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re: When, if ever will we have spacecraft that can travel at light speed?
Posted on 2/22/17 at 10:10 pm to GetEmTigers08
Posted on 2/22/17 at 10:10 pm to GetEmTigers08
(no message)
This post was edited on 1/10/21 at 8:04 pm
3
Posted on 2/22/17 at 10:10 pm to CLane33
quote:
So if you left the earth at or near light speed and then tried to come back after a substantial amount of time, you would technically find yourself in the past.
Time is experienced relatively. At or near lightspeed, what feels like a few hours or days to you results in (I don't know the exact correlation) possibly years or many, many years having passed elsewhere.
Posted on 2/22/17 at 10:22 pm to texag7
quote:
Impossible. The only way would be some type of wormhole entanglement discovered thru quantum mechanics
Quantum entanglement, to me, is still one of the freakiest things about the known universe. Theoretically, particles on either side of the universe can be entangled and they don't assume their positions until being observed. Then the alternatives are even freakier getting into stuff like freedom-of-choice and superdeterminism...
Posted on 2/22/17 at 10:26 pm to bhtigerfan
If you are traveling the speed of light inside of a space craft, could you throw a football forward and make it travel faster than the speed of light?
Posted on 2/22/17 at 10:27 pm to bhtigerfan
quote:
When, if ever will we have spacecraft that can travel at light speed?
No way. Like the comment above. Maybe 10%, which is enough.
The true way to travel is to find a way for creating a stable wormhole or bending space, those things could be possible. It's hard to imagine what we can do with a couple thousand more years of scientific advancements.
Posted on 2/22/17 at 10:27 pm to PaperPaintball92
quote:
If you are traveling the speed of light inside of a space craft, could you throw a football forward and make it travel faster than the speed of light?
That's not how it works. The ball moves relative to the conditions inside the ship.
This post was edited on 2/22/17 at 10:28 pm
Posted on 2/22/17 at 10:32 pm to Honky Lips
quote:
Actually we are approaching peak population and will eventually start to come down. Overpopulation Explained
Very good video. Thanks for that
Posted on 2/22/17 at 10:34 pm to bhtigerfan
quote:
The new galaxy is only 230 trillion miles and 40 light years away! It's hard to wrap your mind around that.
In an attempt to wrap my mind around it, I came up with the following:
According to google, the average moderately active person takes around 7,500 step/day. If you maintain that daily average and live until 80 years of age, you'll have walked about 216,262,500 steps in your lifetime. Doing the math, the average person with the average stride living until 80 will walk a distance of around 110,000 miles
If we assume that every person alive in the world today, say 7 billion people, walks this amount of miles... it comes out to approximately 131 light years of distance walked.
So everyone in the world combined walking distance in their lives could almost make two roundtrips to that new solar system.
This post was edited on 2/22/17 at 10:35 pm
Posted on 2/22/17 at 10:37 pm to SidewalkDawg
That is how it works. If you're in a jet moving 500 mph, and you throw a football forward at 20 mph, the football is moving 520 relative to the ground.
What if you shot the football forward out of the spacecraft while traveling the speed of light through space. Could it go faster than the speed of light?
What if you shot the football forward out of the spacecraft while traveling the speed of light through space. Could it go faster than the speed of light?
Posted on 2/22/17 at 10:43 pm to PaperPaintball92
Nothing can go faster than light speed, but I have no idea what would happen to the football. Does Neil Degrasse Tyson post in this bitch?
Posted on 2/22/17 at 10:46 pm to Honky Lips
quote:
Nothing can go faster than light speed
I know he says this but want to know what happens to the football, too.
quote:
Does Neil Degrasse Tyson post in this bitch?
This place needs him in the worst kind of way.
Posted on 2/22/17 at 10:48 pm to PaperPaintball92
Without getting too technical. Your hypothetical is impossible for two reasons. 1. You can't travel at light speed and 2. Nothing can go faster than light speed.
But even so when you throw a ball it's moving away from you. It's reference frame is traveling relative to you.
When you add things like time dilation into the mix it can help account for why to the observer on the ground it would not break light speed.
But even so when you throw a ball it's moving away from you. It's reference frame is traveling relative to you.
When you add things like time dilation into the mix it can help account for why to the observer on the ground it would not break light speed.
Posted on 2/22/17 at 10:49 pm to bhtigerfan
You can't really reach light speed, it's against the laws of physics
Approaching light speed is actually a theory for traveling to the future. For instance, if you can never reach light speed according to the laws of physics, if you are on a vehicle travelling 99% the speed of light, the closer the vehicles gets to approaching light speed the slower the objects in the vehicle move so that they will never reach light speed. This means that everything outside the vehicle is moving in normal time while time within the vehicle is crawling
Light year travel may have to rely on a warp drive, warping space and literally riding a wave of time and space, the vehicle technically remains still while time and space move around it( Or we could figure out worm holes
Approaching light speed is actually a theory for traveling to the future. For instance, if you can never reach light speed according to the laws of physics, if you are on a vehicle travelling 99% the speed of light, the closer the vehicles gets to approaching light speed the slower the objects in the vehicle move so that they will never reach light speed. This means that everything outside the vehicle is moving in normal time while time within the vehicle is crawling
Light year travel may have to rely on a warp drive, warping space and literally riding a wave of time and space, the vehicle technically remains still while time and space move around it( Or we could figure out worm holes
Posted on 2/22/17 at 10:54 pm to whodidthat
Here's a good video on the limits of humanity with regards to space travel
Posted on 2/22/17 at 10:56 pm to The Baker
Just have Data set in a course at warp 6
Posted on 2/22/17 at 10:58 pm to SidewalkDawg
quote:
You can't travel at light speed
What if we developed technology allowing us to travel 1 mph below the speed of light? Could we launch an object forward from, or inside the craft at 2 mph?
Posted on 2/22/17 at 10:58 pm to SidewalkDawg
quote:
If you are traveling the speed of light inside of a space craft, could you throw a football forward and make it travel faster than the speed of light?
That's not how it works. The ball moves relative to the conditions inside the ship.
Kind of
First, you can't move at the speed of light since you have mass. Same with your ship, etc.
Knowing that, yeah, the football would look like it moved normally, as sidewalkdawg pointed out. But it wouldn't in space. It would move faster than you're traveling, but less than the speed of light, to put it simply
Posted on 2/22/17 at 11:01 pm to PaperPaintball92
quote:
What if we developed technology allowing us to travel 1 mph below the speed of light? Could we launch an object forward from, or inside the craft at 2 mph?
The same applies. Only massless objects can travel at light speed. An object with mass would require infinite energy to reach light speed.
Posted on 2/22/17 at 11:02 pm to PaperPaintball92
No, from what the laws of physics tells us, everything in a vehicle moving at close to lightspeed will be slowed down so as to never reach light speed
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