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Posts Tagged ‘irreversibility’

Reverse Reverse Reverse

Hi mates! Whoever has taken university physics should know about irreversibility – which is related very closely to the idea that the entropy of the universe can only increase. Basically, what it says is that a lot of phenomenon (if not all) is irreversible. Examples: you can get older and not get younger, burnt paper cannot go back to the state before it was burnt, what is done is done and the process can’t go backwards.

However, this clip here from Youtube (3 mins, 14 secs) shows us that reverse actions are possible (at least in a movie). I really think that this video is really amusing. If you check out further (on Youtube), there are quite a number of people trying to produce ‘the best’ reverse video ever. After looking at a few videos, this video that I linked in this post is ‘the best’ one.

I think this post is related, to some extent, to my post before which is discussing about the concept of time. I realised that in the reverse video, instead of moving the time forward, it moves the time backward! Combining some acting skills of the actors in the video and backward streaming, voila, we have the reverse movie.

This just made me think, maybe someday the scientists can invent something which violates the entropy law, i.e. making possible irreversible actions which we now deem impossible. Or maybe in the future there will be a device which lets us to travel back in time or move forward with 2x speed (just like a DVD player). If it can’t happen in real world (which I think is the case), maybe it can happen in a simulation room or something. It could be a nice attraction to put in an amusement park! Anyway, since I am still so amused and confused at the same time about all these things, any thoughts on anything are welcomed to give some enlightenments. Thank you.

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