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Puzzling Questions

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  I hope these are on-topic here, even though they are more about
  physics than about math. However, one does not need to learn
  physics now as everthing needed to answer is already given
  in the questions or should be known from high-school I think.

  The answers could be somewhat controversial, but I think that
  there really is one single correct answer. However, it might
  not be accepted as correct by everyone.

  "E = mc^2" does /not/ mean that energy (E) can be converted
  into mass (m), but rather that mass is always conserved.
  Can you see why? ("c" is a constant, the speed of light.)

  A manufacturer of tea bags says on the external packaging [1],
  "Always pour bubbling boiling water over it and let it steep
  for 6 minutes! Only then will you get a safe food product!"
  - Can you see the error in the time requirement of 6 minutes?

  [1] This is a real observation, the original German text reads:
  "Immer mit sprudelnd kochendem Wasser aufgießen und 6 Minuten
  ziehen lassen! Nur so erhältst du ein sicheres Lebensmittel!".

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Puzzling Questions ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-10 08:49 +0000
  Re: Puzzling Questions richard@cogsci.ed.ac.uk (Richard Tobin) - 2026-09-10 10:26 +0000
  Re: Puzzling Questions ram@zedat.fu-berlin.de (Stefan Ram) - 2026-09-17 09:26 +0000
    Re: Puzzling Questions Phil Carmody <pc+usenet@asdf.org> - 2026-09-30 23:33 +0300

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