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The Danish astronomer Olaus Roemer was the first to measure the speed of light. (within 25 % of the actual value)
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Does a megaphone measure light and speed?
yes it does
Is internet speed decrease when bandwidth increase?
Bandwidth is the same as "speed". "Speed" is the popular name, it is not a very precise term.Bandwidth is the same as "speed". "Speed" is the popular name, it is not a very precise term.Bandwidth is the same as "speed". "Speed" is the popular name, it is not a very precise term.Bandwidth is the same as "speed". "Speed" is the popular name, it is not a very precise term.
What can scientist measure when light rays are emmitted by a moving source?
Scientist measure when light rays are emitted by a moving source the speed of light. Depending on the moving force they can also measure bending light.
How fast is the speed of sound and speed of light added together?
If you try to measure it its still the speed of light : 186,000 miles per second PLUS about 0.2 miles per second.
Is light year per hour is a measure of speed?
Well... yes, but it's not a very useful one. Light travels one light year in... one year. So the speed of light (which you cannot accelerate to) is about 1/8766 light years per hour.
Who try to measure the speed of light?
Roemer was the first to measure the speed of light.
When did scientists attempt to measure the speed of light?
Are you asking when the speed of light was first estimated, or are you asking when the speed of light was first actually measured?
Who is the scientist use the light year to measure the speed of light?
It doesn't work that way. The light-year is not used to measure the speed of light. It works the other way round: First, the speed of light is determined through other methods, then the distance called a light-year is calculated based on that measurements.
How would you measure the speed of light?
Light years
What happens if you are driving a car at the speed of light and you cut your headlights on?
They'll leave your car at the speed of light, and when that light passes anybody, they'll measure the speed of the light as it passes them to be the speed of light.
How do you measure the speed of light?
by getting boners.
Does a megaphone measure light and speed?
yes it does
1600s Galileo attempted to measure the speed of light using blank?
In 1600 Galileo attempted to measure the speed of light using lanterns and shutters
If you go faster than the speed of light does everything turn dark?
First of all, the conditions you suppose in the question aren't possible. You do not go faster than the speed of light. But to answer the question, I would remind you that one of the most impoortant foundations of the Theory of Relativity is that no matter how an observer is moving, and no matter where the light is coming from, every observer measure the same speed of light. So no matter how you were moving, light from the usual sources would pass by you at the speed of light. (That's the speed you would measure as the light sailed past you.)
Why it harder to measure the the speed of light than it is to measure the speed of sund?
Roughly speaking, light moves about a million times faster than sound in air.
Which is faster and why speed or light?
Light is faster because speed does not move. Speed is a measure of the rate of movement but, in itself, it does not move - at all!
Why did early experimental attempts to measure the speed of light fail?
If you want to measure the speed of something, you first have to recall that speed is (distance traveled) divided by (time to travel the distance), and then you realize that you have to measure the distance it travels and the time it takes to travel that distance. If it happens to be the speed of light, then you immediately have a serious problem. The speed of light is so great that ... -- If you pick a distance that's easy to measure, then the time is impossibly short. For example, if you pick ten miles, then you have to accurately measure 0.00005368 of one second, which is pretty tough. -- If you pick a time that's easy to measure, then the distance is ridiculously long. For example, if you pick 0.1 second, then you have to accurately measure 18,628.2 miles, which is enormously tough. Both of these methods are theoretically and technically perfect, and completely impossible to actually use for the speed of light. You have to invent whole new clever ways to measure speed.
