As promised
before – and as a consequence of my post on Einstein, I talk now of the idea of
time. The question of why time is irreversible is one of the biggest unresolved
questions in science.
It’s in
fact agreed that time only has one direction, from past to present to future. I put here below a clip from the movie IQ that's both very funny and interesting.
If a system
is unchanging, it is timeless. Time can be considered to be the fourth
dimension of reality, used to describe events in three-dimensional space. It is
not something we can see, touch, or taste, but we can measure its passage responsible for daily or circadian rhythms. In the brain neurotransmitters and drugs affect
time perceptions. Chemicals that excite neurons so that they fire more quickly
than normal speed up time, while decreased neuron firing slows down time
perception. Basically, when time seems to speed up, our brain distinguishes
more events within an interval. In this respect, time truly does seem to fly
when one is having fun.
As I was preparing this promised post, I did some research and if you go to read the
websites linked below, I bet that you too will be at least fascinated; in fact
the relationship between time and space makes my (broken) head spin, simply because the possibilities are endless.
- https://www.popsci.com/science/article/2012-09/book-excerpt-there-no-such-thing-time
- http://www.physics-astronomy.com/2016/05/according-to-einstein-time-is-illusion.html#.WrlYHS7wYdV
- http://everythingforever.com/einstein.htm
- https://www.psychologytoday.com/us/blog/biocentrism/201202/does-time-really-exist
- http://discovermagazine.com/2007/jun/in-no-time
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