/sci/ - Science & Math

Yes.

In fact, you could travel from one side of the universe to other side of universe in 10 days without the exceeding speed of light.

And back in 20 years as experienced by you, the traveler.

Wormholes, motherfucker.

>>1911088
explain

>>1911115
time dilation derp

>>1911115
Time gets slower as you go faster, for the people on the outside, your trip will have taken an insane amount of time

>>1911130
"for the people on the outside, your trip will have taken an insane amount of time"

Shouldn't it be the other way around?

>>1911150

It would be billions of years by the time you get back to earth.

Accelerating at 1g it would take 28 years, but that's without slowing down when you get there, so BAM you hit a galaxy.

I learned about time from Primer and what is this?

>>1911166
More like 360 days, lol.

for the traveler, yes it might seem only a few years when traveling at %95 of the speed of light. But for you, on earth waiting for them to return, it would be more than 4.5 million years.

>>1911170

No, lol.

The calculation have actually been done. It's 28 years at 1g.

>>1911166
Accelerate at 1g half way, then accelerate in the same direction -1g until you got there. What's the problem?

>>1911179
1g = 9.8 m/s
299792458 m/s = lightspeed

Accelerate from 0 to 299792458.

9.8 m________1 sec
299792458 m__

30 591 067.1 seconds

8 497.51864 hours

1 day __ 24 hours
x_______8 497.51864 hours

=354.063277 days

>>1911184

There's one REAL issue.

If you just accelerated all the way there, the journey would take 28 years, and 4,800 kg of pure matters worth of energy for each kg of payload.

If you chose to stop by the time you get there, the journey takes 29 years, but you need 4.2 thousand million tonnes of fuel for every kg of payload.

>>1911191

Facepalm.jpg

i think its pissible when using cryonic sleep

movement*time=energy

when you take away the movement there is no energy and no time means everything is standing still. its easy to send humans all around the galaxy that way without the use of time everything happens in an instand and no energy is used

>>1911150

nope, Relativity stats that the faster you go the slower, you the traveler's, watch ticks.

Photons travel at the speed of light. Photons do not experience time. If sent a photon on a journey at the beginning of the universe, and would captured that photon now; not a second would have gone by on the photon's watch.

When sending highly radioactive particles through an accelerator (ones with a half-life of only a few micro seconds), they won't decay for a few seconds to a few hours.

At what percentage of the speed of light would one have to move to travel 2.5 or so million light years in ten days?

>>1911213
2.5m ly/10days

i'd say about 0.25m ly a day

>>1911213
>>1911213

Give me a minute I'll do a rough calculation.

1 ly is 9.45x10^15 m

2.5m ly is 2.36 x10^22m

2.36x10^21 m per day

Gives us an apparent velocity of 2.74x10^16 ms^-1

c / 2.74x10^16 is a time dilation factor of 1.094x10^-8.

Basically, it would end up being 99.999999999999999999999999999999% of c. Or close to that.

>>1911207
>implying a photon could count

photon == ether wave

>>1911204
>resistance to entropy
NOPE

>>1911207

>the slower, you the traveler's, watch ticks.

Your watch goes the same speed. You wouldn't notice any difference in local time.

Everything else around you would be moving insanely fast, though.