What was the Ptolemaic System?

The Ptolemaic System was a scheme devised by Ptolemy (an ancient Greek astronomer, 100-168AD). Ptolemy proposed a system  which placed the earth directly at the center of the universe, so that the Sun, Moon and all the other planets would all orbit around the Earth. However, Ptolemy soon discovered that the movement of the planets…

Who was Rosalind Franklin?

Rosalind Franklin was a scientist who contributed greatly to her field, and achieved much during her time. Some of her most notable achievements include her contributions to discovering the structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. Franklin was born and raised in London, where she received a great education, and…

Who wrote the first computer program?

The first functional computer program was written by an admiral of the United States Navy, Grace Murray Hopper (1906-1992). Hopper wrote the program for the Mark 1 computer (first developed in 1944), the program was the first automatic calculator. Hopper is also famously known for coining the the term “bug” when referring to computer program…

What is Plato’s “Theory of Ideas”?

The theory of ideas is Plato’s (A Greek Philosopher) expression of his belief of the life forms that exist beyond the material realm and are unchanging- as they never come into existence, change, or pass out of existence. According to Plato, these ideas are the objects of knowledge. Furthermore, Plato stated that the body which…

What was the Camp David Accords?

In 1979, a peace treaty was made between Israel and Egypt and was known as the “Camp David Accords”. The treaty was called this because the US President Jimmy Carter had met with Egypt’s Anwar Sadat and Israel’s Menachem Begin at the Presidential retreat which was held at Camp David in Maryland. The treaty was…

Who was Eddie Mabo?

Edward “Eddie” Koiki Mabo was a Meriam (from the island of Mer, located in the Torres Strait) man  who played an important role in a land rights case in the High Court of Australia, which is now referred to as the ‘Mabo Case’. Eddie Mabo was born on the 29th of June, 1936, on the…

What was the Bronze Age?

The Bronze age lasted from 3300 B.C. to 2500 B.C. The Bronze Age was the period of human culture in which where mankind began using bronze metal to make various objects- predominantly tools. The Bronze Age had began after the end of the Neolithic Age (an age that was present in various cultures in Eurasia…

What caused the Chernobyl Nuclear Disaster?

The Chernobyl nuclear accident happened in April, 1986 and it is considered as the world’s worst nuclear power plant disaster. The incident at Chernobyl was caused by explosions at the Soviet power plant, this caused the sudden surge of radioactive clouds across most of northern Europe. The incident began on Saturday the 26th of April…

What is Maxwell’s demon?

Often when devising laws, physicist test them by performing a number of various experiments. Sometimes scientists prefer to use thought experiments (experiments that are carried out in though alone) to test an idea. James Clerk Maxwell (a 19th century physicist) came up with a thought experiment which tested the second law of thermodynamics. Maxwell wondered…

Why did the US forces fail in Vietnam?

The Vietnam war started in 1955 on the 1st of November and ended on the 30th of April in 1975, lasting 19 years and 180 days. During the war, the strength of the US forces was numbered at 536100. By the end of the war 58315 US soldiers had been killed in action and a further…