Clamp the stand to the table using C-clamps. Attach the pivot screw to the pendulum stand. Mount the pendulum at any of the holes. Secure the mounting using a wingnut. Script Raise the metal pendulum ...

The experiment was undertaken in connection with Mr. Darwin's investigation of the geological activity of earthworms. There are two stout metal rods, one of iron and the other of copper.

Charles Sanders Peirce, a practicing scientist and proponent of philosophical pragmatism, began the gravity program of the U.S. Coast and Geodetic Survey in the early 1870s, at a time when his father ...