Albert Einstein was a scientific genius who changed the way
we view our universe. In 1905, he unified space and time in one mathematical
description. Ten years he proposed a complete theory of relativity that
explained how the universe works, relating mass and energy in his famous
equation
. Many people doubted his theories, but
later investigation has since proved Einstein’s theories to have been correct.
As well as transforming the science of Physics, Einstein’s work paved the way
for the creation of nuclear weapons.
In early 1900s, Einstein developed the
Special Theory of Relativity. This says that time is relative: it passes
differently for individuals, depending on how fast or slowly they move. The
faster anything travels, the slower time seems to pass. If one person travels
into space close to speed of light and another person stays on earth, time
passes slower for the person in space. On their return the person on the earth
will be older.
Einstein also explained the General Theory
of Relativity that explained gravity and the nature of space. He explained that
as light travels the shortest path through space, when it bends space must be
curved. Planets that travel around the Sun are thus following as straight a
path as possible through curved space.
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