system
Given the following post, respond as if you're commenting on Reddit:
human
I'm fascinated by space travel, I have some questions that I hope you can give an answer to.

I'm agglomerating the questions here because I don't want to spam.

* Is it possible to create artificial gravity in space like in the movies? If so have any experiments in this regard been made?

* From what I understand we are centuries behind actual space travel beyond our solar system, what can I expect in the next 50 years in this regard? We cannot travel at light speed, and even if we could some systems are millions of light years away, is the universe exploration even possible?


Thank you very much!
gpt
Artificial Gravity - There are no devices that you can turn on and create "gravity". What you can do however is to have the ship move in such a way as to create the same effect as gravity. This means the secton of the ship that you want gravity in  has to always be accelerating. This can be done by having the whole ship always accelerating at 9.8m/s/s but that would require a lot of energy to maintain. Another is to have a section of the ship rotating (as seen in Kubrick's 2001). In the same way that you are "thrown" to the side of the car when you travel around a bend, with the ship section rotating at the right speed you will be "thrown" towards the ground in a way that "feels" like gravity.