Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [spacetime]

The tag has no usage guidance.

0
votes
2answers
85 views

Time when traveling around the speed of light [closed]

I heard that if you travel at the speed of light or faster (say, to the Kelper systems ) and come back, thousands of years may have passed but you haven't experienced more than a few. How is this ...
-4
votes
1answer
155 views

Beating Time Dilation With Time Dilation? [closed]

I want to know if this is possible and any limitations it has. Time Dilation is an arse to say the least. It is one the things that ought to stop humankind from ascending to sci-fi badassness and I ...
17
votes
7answers
3k views

How can we transmit a date to another species?

I thought about this the other day. We often send messages to outer space hoping that someone picks them up. How could you explain to aliens that we sent this satellite about 13.8 billion years after ...
2
votes
0answers
521 views

Could the use of exotic matter be removed from Alcubierre Drives?

Im wondering if it is possible to create an Alcubierre Drive without any exotic matter. To clarify: What if you take normal flat space-time and you lower a section of it to far below the standard. ...
0
votes
1answer
381 views

Do the Voyager probes experience time moving faster due to relativity?

Time goes faster the weaker the gravitational field you are in as long as your velocity is constant. The Voyager probes have moved a long way from the sun and its planets so I presume time must be ...
0
votes
1answer
81 views

Can the Oberth effect cause space-time distortions?

I am making the sort of rhetorical parallel between Oberth effect that I conclude applies even to light because light is actually solid of some sort photons or gravity well of Earth/Sun/galaxy, black ...
1
vote
1answer
168 views

Time dilation between Earth and a similar planet revolving around a supermassive Black hole [closed]

I was thrilled watching 'Interstellar'. It was only much later that I came to realize certain anomalies in the movie (like the scene in which McConaughey approaches the Gorgantua — his body ...
0
votes
1answer
135 views

What would happen to perceived time in this scenario?

This is difficult for me to explain, but hopefully I can get my question across... Let's say there is a planet called Planet X one million light years from Earth (there probably is). Let's also say ...