Science strides through revolutions, but people often refuse to
accept revolutionary concepts at first place. This describes the
emergence of the Planck's equation. In classical physics, energy
of electromagnetic (EM) radiation was thought to be absorbed or
emitted continuously. It wasn't until late 1900 the German
scientist Max Planck (1858-1947) made a radical assumption in
explaining the black body radiation spectrum, the idea of
discrete energy arose. In Planck's assumption, radiant energy is
emitted in small bursts, known as "quanta". Each of the bursts
called a "quantum" has energy E that depends on the frequency f
of the electromagnetic radiation by the equation: Photo of Max
Planck. Courtesy of AIP Emilio Segre Visual Archives, W.F.
Meggers where h is a fundamental constant of nature, the "Planck
constant". is later found to be true for all EM radiant energy
emitted or absorbed. Planck's equation implies the higher the
frequency of a radiation, the more energetic are its quanta. It
for example explain