Mihajlo Idvorski Pupin

Mihajlo Idvorski Pupin, Ph.D., LL.D.

(Serbian Cyrillic: Михајло Идворски Пупин; 9 October 1858 – 12 March 1935),

Also known as Michael I. Pupin,
was a Serbian American physicist and physical chemist.
Pupin is best known for his numerous patents,
including a means of greatly extending
the range of long-distance telephone communication
by placing loading coils (of wire) at predetermined intervals
along the transmitting wire (known as "pupinization").
Pupin was a founding member of
National Advisory Committee for Aeronautics (NACA)
on March 3, 1915, which later became NASA.