some famous physicists
TRANSCRIPT
Energy and the Society
Greatest discoveries in Physics
Physics from G. physis, “nature”
Physics is the most fundamental, and the most
quantitative of all sciences
Physicsis the basis oftechnology.
Scienceis a way ofthinking.
Science, technology, and Mathematics are
indispensable partners
Some of the Greatest Scientists
Sir Isaac Newton
Some of the greatest discoveries• Unification of the whole theory
of Mechanics• The discovery that the law of
universal gravitation that govern objects on earth are alike as those that govern the universe
James Clerk Maxwell
Some of the greatest discoveries• Proved that :oelectricity and magnetism cannot
exist in isolationolight is produced by oscillating
electric charges• Determined c (299,792,458m/s)
Albert Einstein
Some of the greatest discoveries• Formulated the special and general
theory of relativity• Find out that mass can be
converted to energy• Explained the shift in the perihelion
of the planet Mercury• Discovered that light can be bent
by a strong gravitational field
Louis de Broglie
Some of the greatest discoveries
Discovered that particles having wavelengths that lead to the wave-particle
dualism for quantum mechanics
James Prescott Joule
Some of the greatest discoveries
Worked on the computation of the
mechanical equivalent of heat showing that the
total energy is conserved
Heinrich Hertz
Some of the greatest discoveries
Through experimentation, he proved that
electromagnetic waves can travel over some distance
through the air
Enrico Fermi
Some of the Greatest scientists
he and his team created the world's first nuclear reactor
in 1942
Michael Faraday
Some of the greatest discoveries• one of the pioneers of modern
electromagnetic theory• laid the foundation for the
identification of light as an electromagnetic phenomenon, and led to the employment of electromagnetic waves in communication.
Energy and the Society
Role of energy and interaction among energy, technology, &
society
Energy, technology, and society• Goal of technology is to control
nature• Continuous search for sources of
energy• Breakthroughs in agriculture• Population growth• Health