One thing about this project that I’m really pleased about is the fact that I read ‘A Briefer History of Time’ by Stephen Hawking and thoroughly enjoyed it. It made my head go a bit funny. It had never really occurred to me but apparently space and time began with the big bang. They’re both entirely relative. That fact in itself is pretty mad. Time moves more slowly when closer to a strong gravitational force. This is part of how a hypothetical astronaut who travelled through the universe at light speed would be younger than their twin on their return to earth.
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My friend Dave sent me a few links in response to my plea for diagrams of the universe as understood by physicists.
Here’s a link to a massive diagrammatic map of the known universe. Good for wrapping sandwiches when printed, bad for getting precise directions to Proxima Centauri. Weirdly beautiful, though.
The Universe Adventure. I haven’t had chance to read this yet so shan’t say anything about it. Has some very useful looking illustrations of Ptolemy and Copernicus’ understanding(s) of the Solar System.
The fate and history of the universe. Big words.
He also directed me to the old Royal Society lectures from 1993, by Frank Close. That’s how I’d heard of him for yesterday’s post. Here’s the link for the first of the lectures on You Tube.
I found this site called The geometry of the universe. It details key theories about the universe’s curvature.