5 ms·
The speed of light isn't constant. Light travels slower in glass and water than in air. The difference in light speed in different materials is why refraction a
by distract8901 3y ago
The speed of light isn't constant. Light travels slower in glass and water than in air. The difference in light speed in different materials is why refraction and lenses work. Additionally, light can bounce around inside a prism or a lens and take a longer path which takes more time.
- dylan604 3y agosounds like you didn't quite think about the question. everything you just said would make light late. it can't be early though.
- distract8901 3y agoEarly and late are typically relative terms. Some photons absolutely can arrive earlier than other, slower photons.
- pyinstallwoes 3y agoIf your relative time is based on measuring the event through a glass of water then by removing the glass of water the light would get there faster thus an early register of the event.
- spockz 3y agoSure it can. If the material being used allows one speed normally. And by changing something like voltage you can make the light go faster or take a longer round. Then you can speak of light being “early(Ier)” or late compared to the default state.
- dylan604 3y ago"you can make the light go faster" are you listening to the words you're saying? seriously? yes, we can make light go slower so that the sensor receives light at different times. i'm with you all the way to the point you make some ridiculous not thought out comment about making light go faster. No. Just stop. We cannot do that. We can only slow light down.
- dekhn 3y agoNobody is saying they are increasing c, everything here is relative. You are making many comments that are misinterpreting what people are saying to you.
- dylan604 3y agoThe person literally said “you can make light go faster”
- dekhn 3y agoI think you're being intentionally obtuse and pedantic. Nobody implied that c is being increased beyond c in a vacuum.
- ChrisClark 3y agoIntentionally misunderstanding does not add any value to the comments. Just stop.
- distract8901 3y agoLight moves faster through air than glass. When light transitions from glass to air, it goes faster.
- pierat 3y agoRather than be incredulous and faux-shocked, go look up cherenkov radiation. It's when electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium at a speed greater than the phase velocity (speed of propagation of a wavefront in a medium) of light in that medium.
- Dylan16807 3y agoWhat definition of "on time" are you using, and why do you assume it's the only good definition?