Science & Technology Q&A for Kids (and others) [Part 136]

Stephen Wolfram hosts a live and unscripted Ask Me Anything about 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
00:36 SW starts talking
00:51-6:03 How is it that animal species all look relatively similar, or at least similar across a breed (ex: dogs, golden retrievers), yet all humans have unique features?​​
6:07-9:45 ​What's your intuition for Euler's number, e?​
9:49-16:11 In the recent Halloween spirit, is there any science behind ghostly appearances?​
16:17-23:15 If an advanced civilization lived on Earth one billion years ago, would there be signs of there existence in today's time?​
23:30-39:00 How does photography work? How are we able to capture an image so easily, whether on film or on a phone screen?​
39:03-57:00 Kind of a similar topic: how do mirrors reflect images, and can we trust these images or do they change our perception?​
57:18-1:11:23 Is there a number like e or pi that instead of being small (under 10) is big (like over 100)? How do these numbers get specific notation/names?​
1:11:24-1:16:17 How many digits of pi can you recite at this moment?​
1:16:28 End stream

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