How to get an approximation of Avogadro or Boltzmann constant through experimental means accessible by an hobbyist ?
I've noticed that whenever I turn the lamp off in my room at night, the lightbulb seems to continue to glow for a minute or so after that. It's not bright though; the only way I even notice it is if ...
Are there any experiments I can do to derive the speed of light with only common household tools?
How can I measure the mass of the Earth at home? How was the mass of the Earth first measured?
Similar to this question: what experiements do you think are impressive for layman adults? I for example like how you can simulate an Einstein Ring with the bottom of a wine glass.
I'm trying to explain elementary mechanics - without the benefits of calculus or even algebra - and struggling. I'd like to find reasonable ways to demonstrate Newton's laws, minimally, and possibly ...