Page 360 - Blog Posts v1

I’m quite happy with that scenario. It seems to work well. Let’s keep the time travel stuff in science fiction.
CAVEAT
After I wrote the above, I thought about a method of ‘time travel’ that does actually exist. Einstein’s equations showed that time dilation can occur due to high velocities (from Einstein’s ‘Special Relativity’) or gravitational fields (from his ‘General Relativity’). Basically, time ‘appears’ to slow down as matter moves very rapidly, or as it approaches a strong gravitational field - relative to an outside observer.
This has been proven many times using atomic clocks. Our mobile phones would not operate properly if gravitational time dilation was not accounted for. This is due to the GPS satellites being so far from the Earth, where time runs a tiny bit faster compared with the Earth’s surface.
In fact, due to gravitational time dilation, time runs at different ‘rates’ across the entire universe. I tend to think of it like a river - time flows freely when far from massive bodies like stars, galaxies or black holes. But it slows down near those objects. A bit like a river’s flow near a bank, or near its middle.
I think Matt Smith once described time as ‘wibbly, wobbly’ (in his Dr Who persona). I thought that was actually quite a good description.
Anyway, time for a wee dram...
Mike.
Mike’s Blog Posts 360