Search results
- How far does light go? how long does light go. - Jason (age 11) A: Hi Jason, Light just keeps going and going until it bumps into something.
- less than one photon? Can light intensity reduce to a level where it's energy is less than 1 photon (probably after travelling an almost infinite distance from a point source)?
- stars too far away to see? does there is any star that we can can't get it's light because of itis farness?...... sorry with having any problems in my English gramer, my English language is not good enough.
- light going out to space. If we are reflections of light, does that reflection make it out into space and keeps traveling til its asorbed.
How can light (or electromagnetic radiation) travel through a vacuum when there is nothing there to act as a medium, and do so forever in all directions? For example the light coming from a star millions of light years away.
Far, far, in the future, a civilization would not be able to detect anything outside of their local supercluster of galaxies, and the cosmic background radiation will have cooled enough that it will be indetectable. A photon does travel forever, but it also fades as it travels across the universe.
- How Does Light Travel?
- How Far Does Light Travel?
- Other Things That Affect The Movement of Light
- Final Thoughts
Since light travels like a wave, it can travelthrough a vacuum without interacting with anything. However, when light does go through something, that object can absorb some of it. Light travels through these objects, like glass and water, leaving heat behind. Think of a flashlight. When you turn it on and face it toward a pool, the light can travel...
Light can travel for infinity. It doesn’t have a set range, and that’s why we can see light from billions of miles away. It’s also why when we point the James Webb or the Hubble telescope out into deep space, we can see even farther, observing the light from galaxies from the very early universe. However, when light hits objects like planets or oth...
Sometimes, gravity can pull on light without completely absorbing it or reflecting it. This is common with black holes, neutron stars, and even large stars. As light passes by these objects, their respective gravities can pull on the light. If the light is far enough away, it will continue to move away from the object, but it will have a new trajec...
When you’re trying to figure out the science in the world, it can all seem a bit complicated. Hopefully, now that you know more about how light moves, you can move on to new questions and contemplate the ways that different things work. That’s what science is all about, and if you’re asking questions like how light moves, an interest in science mig...
- Theory of Light to the 19th Century: During the Scientific Revolution, scientists began moving away from Aristotelian scientific theories that had been seen as accepted canon for centuries.
- Double-Slit Experiment: By the early 19th century, scientists began to break with corpuscular theory. This was due in part to the fact that corpuscular theory failed to adequately explain the diffraction, interference and polarization of light, but was also because of various experiments that seemed to confirm the still-competing view that light behaved as a wave.
- Electromagnetism and Special Relativity: Prior to the 19th and 20th centuries, the speed of light had already been determined. The first recorded measurements were performed by Danish astronomer Ole Rømer, who demonstrated in 1676 using light measurements from Jupiter’s moon Io to show that light travels at a finite speed (rather than instantaneously).
- Einstein and the Photon: In 1905, Einstein also helped to resolve a great deal of confusion surrounding the behavior of electromagnetic radiation when he proposed that electrons are emitted from atoms when they absorb energy from light.
Aug 5, 2022 · Ask Ethan: Does light really live forever? In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime.
People also ask
Does light travel forever?
Can light really live forever?
How long has light been traveling?
Does light travel through time?
How far does light travel?
How does light travel through space?
Apr 24, 2017 · Light travels slower in a medium than it does in a vacuum, and the speed is proportional to the density of the medium. This speed variation causes light to bend at the interface of two media — a phenomenon called refraction.
