The writer is a physicist and an emeritus chief technology officer of the Electromagnetics Technology Division of the Air Force Research Laboratory.

Forty percent are post-graduates focusing on wearables, IOT, chips, electromagnetics and acoustics, all part of the development cycle of phones, tablets, servers, desktops and laptops.

But, it was that course in electromagnetics, which includes the study of electricity, magnetism and light, that had the greatest impact on his professional career.