On This Day (February 19)

**MSFixR** · 02-19-2008, 09:05 AM

197 – Septimius Severus defeated usurper Clodius Albinus at the Battle of Lugdunum in present-day Lyon, France, securing full control over the Roman Empire.
1473 - Nicolaus Copernicus, Polish mathematician and astronomer born. (d. 1543) (The first astronomer to formulate a scientifically based heliocentric cosmology that displaced the Earth from the center of the universe.)
1594 – King Sigismund III Vasa of the Polish-Lithuanian Commonwealth was crowned King of Sweden, succeeding his father John III.
1878 - The phonograph is patented by Thomas Edison.
1942 – World War II: In the largest attacks mounted by a foreign power against Australia, more than 240 bombers and fighters of the Imperial Japanese Navy bombed Darwin, Northern Territory.
1978 – Attempting to intervene in a hijacking situation at Larnaca International Airport in Larnaca without authorisation from Cyprus authorities, Egyptian commando forces ended up exchanging gunfire with the Cypriot National Guard.
1986 – The space station Mir of the Soviet space program was launched, establishing the first long-term research station in space.

Picture of the Day

The citric acid cycle is a series of enzyme-catalysed chemical reactions of central importance to all living cells that utilize aerobic respiration. In eukaryotes, the citric acid cycle occurs in the matrix of the mitochondrion. In conjunction with glycolysis and oxidative phosphorylation, it is responsible for the chemical conversion of carbohydrates, lipids and proteins into a usable form of energy, such as ATP, in a process that generates carbon dioxide and water as waste products.

**MissyO** · 02-19-2008, 02:36 PM

Holy crap, when'd this start???? Are we getting daily chemistry lessons? Why wasn't I told about this????? You rock Fixr. Science is sexy!

**MSFixR** · 02-19-2008, 03:39 PM

Quote:

Originally Posted by MissyO

Holy crap, when'd this start???? Are we getting daily chemistry lessons? Why wasn't I told about this????? You rock Fixr. Science is sexy!

I knew that way back in high school. All the girls were amazed at my pyrotechnic displays in the chem lab.

**MissyO** · 02-20-2008, 06:48 AM

^ Fo sure!

02-19-2008, 09:05 AM	#1 (permalink)
MSFixR Science Boy Join Date: Nov 2003 Location: Dante's Inferno, Circle 4 Posts: 8,244 My Profile	On This Day (February 19) 197 – Septimius Severus defeated usurper Clodius Albinus at the Battle of Lugdunum in present-day Lyon, France, securing full control over the Roman Empire. 1473 - Nicolaus Copernicus, Polish mathematician and astronomer born. (d. 1543) (The first astronomer to formulate a scientifically based heliocentric cosmology that displaced the Earth from the center of the universe.) 1594 – King Sigismund III Vasa of the Polish-Lithuanian Commonwealth was crowned King of Sweden, succeeding his father John III. 1878 - The phonograph is patented by Thomas Edison. 1942 – World War II: In the largest attacks mounted by a foreign power against Australia, more than 240 bombers and fighters of the Imperial Japanese Navy bombed Darwin, Northern Territory. 1978 – Attempting to intervene in a hijacking situation at Larnaca International Airport in Larnaca without authorisation from Cyprus authorities, Egyptian commando forces ended up exchanging gunfire with the Cypriot National Guard. 1986 – The space station Mir of the Soviet space program was launched, establishing the first long-term research station in space. Picture of the Day The citric acid cycle is a series of enzyme-catalysed chemical reactions of central importance to all living cells that utilize aerobic respiration. In eukaryotes, the citric acid cycle occurs in the matrix of the mitochondrion. In conjunction with glycolysis and oxidative phosphorylation, it is responsible for the chemical conversion of carbohydrates, lipids and proteins into a usable form of energy, such as ATP, in a process that generates carbon dioxide and water as waste products.

02-19-2008, 02:36 PM	#2 (permalink)
MissyO Perennially Disgruntled Join Date: Jun 2006 Location: Sydney Posts: 4,051 My Profile	Holy crap, when'd this start???? Are we getting daily chemistry lessons? Why wasn't I told about this????? You rock Fixr. Science is sexy!

02-20-2008, 06:48 AM	#4 (permalink)
MissyO Perennially Disgruntled Join Date: Jun 2006 Location: Sydney Posts: 4,051 My Profile	^ Fo sure!

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