Page 196 - A Life - my Live - my path

My Ariadne’s thread: Science

20.3 Leading minds of the early 20 century
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Like many others, I've become a devoted admirer of Albert
EINSTEIN.

For the record, at the age of 26, in 1905 - an extraordinary
year - EINSTEIN published 4 papers that have gone down in
the history of physics and changed the way we see physics in
general and our world in particular.
Then, in November 1915, he published the theory of "general
relativity", which definitively changed our vision of the
universe.

Back in 1905, he published:
In March

Light is both a "wave" and a "particle”.
He ended a discussion that had lasted more than 30 years
with an explanation of the photoelectric effect.
158
He referred to the particle as a "quanta", which would later
be called a "photon" (a photon of light).
A quantum of light has no mass. Light sometimes acts as a
wave, sometimes as a particle, depending on how it
interacts with matter.
For experts, I recommend learning more about the
“Young's Gap” experiment, which is likely to completely
baffle your Cartesian mind and simplistic vision of the
phenomena of the universe.

158 Refers to the emission of electrons by a material subjected to the action of
light.
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