2007-03-06 12:42:41 · 11 answers · asked by Ava 3 in Science & Mathematics ➔ Astronomy & Space
tachyons. they aren't proven to exist, but if they do, they are faster than anything else. Light can get from here to my school in barely any time. If a tachyon went from my house to my school, it would go BACK in time. It would arrive a little earlier than when it was sent. You can guess why people debate whether these suckers exist.
2007-03-06 12:51:41 · answer #1 · answered by the blue hat 2 · 0⤊ 0⤋
Of couse, light is the fastest thing in the universe (taychons are theoroically possible if you can imagine an object with imaginary mass. It does have some interesrting properties and are fun to play with in theory).
However, I chose to believe that you are asking about the fastest man made object which would be the Helios spacecraft at 252,792 km/h.
2007-03-06 22:18:01 · answer #2 · answered by Walking Man 6 · 0⤊ 0⤋
I believe that would be light, and it travels at 3.0x10^8 m/s. We have theorized in Particle Physics that some particles might be able to exceed this speed, but nothing that fast has been tested, light is the fastest thing we've measured.
2007-03-06 20:49:02 · answer #3 · answered by Science Guy41 2 · 1⤊ 0⤋
light travels the fastest. Supposedly, nothing is able to travel faster than it (unless you read sci fi). It travels at 186,000 per second. as for matter moving in space, we don't even know everything (planets, astroids) that's out there let alone how fast they travel.
2007-03-06 22:01:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Most people would say light, but it is measured in light speed. How can you measure something against itself?
If one ray of light going one direction, met a ray of light going another direction, Both would be going at the speed of light, but relative to each other, they would still be going at the speed of light. Kind of strange. We may need another measuring stick. Nothing can go faster than the measuring stick used to measure it.
Even in atoms circling a nucleus, we use light to measure the speed. If they go faster than the speed of light, we still get the speed of light as an answer.
By the way,the speed of light is measured as 186,000 miles per second. Sunlight takes eight minutes to reach the Earth.
2007-03-06 20:59:26 · answer #5 · answered by John S 2 · 0⤊ 0⤋
Light. The speed of light in a vacuum is exactly 299,792,458 meters per second (fixed by definition). Although some people speak of the "velocity of light", the word velocity is usually reserved for vector quantities, which have a direction.
2007-03-06 20:50:06 · answer #6 · answered by Anonymous · 0⤊ 1⤋
light, it travels at 186,000 miles per second. Nothing is faster than light. Well according to Einstein. The closest star to our solar system, not including our Sun(star) is 4.3 light years away. If you shined a huge flashlight towards that star, it would take the light from that flashlight 4.3 light years to reach it. Our sun is 93,000,000 million miles away. It takes its light 8 minutes to reach us.
2007-03-07 17:08:44 · answer #7 · answered by Adam B 2 · 0⤊ 0⤋
The speed of light is 983,571,056 feet per second, or 299,792,458 meters per second
2007-03-07 00:40:57 · answer #8 · answered by BhitchyPrincess 5 · 0⤊ 0⤋
The photon. A photon is the particle that caries
light.http://tech.groups.yahoo.com/group/NeatAstronomy/
2007-03-06 20:56:19 · answer #9 · answered by chase 3 · 0⤊ 0⤋
That be light missy, @ Approx: 186,000 mile per second.
2007-03-07 02:00:19 · answer #10 · answered by Anonymous · 0⤊ 0⤋