Mechanical Physics

Regardless of their mass all objects fall to Earth's surface at the same rate. Why does the downward acceleration of gravity not depend on mass?

Nov 27, 2011 – Paul A. Heckert

Just how much water does a large ship need to float? Could, for example, a battleship float in a bathtub? Panama Canal locks provide a good illustration.

Jul 24, 2011 – Paul A. Heckert

The reason drafting, or riding behind another rider, is common in bicycle but not running races results from the physics of air resistance.

Jun 24, 2011 – Paul A. Heckert

How friction from tidal forces affects the Earth and Moon, slowed the Moon's rotation rate until a lunar day equals a month, and slows Earth's rotation.

May 8, 2011 – Paul A. Heckert

A scientific look at the urban myth that tidal forces on amniotic fluid cause more babies to be born during the full Moon.

Apr 13, 2011 – Paul A. Heckert