age ~79
from Stockton, CA
Newton or Leibniz? This never-ending debate on who discovered calculus...
Archimedes' Principle made EASY! Watch till the end for a 'surprise' t...
In which JB talks about the technological challenge of lifting water w...
Build your own Archimedes screw by following the instructions in this ...
This physics / fluid mechanics video tutorial provides a basic introdu...
handsonscience67... Archimedes Screw Mel shows Carr how water, soil, ...