Science & Technology Q&A for Kids (and others) [Part 131]

Stephen Wolfram hosts a live and unscripted Ask Me Anything about the history of science and technology for all ages. Find the playlist of Q&A's here: https://wolfr.am/youtube-sw-qa

Originally livestreamed at: https://twitch.tv/stephen_wolfram

If you missed the original livestream of this episode, feel free to submit a question you would like Stephen to answer in a future Q&A livestream here: https://wolfr.am/12cczmv5J

00:00 Start stream
00:04 SW starts talking
00:42-15:05 ​Could the expansion of the universe affect biological evolution?
15:15-29:18 ​How much does the sky weigh? How much does the Earth weigh?
29:34-32:24 What would happen if gravity on Earth changed to that of the Moon? What if gravity suddenly got stronger?
32:38-40:31 So a full data memory card vs. a new, empty data memory card of the same kind: will there be a slight difference in weight due to the data filled?
40:49-51:46 Do insects (e.g. ants, mites, etc.)/bacteria have brains? Assuming they do, do they have emotions? Do they feel pain? If they (in the case of bacteria) don't have a brain, what governs their behaviors?
51:55-53:44 How was it discovered that caffeine could energize us? Is it all living things that experience these effects, or is it exclusive to humans?
53:53-1:07:18 If electronics have coils and the brain has coils, should we be more conscious of signals in the air?
1:07:33-1:16:18 Is there a reason for the food likes and dislikes that each person experiences? Can tastebuds be tricked?

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