It travels swiftly.
Regular unleaded...
By bullet train?
As fast as possible?
It travels lightly.
Buys a ticket online, heads for the airport, gets all its orifices probed, sits uncomfortably for hours, eats crappy snacks, then waits for its luggage while hoping the gorilla from the Samsonite commercial didn't load it, just like everyone else?
when light travels faster than the speed of light, it turns into dark matter.
you’re welcome
Ether, waves or switchable packets.
Maybe if we knew more about how to travel light we’d know more about how light travels? Mas no?
The equations that describe this marvelous dance of fields were discovered by James Clerk Maxwell, who first published his insight in 1861, in the early months of our Civil War.
Maxwell's equations only generate the intertwined solution combining magnetic and electric fields when the reference frame is moving at the speed of light. For any other velocity, the equilibrium breaks down, the bubble pops, the photon dissipates its little quantum of energy.
Photons can move through materials other than the vacuum. When this happens, the speed of light in those materials differs from that of the speed of light in a vacuum.
In any medium other than vacuum, the speed of light is slower. No one has ever found a material in which the speed of light exceeds measured in a vacuum.
It really is not very complicated. Light acts as a particle and a wave because is not either. What we are seeing is its reflection, and “it” is what is not known. It is a manifestation of mass, but we view mass incorrectly.
Job 38:
“Where is the way to the dwelling of light?
And darkness, where is its place,
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That you may take it to its territory,
That you may know the paths to its home?
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Do you know it, because you were born then,
Or because the number of your days is great?
22
“Have you entered the treasury of snow,
Or have you seen the treasury of hail,
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Which I have reserved for the time of trouble,
For the day of battle and war?
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By what way is light diffused,
Or the east wind scattered over the earth?
(SHEESH)
In 1638, Galileo tried to determine the speed of light.
His method was quite simple. He and an assistant each had lamps which could be covered and uncovered at will. Galileo would uncover his lamp, and as soon as his assistant saw the light he would uncover his.
By measuring the elapsed time until Galileo saw his assistant’s light and knowing how far apart the lamps were, Galileo reasoned he should be able to determine the speed of the light.
His conclusion: “If not instantaneous, it is extraordinarily rapid”.
“And how can it behave like a wave and pass through a vacuum, when all other waves require a medium to propagate?”
Wrong! Electromagnetic waves do not require a medium through which to propagate. Radio, television, x-ray, light are different frequencies of electromagnetic fields which travel through a vacuum at 299,792,458 meters per second.
If you are traveling the speed of light in your car and turn on the headlights, do they light up anything? ;-)
Right. No one knows what light actually is.
Short answer: "So how does light travel? Basically, traveling at incredible speeds (299 792 458 m/s) and at different wavelengths, depending on its energy. It also behaves as both a wave and a particle, able to propagate through mediums (like air and water) as well as space. It has no mass, but can still be absorbed, reflected, or refracted if it comes in contact with a medium. And in the end, the only thing that can truly slow down or arrest the speed of light is gravity (i.e. a black hole)."