "faster than the speed of light"??????
Light is roughly a million times faster than sound. (Speed of light in a vacuum: 300 million meters/second; speed of sound in air: ca. 350 meters/second; the speed of soundin other substances varies quite a lot.)
because when they are first switched on a large surge of electrical current flow through a cold filament. When you first switch on the bulb the resistance is small, so you get a current surge which breaks the weakened filament. The filament is weakened by repeated heating and cooling from the bulb b…eing turned on and off; which makes it brittle. (MORE)
August 8, 1988: 91 year-old Chicago Cubs fan Harry Grossman throws a switch lighting Wrigley Field for its first ever night game. Heavy thuderstorms wipe out the Cubs-Phillies game after three innings. The first official night game would be recorded the next night.
No!! Speed of light: 299 792 458 m / s Speed of sound: 340.29 m / s.
Thunder and lightning both occur simultaneously. You will see the lighting before you hear the thunder if you are far away from it because light travels faster than sound.
The speed of light, 186,282 miles per second , goes way, way faster than the speed of sound, 768 miles per hour .
In a vacuum. Light can travel through outer space (Moon to Earth), but sound cannot because sound requires air to transmit the vibrations that we recognize as sounds.
The colors and the picture need to come into focus where as the sound is already in clear pitch.
Cable television first became available in 1948 and subscriptionservices began in 1949. By 2006, 60% of Americans subscribed tobasic cable services.
Neither can "come first" - for darkness to exist there must be an absence of light. But for light to exist there must be something to burn, and before there was anything burning there would have been darkness. But.... as there would have been nothing to observe the darkness - as nothing can exist… without light - then one can say that light and darkness are mutually necessary. You can't have one without the other. (MORE)
Light. Light travels at 186,282 miles per second. Sound travels at about five seconds per mile. i believe it would be 5 miles per second , not seconds per mile No, the first answer was correct. Sound travels at approximately .211 miles per second, or about 4.7 (â5) seconds per mile.
Because light travels approximately 87,319 times faster than sound. Light speed is 186,282 Miles Per Second Sound travels at 768 Miles Per Hour (for conversion that is 768 divided by 360 to get Miles Per Second for comparison and calculation).
The first astronauts to travel to distant stars might use what to get to light speed instead of engines?
1) No physical object, such as an astronaut, that normally moves at a slower speed, can move at the speed of light. It might be possible to approach the speed of light, but not quite reach it. 2) No technology is currently known that can speed up an astronaut (and his ship, of course) close to the s…peed of light. 3) Any such technology could be called an "engine". (MORE)
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.
The travelling of light and sound are two contrasting things.The sound wave being a longitudinal mechanical wave requires a medium and makes use of the inertia and elasticity of the medium in order to progress.Whereas a light wave being an electromagnetic wave requires no medium to travel and propog…ates by means of changing electric and magnetic fields. (MORE)
The first astronauts to travel to distant stars might use what to get up to light speed instead of engines?
Anything that pushes a spaceship would probably be called an "engine". An astronaut could never "get up to light speed". Light speed could be approached in theory, but not reached.
A rheostat is an extremely ancient form of variable resistor that was used very largely to vary voltage. As you mention replacing a light switch, presumably you want to install a dimmer?. If so, lighting dimmers are solid state and are a simple replacement for a standard switch.. NOTE - you cannot… use a conventional dimmer on anything but standard incandescent lamps. They will not work on low volt, fluorescent or halogen lamps (or HID).. Make sure that the circuit breaker is turned off before starting work on changing the switch out. Just for the sake of convention the top wire on your conventional switch should be the hot one. Connect this same wire to the top wire that is on your new dimmer switch. Make sure that the dimmer switch is in the off position before turning the breaker back on. (MORE)
The first color televisions became available in the 1950s, but did not sell widely until the late 1960s.
Light travels in the form of packets of energy that Einstein named "Photons." They travel as a propagating wave called Electromagnetic Radiation (EMR) which is the result of an oscillating electron causing a perpendicularly equal magnetic wave. EMR does not require a medium to pass through, but when… it meets a medium the speed of the EMR changes. Sound is the result of the linear oscillation of particles in a medium and is defined as anything that can be sensed by the ear. For example, in normal human hearing, sound waves are a result of air particles pushing one another to produce an oscillation of air particles. Your ear perceives a "sound" when particles vibrate at such a frequency and amplitude that the mechanical components of the ear are acted upon and that the sound wave is received by the sensitive hairs inside the cochlea. (MORE)
sound is a vibration of particles heard by the eardrum, light is a photon (a particle) that flies around and bumps off things. Why? well that is one of the universal, unanswerable questions
Sure. My wife can yell at me just fine when the light is on in the bedroom, and the audience can hear the singer on stage just fine when the spotlight is on him.
They were known, at least, to the Ancient Greeks - perhaps earlier. I believe it was one of the Ancient Greeks who proved that the set of prime numbers was infinite (or "larger than any given set", or that there was no last prime number).\n\n They were known, at least, to the Ancient Greeks - perha…ps earlier. I believe it was one of the Ancient Greeks who proved that the set of prime numbers was infinite (or "larger than any given set", or that there was no last prime number).\n\n They were known, at least, to the Ancient Greeks - perhaps earlier. I believe it was one of the Ancient Greeks who proved that the set of prime numbers was infinite (or "larger than any given set", or that there was no last prime number).\n\n They were known, at least, to the Ancient Greeks - perhaps earlier. I believe it was one of the Ancient Greeks who proved that the set of prime numbers was infinite (or "larger than any given set", or that there was no last prime number).\n\n (MORE)
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.
Light requires nothing more than a source for transmission. sound requires a source and a medium to conduct it. In vacuum, there is no conductor for sound.
Who is the first astronauts to travel to distant stars might use to get up to light speed instead of engines?
There is no possible way with the technology we have right now to get up to light speed your body would not be able to handle those kinds of speeds.
How do you wire a series of recessed lights to a single switch when the power goes to the lights first?
The switch goes between the supply and the string of lights. If the supply is in a ceiling box you need to run a 3-wire cable from the switch to the ceiling box. Since your normal Romex cable for residential use has a black, white and bare wire you would use them as follows: At the switch connect b…lack to one side of switch and white to other side.. Wrap black electric tape around white cable for 3 inches or so to identify it as a hot wire. Do the same at the ceiling end. In the ceiling connect one switch black wire to the supply black and the other pseudo black wire (White wire with tape) to the black wire on light fixture. Connect the supply white wire to the light white wire. Connect all bare wires together (ground). Connect bare wire at switch to green screw on switch. (MORE)
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.
yes the little buggers come out when the lights are on. if you seethem wandering in the light that means they are very hungry and arewilling to chance it for some food.
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.
No. If it did, then we'd have to call it light, not sound. Actually, there's a little bit of a difference between the two speeds. Like light travels about 879 thousand times faster than sound does.
Sound travels much more slowly than light. This is why we see the flash of lightning before we hear the thunder.
Sound travels, in air, at about 320 meters per second. Light travels about 300 000 000 meters per second
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.
Olaus RÃ¸mer explained the apparent incorrect timing of the eclipses of the Jovian satellites by the speed of light.
Menlo Park from California was the first city to switch from using torch light to electricity in 1882. This has happened because of the funds invested in the research projects about direct current conducted by Thomas Alva Edison.
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 doesn't travel as light or sound for most of the way - the information is encoded in a radio wave (which also travels at the spe…ed of light). Only in the television set is the information transformed back into normal light, and sound. (MORE)
Light travels at 186,000 miles per second. Sound travels at around 765 m.p.h., but that can cary a bit depending on temperature and humidity.