Since the electron has 'rest mass', there's not enough energy in the universe to
boost one to light speed. With enough energy, you can push an electron as close
as you want to light speed, but it can never get exactly there. At light speed, the
mass of an electron would be infinite.
No, a mass cannot travel at the speed of light according to Einstein's theory of relativity, as its mass would become infinite which is not physically possible. Photons are particles of light that always travel at the speed of light and have zero rest mass.
Particles that have no mass, such as photons, travel at the speed of light in a vacuum. These particles exhibit wave-particle duality and can behave both as waves and particles. Light, as a form of electromagnetic radiation, also travels at the speed of light.
No but the leader that travels from the cloud to the ground travels at about 60 000 m/s. Light travels at 300 000 000 m/s. Note that the bright flash of lightning occurs on the return stoke and travels from the ground up to the cloud. Read the article on lightning at Wikipedia.org, 'The World's Encyclopedia'. The link is in the related links below.
Particles such as neutrinos and photons have been observed traveling very close to the speed of light. Neutrinos are known to have tiny but non-zero mass, while photons are massless particles that always travel at the speed of light in a vacuum.
It is not possible for a particle with mass to reach the speed of light, as it would require infinite energy. Additionally, at speeds approaching the speed of light, relativistic effects become significant, causing time dilation and length contraction.
The only thing that travels at the speed of light, is light. Light is also said to have no mass, therefore the only way for something to travel at the speed of light is for it to have no mass.
According to Einstein, no body travel in the speed of light. He gave an relationship between the mass and speed (relative mass) in his theory of relativity. According to that, if a body travels in a speed of light, then the mass of the body must be infinite. Which is practically impossible. space-time travel is just a science fiction. it may become true in future. but it is impossible right now.
The mass of a body increases as its speed increases. A body that has any masswhen it's not traveling at the speed of light would have infinite mass when it istraveling at that speed. So its kinetic energy would be infinite, and anything it hit ...whether a bird, a plane, the Earth, or a star ... would be totally blasted to smithereensthat were too small to detect.Fortunately, a body that has any mass when it's not traveling at the speed oflight can never travel at that speed.
No, a mass cannot travel at the speed of light according to Einstein's theory of relativity, as its mass would become infinite which is not physically possible. Photons are particles of light that always travel at the speed of light and have zero rest mass.
It is not possible for a body to travel faster than the speed of light. It isn't simply a matter of technological insufficiency; it's a fundamental physical limit. With the expenditure of sufficient energy, it is theoritically possible to approach the speed of light, but light speed cannot be achieved by any body with mass, hence neither can it be exceeded. I'm so bored
Any massless "thing" like a photon and MAYBE a neutrino. NOTHING with mass can travel at the speed of light. Photons travel at the speed of light. The entire electromagnetic spectrum travels at the speed of light.
Particles that have no mass, such as photons, travel at the speed of light in a vacuum. These particles exhibit wave-particle duality and can behave both as waves and particles. Light, as a form of electromagnetic radiation, also travels at the speed of light.
Light does not accelerate as it always travels at a constant speed of 300,000 kilometers per second in a straight line, as per the laws of physics. This is because light does not have mass and therefore does not experience acceleration in the same way that objects with mass do.
No but the leader that travels from the cloud to the ground travels at about 60 000 m/s. Light travels at 300 000 000 m/s. Note that the bright flash of lightning occurs on the return stoke and travels from the ground up to the cloud. Read the article on lightning at Wikipedia.org, 'The World's Encyclopedia'. The link is in the related links below.
"Almost" seems to be the key word in this question. The photon travels always at the speed of light, and can travel at no other speed in the medium through which it travels. So "almost" does not fit the photon. Certain subatomic particles can be accelerated to near light speed: neutrons and protons are accelerated to near-c in particle accelerators. But they have mass, and nothing with mass can ever be accelerated to 100 percent of the speed of light, so they can only approach it, if enough energy is applied.
Particles such as neutrinos and photons have been observed traveling very close to the speed of light. Neutrinos are known to have tiny but non-zero mass, while photons are massless particles that always travel at the speed of light in a vacuum.
Nothing with mass can travel at the speed of light, though it can get close. Nuclear fission (the splitting of atoms) does generate electromagnetic radiation which travels at the speed of light, but light is a form of electromagnetic radiation anyway.