Stephen Wolfram Q&A, For Kids (and others) [October 16, 2020]

Stephen Wolfram answers general questions from his viewers about science and technology as part of an unscripted livestream series. Questions include: For a math/science career, what is the most useful subject to study in school excluding math/science? What was your favorite non-science class(subject) in school? - Does a charged battery weigh more than a discharged battery? - How can scientist Measure Atomic number for every element, electron mass and speed? - Is there an accessible book about the history of computation that you would recommend? - If it's true sound can be transmitted more easily in solids compared to gases, why can we hear better through air compared to through walls or glass? - Why are mirrors made with glass? Would a mirror made with a different material have different reflective properties? - What was your first computer Dr. Wolfram? - How long have you known Donald Knuth? - Golf ball have dimples that allow them to move faster. Why cars and planes don't have dimples? - When you say that in philosophy everyone can think about fundamental questions: why is that the case in philosophy but not in physics or maths? why does philosophy not have a similar rigid corpus of theory as "harder science" have? See the full Q&A video playlist: https://wolfr.am/youtube-sw-qa