Physics

The age of the universe is approximately 13.77 billion years. This age is considered by measuring the distances and radial velocities of other galaxies, most…

Lise Meitner (1878 – 1968) Austrian-born Swedish nuclear physicist. Born in Vienna, she worked with radiochemist, Otto Hahn. They discovered the element protactinium and studied…

Marie Curie (1867 -1934) was a Polish-born physicist and chemist, working mainly in France, who is famous for her pioneering research on radioactivity. Not only…

Max Karl Ernst Ludwig Planck (1858 – 1947), was a German theoretical physicist who originated quantum theory, which won him the Nobel Prize in Physics…

James Clerk Maxwell (1831 – 1879) was a Scottish theoretical physicist. His theory of electromagnetism united all previously unrelated observations, experiments, and equations of electricity,…

John Dalton (1776 – 1844) was an English chemist, meteorologist and physicist. Later, Thompson, Rutherford Bohr, Schrodinger and many others contributed to our present model…

Tycho Brahe, born Tyge Ottesen Brahe, was a Danish nobleman known for his accurate and comprehensive astronomical and planetary observations. Tycho had published a widely-sold…

Ba sic purpose of this lecture is to present on Johannes Kepler. Kepler’s laws are: Planets travel around the Sun in elliptical orbits with the Sun at one…

General purpose of this lecture is to present on Nicolaus Copernicus. He was first known modern person to propose the Earth circles the Sun. Astronomer Nicolaus Copernicus was…

Main objective of this lecture is to present on Roots of Astronomy. Already in the stone and bronze ages, human cultures realized the cyclic nature of motions…

A space shuttle is a reusable space craft. First used in 1981. They are able to land on an ordinary airfield. The space shuttle did many…

Space exploration is still in infancy. Although we have learned a lot, we still have a lot of questions. The cost of space exploration mandates…