I don't understand how space and time are linked
Everyone always brings up the photon with light clock and traveling at the speed of light the photon will travel a longer distance which makes the clock tick slower but isn't that just an illusion? Time isn't mobing slower, your body doesn't depend on how long photons take to move.
Time isn't real
The thing to understand here is that time is a "real" thing. It's not an illusion, it's not a human invention. It's a discovered property just like distance or mass.
We can observe the physics of slower time, too! Imagine an unstable particle launched from the sun at a really high speed. In fact, this speed is so fast that the particle experiences half the time that a stationary observer experiences. If the particle has a half life of 1 second, and 500 particles are launched from the sun at a detector, and the stationary observer sees the particles hit the detector 2 seconds after being launched, how many particles will the detector detect?
The answer is 250. Even if we saw 2 seconds pass, the particles only saw one second pass, so they only reduce by 1 half.
and since photons are going at C they experience no time. from their perspective they are absorbed the moment they are created
not OP, but what about strong or weak interaction that have limited range?
shouldn't their particles move at lightspeed aswell, and thus live forever and have infitinte range, since time doesn't pass for them?
here's the thing: temporal compression, time dilation, is what needs to happen to make different frames of references work
that speed of light, C, a constant used in a lot of physics, maxwell's equations for example, would become a variable if it were not for time dilation
in the example of I throw a ball at 20mph out of a vehicle moving at 40 mph the ball would move at 20mph for me (the driver) but move at 60mph for a bystander at the side of the road, both are valid frames of reference.
for physics to work the same way from both frames of reference though, the light coming out of the headlights has to be coming out at speed C for both frames of reference (not C + 40) and to do that, you need time dilation. Atoms would start doing funky things I guess.
So if time was a constant, C would become a variable and you'd need to find something to measure C against, THE frame of reference.
When einstein sits on a train that is leaving the station and is looking at the clock. the atoms arrive slower and slower to his eyes as the train speeds up. it's not an illusion, time is slowing down.
Develope please
if v = distance/time,
time=distance/v
from a photon's perspective, v = c.
How is it possible that time = 0 if velocity and distance are both not zero?
Am I assuming something wrong?
my bad, replace "from a photon's perspective, v = c." with "for a photon"
>I don't understand how space and time are linked
mathematically.