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Galileo used two distantly-separated lanterns in his experiment.
Galileo knew that light traveled very quickly, but did not appreciate how fast it really is. Standing on a peak at night with a shuttered lantern, he sent a colleague with another lantern to a peak some miles away, where the lights would still be visible to each other when opened.
At a prearranged time, Galileo would uncover his lantern. The colleague, when he saw the light from Galileo's lantern, would uncover his own lantern, so that Galileo could then see it. The time between Galileo's uncovering and the time he saw the other lantern would be the time it took light for a round trip equal to twice the distance they were apart.
The result, as would be expected today, was that the colleague saw the light practically as soon as Galileo uncovered it, and uncovered his own, which was then visible practically instantaneously to Galileo. No matter how far apart they were, the brief time lag was identical.
Considering the reaction time by the assistant, and the time taken to open the lantern, Galileo reasoned that light traveled far too quickly to be measured.
What else can I help you with?
1600s Galileo attempted to measure the speed of light using blank?
Galileo attempted to measure the speed of light using lanterns positioned at known distances and observing the time it took for light to travel between them. He would uncover the lanterns simultaneously and use a telescope to try and detect any delay in the light reaching his eyes. However, his methods were not sensitive enough to accurately measure the speed of light.
How did the Greeks measure the speed of light?
I don't believe there was any serious attempt to measure the speed of light before Galileo. That was a couple of millennia after the golden age of the Greek philosopher 'scientists', who, I believe, assumed the transfer of light to be instantaneous, and the perception of distant events to be simultaneous with the event.
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?
Why did Galileo want to find out what the speed of light was?
oh Galilieo
Why did Galileo fail at obtaining the speed of light when he attempted to calculate it by measuring the time it took to travel between two points?
His two observers were so close that the time it took for light to go from one to another and back again was too small to be measured with the clocks that he had. Even if he had observers 15,000 kilometers apart, the result would have been a time change of .1 second, too small to be accurately measured with the water clocks available to Galileo.
1600s Galileo attempted to measure the speed of light using blank?
Galileo attempted to measure the speed of light using lanterns positioned at known distances and observing the time it took for light to travel between them. He would uncover the lanterns simultaneously and use a telescope to try and detect any delay in the light reaching his eyes. However, his methods were not sensitive enough to accurately measure the speed of light.
How did the Greeks measure the speed of light?
I don't believe there was any serious attempt to measure the speed of light before Galileo. That was a couple of millennia after the golden age of the Greek philosopher 'scientists', who, I believe, assumed the transfer of light to be instantaneous, and the perception of distant events to be simultaneous with the event.
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?
Why did Galileo want to find out what the speed of light was?
oh Galilieo
Who try to measure the speed of light?
Roemer was the first to measure the speed of light.
Why did Galileo fail at obtaining the speed of light when he attempted to calculate it by measuring the time it took to travel between two points?
His two observers were so close that the time it took for light to go from one to another and back again was too small to be measured with the clocks that he had. Even if he had observers 15,000 kilometers apart, the result would have been a time change of .1 second, too small to be accurately measured with the water clocks available to Galileo.
How would you measure the speed of light?
Light years
Does a megaphone measure light and speed?
No, a megaphone is a device used to amplify sound, particularly human speech. It does not measure light or speed.
How do you measure the speed of light?
by getting boners.
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!
Who was the scientist who discovered that heavy and light body of the same substance fall at the same speed?
Galileo Galilei, an Italian scientist, is credited with the discovery that heavy and light bodies of the same substance fall at the same speed in a vacuum. He conducted experiments to demonstrate this principle of free fall.
