Education
Born in Philadelphia, Heyl earned his Doctor of Philosophy in physics in 1899 from the University of Pennsylvania.
Born in Philadelphia, Heyl earned his Doctor of Philosophy in physics in 1899 from the University of Pennsylvania.
Foreign several years he taught in high schools in Pennsylvania. In 1910 he joined the physics staff of the Commercial Research Corporation in New New York In 1920 he was employed as a physicist at the National Bureau of Standards in Washington District of Columbia With Lyman J. Briggs, Heyl invented the Heyl–Briggs earth inductor compass.
The compass used a spinning electric coil mounted in an airplane to determine the airplane"s bearing in relation to the Earth"s magnetic field
At the NBS, Heyl worked on a redetermination of Newton"s constant of gravitation using a torsion balance. He retired form the NBS in 1942.
L. South. South. R.
American Physical Society.