Speed of light - Why we can't reach it

[Witness1970]

20 hours ago, Qapla said:

Question:

 

Since the light from a distant star is many lightyears away, what we see of that star happened sometime in the past because it takes time for that light to reach us. If you were able to travel towards that star, as you approached the star the light you would see would get newer until it becomes "real time" like the light from our sun. So, if you kept an observation device trained on the star while traveling, would you be able to observe the history of that star as you flew towards it?

 

Depending on the speed you were travelling and if you could actually observe the star clearly, the events you see would change progressively.  (Of course, as you got closer, you might see that sometime ago, the star went Nova or Supernova.)  The speed of the change in events you see would depend on the speed you travel.  If you could actually see the events, they would be compressed.  The amount of compression would, again, depend on the speed you were travelling.

 

Gravity waves have been proven to travel at the speed of light.  A device was set up that could detect gravity waves.  The gravity wave created due to the collision of 2 black holes was detected at the same time the light from that event reached earth.  Therefore, the gravity wave from the collision had to be travelling at the speed of light.

 

If the black hole at the center of the galaxy suddenly disappeared, the solar system, which is approximately 25,000 lightyears from the center of the galaxy, would continue to orbit the center of the galaxy for 25,000 years.  If the black hole at the center of the galaxy suddenly disappeared, the edge of the galaxy, which is 100,000 lightyears from the center of the galaxy, would continue to orbit the center of the galaxy for 100,000 years.

 

I have seen various estimates for the distance to Betelgeuse.  The most recent estimates put Betelgeuse some 450-500 LY from earth.  (I didn't know how to pronounce Betelgeuse until I heard an astronomer say what sounded like Beetlejuice.  That was an AHA moment for me a few years ago.)   Betelgeuse is a variable star, but recently the star has dimmed far more than usual.  Astronomers believe that the star might be going Supernova.  Regardless, whatever we are seeing is what happened about 450-500 years ago.

 

Sorry if I am getting off topic.  I just got carried away.  Maybe a new topic should be created?

Edited November 24, 2024 by Witness1970

[Dextronaut]

On 11/22/2024 at 5:23 AM, Witness1970 said:

Time is not the 4th dimension.  Time is an illusion.  Time is a construct that was created to measure changes in the physical space around us.  We keep track of the earth revolving around the sun and call it a year.  We keep track of the earth's rotation and call is a day.  We keep track of the moon revolving around the earth and it is approximately a month.

 

Everything we measure is approximate.  The earth is approximately 93 million miles from the sun.  Light travels approximately 186,000 miles per second (one estimate I heard is 186,234 miles per second).  A year is approximately 365 days (365.2422 days would be closer).  There are 2 many examples of approximations to name them all.

 

Space is real, created by Jehovah.  Time is a construct that we created to measure changes (movements of objects) that happen in the observable space around us.  The past does not exist (except in memory and records) and cannot be visited by travelling faster than the speed of light.  The future has not yet happened, so it does not exist either.  Jehovah can predict the future, but it is just something we look forward to.  It does not exist yet.

 

Science Fiction shows about travelling forward or backward through time might make for good entertainment, but it isn't possible to visit things that do not exist.  I have always loved shows about time travel.  As I said they can be very entertaining.

This feels sound and I agree! Jehovah is the timekeeper because he is everlasting to everlasting. Time really is just our measurement and perspective of dynamic changes that Jehovah set in motion... well.... a long "Time" ago!