The final chapter of the book has some interesting points. It goes over the warping of spacetime (gravity, you see, is not so much a force as it is like putting something heavy on a mattress so that things go down toward the heavy thing when they think they're going straight) and the experimental and experiential evidence for relativity.
I like the fact that there is direct evidence for it.
There is a also a section in which we imagine multiple tiny physicists in tiny individual elevators, which might make a nice allover pattern for quilting cotton or something.
We are then reminded (or informed, if we didn't already know it) that quantum theory and the theory of relativity don't work together. They both seem to be right, to the extent that we can determine their rightness, but they can't both be right at the same time.
Job security for physicists.
The authors also point out -- or, I hope, remind us -- that we only get the new knowledge that allows us to have new technology (like lasers, GPS, and the internet) when we allow people freedom to think about stuff that doesn't necessarily have an obvious and immediate usefulness. And when we also educate people in ways that encourage such thought.
I found this an enjoyable and satisfying book. How about you?
In my humble estimation,
ReplyDeletethar seems to be lil' life on earth
(and the band played on).
Better git C.P.R.
(Christ's Public Relations):
I’d looove for you to peruse our 24 blogs!
Lemme first explain something
(my solemn duty, dear, is to serve and honor you
with fundamental blueprints for Civilization’s Psychiatrist):
Why else does a moth fly FROM the night
than to a bold, attractive candle Light??
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PS “It is impossible that anyone should NOT receive all that they have believed and hoped to obtain; it gives Me great pleasure when they hope great things from Me and I will always give them more than they expect”
-our Lord Jesus to Saint Gertrude