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  1. May 2, 2014 · Light may seem to be an exception, leading many to say that light is a wave that can travel through a vacuum with no medium. Light doesn't use EM fields as its medium; light IS an EM (electromagnetic) wave. Maxwell's equations tell us that a magnetic field changing in time causes an electric field to change in space, and an electric field ...

  2. 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. Light is observed as traveling at velocity v=c, according to the second postulate of special relativity. But according to ...

  3. Jan 5, 2015 · The spacetime interval of photons is reduced to zero, that means that they do not travel through spacetime, their momentum is transmitted directly from one place to another. The only observable trace they are leaving in spacetime is an electromagnetic wave moving at light speed c.

    • 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.
  4. The reason you can see each object is that light has traveled a great distance through a vacuum to your eyeball. There have also been experiments on earth that require light to pass through a man made vacuum. Scientist actually use the speed and properties of light traveling through a vacuum as a standard. Click Here to return to the search form.

  5. Jan 27, 2023 · The answer is that light moves as a wave, and it can go on forever. Let’s go over what that means and dive a little deeper into the topic. How Does Light Travel? Since light travels like a wave, it can travel through a vacuum without interacting with anything. However, when light does go through something, that object can absorb some of it.

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  7. May 19, 2016 · So the question re: how can light travel through a vacuum if it’s waves is a nonsensical question. There are no collapsing wave functions in light. There’s only probabilities of position that ...

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