need time machine plz

[Allnatural]

so I can go back two weeks, steal this costume, and wear it on Halloween.

[JKKDARK]

If I had to use a time machine I would prefer to go back to the 80's and make a Glam band

[Doomulation]

Yes, well, correct me if I'm wrong, but the logic of Time would seem "time machines" are impossible
Unless we're talking about "real" time

[Cyberman]

All right you want to travel through time, here is a serious article on it.


Now the problem is you would have had to set things up already in order to return to a time. IE your time has to already be prepared and know. No going about in the TARTIS to random times and dimensions kids!

Cyb

[vleespet]

When the method presented in the article works, it means that when they build their thingy something from the future must be there instantly (because of their full knowledge of the possibility of travelling to this 'portal'). Anything from any time in the future can travel to there.

First of all it will give some very strange implications. You can for example duplicate things very easily by sending them back in time, so it's not only a way to travel through time, but also a material-duplicator. Next there can exist things that have never been created or which are being created at the moment (draw a nice painting, go back in time with the painting and see yourself drawing the painting you're currently holding). In this way it would also be really easy to overcrowd the world. Thereby there would also be added more mass to the universe (there is a fixed amount of molecules in the universe, but when you duplicate something this way, the same molecules will exist twice).

I don't belive that there is a way to go back in time, but what IS possible is travelling forward in time, but there is no way of going back then. The only thing you need is an object that can move extremely fast (> 100000 metres per second for travelling forward a little, so you can travel a day forward in a decent time, but at least 250000 metres per second for making bigger leaps). It may even be possible to slow down time, but that is way more complex.

Self-confident people can create a machine to travel forward and send themself to the future to check out if the project succeeded and then go back to the portal. I can imagine the people sitting at the portal, waiting to get their "visitors from the future".

[smcd]

I doubt "duplication" is possible. One of the things that I feel makes time travel rather improbable (impossible?) is the matter cycle. Our bodies, for example, have a cycle. We shed skin and intake new food, etc. thus giving us a new composition. If we move to another point in time, theoretically where we already exist/existed, then we already contain matter, so the matter we are made of now cannot be the same matter as another point in time (or at least not all of it)... so, since matter cannot be created or destroyed, what in the world is missing bits & pieces of itself to allow this "extra" matter? (if this makes no sense, please disregard)

[Doomulation]

No, I believe matter CAN be created and destroyed. Of course it's only theory, but... As you should know, negative matter DOES exist. And when negative and positive matter collide, they destroy each other and release energy. It's also possible to do it in reverse, to "create" matter. I'm not an expert on the subject, though.
Slowing down "time" is easy - the faster you move, the less the impact. If you move at light's speed, you can live forever.