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Posts by John Zhau‭

4 posts
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Q&A A bullet that makes the target explode

I'm looking for a bullet that makes the target explode. A bullet filled with explosives and explodes on impact does not suffice. It has to make the target explode somehow. Currently, my only idea ...

6 answers  ·  posted 4y ago by John Zhau‭  ·  last activity 4y ago by John Zhau‭

Question science-fiction
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Rigorous Science Can transistors be made in the stone age? (Spoiler: Dr.Stone)

WARNING: This post contains some spoilers for the anime/manga Dr.Stone. As I'm watching Dr.Stone, I see Senku and the gang trying to make vacuum tubes for their circuits. The vacuum tube is an anc...

1 answer  ·  posted 4y ago by John Zhau‭  ·  last activity 4y ago by John Zhau‭

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Rigorous Science How fast does an antimatter bullet need to move to pierce rather than explode?

The environment is set in (ideal) space with no air for the bullet to interact with. It should encounter nothing until it reaches its target. The bullet is assumed to be a perfect sphere with a di...

9 answers  ·  posted 4y ago by John Zhau‭  ·  last activity 4y ago by John Zhau‭

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Rigorous Science Santa's new delivery service: a... cannon?

Let's say Santa got himself a new toy: a present delivery cannon. With this new cannon, he wants to deliver presents to children by shooting their presents from the cannon into their chimneys. Let'...

3 answers  ·  posted 4y ago by John Zhau‭  ·  last activity 4y ago by John Zhau‭

Question santa-claus