Author Archive

The Doppler Effect

Inventions & Discoveries

It is extremely noticeable when police sirens or ambulance emergency vans rise in pitch as they approach us, and then eventually the pitch lowers down when they go off away from us into the distance.  This is referred to as Doppler effect.  More recently, the Doppler effect took centre-stage as investigators used it to trace the Malaysian aircraft Flight 370′s disappearance. The purpose of this post is to introduce in simple terms the concept of Doppler effect, what it is about and it’s effect, and not to quantify intricate scientific …Read more

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Georg Ohm: Formulated the Ohm’s Law

Georg Ohm: Formulated the Ohm’s Law
Physicists

Georg Ohm was a German physicist famous for Ohm’s Law. He worked on electric currents and acoustics. The unit of electrical resistance was named after him. Georg Simon Ohm (16 March 1787 (89?) – 6 July 1854) was a German physicist born in Erlangen, Brandenburg-Bayreuth. He began his research as a high school teacher, used an electrochemical cell invented by …Read more

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Albert Einstein Remembered

Albert Einstein Remembered
Mathematicians

German-born American physicist, Famous for Relativity Theory, E=MC². Once again, we remember the birthday of  Einstein.  Albert Einstein (March 14, 1879 – April 18, 1955), German-born American, is born on March 14, 1879, in Ulm, Germany. Theoretical physicist and mathematician Einstein is best known for his Theory of Relativity, with his formula insignia E=MC².  He received the 1921 Nobel Prize …Read more

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E. Rutherford: Atomic Theory

E. Rutherford: Atomic Theory
Chemistry

Science Milestone: March 11 Considered the father of nuclear physics, this day on March 11 (1911),  Ernest Rutherford (1871-1937), New-Zealand born British physicist, published his atomic theory describing the structure of the atom for the first time at the Manchester Literary and Philosophical Society. He described the atom as having a central positive nucleus surrounded by negative orbiting electrons. His …Read more

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Arthur Kornberg: DNA and RNA Discoveries

Arthur Kornberg: DNA and RNA Discoveries
Biochemists

Scientist Datebook: March 3 Biochemist Arthur Kornberg, Nobel laureate for DNA and RNA discoveries. Arthur Kornberg specialized in molecular biology. His primary research interests were in biochemistry, especially enzyme chemistry, deoxyribonucleic acid synthesis (DNA replication) and studying the nucleic acids which control heredity in animals, plants, bacteria and viruses. He was co-awarded the Nobel Prize in Physiology or Medicine 1959 for …Read more

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