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How do we know that light is the fastest thing in the universe?
Wiki User
∙ 10y ago
Einstein told us. and he was smart.
A:
We don't, there are models that strongly suggest that there are particles that move faster than light. Although their existence has not been proven, this is because we cannot really prove them because of limits in our own technology & knowledge.
For example, gravity. The light from the Sun takes about 8 minutes to reach Earth. If gravity caused the Earth to orbit the Sun's apparent position based on the speed of light, the orbit would be different. In fact the Earth is orbiting the Sun's actual center of mass. In order for this to happen, gravity must have an effect that is much faster than the speed of light.
Answer2:
The Cosmos is a Quaternion space and the real dimension is r=ct, where c is the speed of light and t is time. The speed of light c is the fastest speed of an object. if Energy is Bounded or Conserved.
Wiki User
∙ 10y ago
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How far in light years is the most distant know source in the universe?
I dont know can someone answer it ?
How big is the helix nebula compared to our sun?
If the Helix Nebula was an ocean, our Sun would be like a grain of sand. Nebulas are so huge that it takes light thousands of years to cross one, and light is the fastest thing we know of.
What travel fastest liquid gas solid?
Light is the fastest thing on earth as we know it. Traveling at a astonishing speed of 186,282 miles in one second!!
What was the first thing appeared in universe?
Well the first thing in the universe... (before it was even a universe) was always there it didnt appear it was always there, one person that we know that was here first was God... but God didn't appear... he was always there. God was not created, for he is the a creator.
How is it possible to know that the element hydrogen exists throughout the universe?
We see the light of main sequence stars throughout the universe. Such stars fuse hydrogen.
Which is faster light or thought?
I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.I don't know how thought would be measured as a mental process, however I can say the fastest physical thing in the universe known to man is light, which travels 186,282.397 miles a second.
If nothing can go faster than the speed of light inside of the universe then what if you or me go outside of the universe?
Impossible, as the universe is expanding at the speed of light. By the time you got to the edge of the universe, the edge will have moved at least as far away from you as you originally started from. Let's say that the fastest I can move is 60 mph. I want to catch a car that's travelling away from me at 60 mph. The only thing I can do is to stop the distance between me and the car from going greater -- I can never catch up. Nothing in the Universe can travel outside the Universe according to what we currently know about physics.
What is the fastest thing in the world?
AnswerThe fastest thing in the world - in fact the universe - know to man is light (or light particles called photons). Light travels at a speed on 186,000 miles per second.Another viewTachyon particles travel faster than light. Man-madeThe fastest man-made thing on Earth is the X-43 (Unmanned Aircraft). It can achieve a speed of Mach 9.8 or 7,460 mph The X-15 is the fastest manned aircraft in the world which can reach Mach 6.72 or 5,115 mph.Outside EarthThe space shuttle is faster - 26,000 miles per hour - but technically doesn't operate in the planet. Also, In spacecraft, The voyager 2 travels at around 35,000 mph. Rockets used to send stuff into outer space travel at speeds ranging from 17,000 mph to 36,500 mph.
Which animal is the fastest runner in the universe?
The universe is huge and we know nothing about possible life forms elsewhere so it is impossible to answer your question. On earth, the cheetah is the fastest land animal.
Why scientists think that their are no aliens . because they find the signs of other creacure?
The sheer size of the universe leads people to assume that, till proven the contrary, aliens have not contacted us. Einsteins General Relativy says that nothing can travel faster than light, and the more mass, the more energy it would take to get it close to the speed of light, eventually reaching infinite energy. The closest star is about 4 light years away, which means that it takes light, the fastest thing in the universe, 4 years to get here from that star. If you know the speed of light you can calculate that distance.
Does man know the extent of universe?
the limits of universe are still not defined. until now whatever we know about the limits of universe is because of the light we see. if we keep on receive light from farther distance than that means universe's limits are even beyond. but if we don't receive light from farther distances than that means universe has limits. THIS IS NOT A PROFESSIONAL ANSWER.
What does speed compare?
The speed of light is the fastest speed we know about.
How do astronomers know the universe is infinite?
The universe is not infinite. It is 156 billion light-years wide. A light-year is equivalent to about 9,500 billion km
Is the universe only the earth?
Definitely not! The universe goes on forever, and ever; far past our wee planet earth. It takes YEARS for light to pass across our whole galaxy, there are Many parts of the universe too, explored, and unexplored. We know our earth is in a solar system, which is in a galaxy, which is in a universe! And even more mysterious: BLACK HOLES! There is so much gravitational pull that light can't even escape it. But, the only thing is that we don't know where it leads...
How far in light years is the most distant know source in the universe?
I dont know can someone answer it ?
How big is the helix nebula compared to our sun?
If the Helix Nebula was an ocean, our Sun would be like a grain of sand. Nebulas are so huge that it takes light thousands of years to cross one, and light is the fastest thing we know of.
if the light is the fastest thing in the world then how did the dark get there first?
Because there was nothing but darkness first but somehow someone made light and everything else but we humans still don't exactly know what it is so in our theory and science light is the fastest thing in our world.
