Monthly Archives: July 2014

Stephanie Kwolek and the Bullet-proof Vests

Stephanie Kwolek and the Bullet-proof Vests

Stephanie Kwolek (1923 – 2014) Image: Chemical Heritage Foundation On July 31, 1923, American polymer chemist Stephanie Louise Kwolek was born. She is best known for her invention of poly-paraphenylene terephthalamide – better known as Kevlar. Stephanie Kwolek inherited her love for fabrics and sewing from her mother. Before thinking about…
Dorothy Hodgkin and the Structure of Penicilin

Dorothy Hodgkin and the Structure of Penicilin

Dorothy Hodgkin (1910 – 1994) On July 29, 1994, British chemist and Nobel Laureate Dorothy Mary Hodgkin passed away. She advanced the technique of X-ray crystallography, a method used to determine the three-dimensional structures of biomolecules. Among her most influential discoveries are the confirmation of the structure of penicillin. Dorothy Crowfoot’s (late…
Karl Popper and the Philosophy of Science

Karl Popper and the Philosophy of Science

Karl Raimund Popper (1902–1994) On July 28, 1902, Austrian-British philosopher Sir Karl Raimund Popper was born. He is generally regarded as one of the greatest philosophers of science of the 20th century. Popper is known for his rejection of the classical inductivist views on the scientific method, in favour of empirical…
Rosalind Franklin and the Beauty of the DNA Structure

Rosalind Franklin and the Beauty of the DNA Structure

Rosalind Franklin (1920–1958) On July 25, 1920, British biophysicist and X-ray crystallographer Rosalind Elsie Franklin was born. She made the first clear X-ray images of DNA’s structure. Her work was described as the most beautiful X-ray photographs ever taken. Franklin’s ‘Photo 51’ informed Crick and Watson of DNA’s double helix structure for…
The Plays of George Bernard Shaw

The Plays of George Bernard Shaw

George Bernard Shaw (1856–1950) On July 26, 1856, Irish playwright and co-founder of the London School of Economics George Bernard Shaw was born. As a writer, his main talent was for drama, and he wrote more than 60 plays. He is the only person to have been awarded both a Nobel Prize…
Thomas Say and his Love for Beetles

Thomas Say and his Love for Beetles

Eastern Tiger Swallowtail in: American entomology : A Description of the Insects of North America by Thomas Say On July 27, 1787, American self-taught naturalist, entomologist, malacologist, herpetologist and carcinologist Thomas Say was born. A taxonomist, he is widely considered the father of descriptive entomology in the United States. Thomas Say attended Westtown…
Isaac Singer and the Sewing Machine

Isaac Singer and the Sewing Machine

Woman working with singer machine (ca. 1914) Image Source: Library of Congress On July 23, 1875, American inventor, actor, and entrepreneur Isaac Merrit Singer passed away. He made important improvements in the design of the sewing machine and was the founder of the Singer Sewing Machine Company. Isaac Merritt Singer was…
Friedrich Bessel and the Distances of Stars

Friedrich Bessel and the Distances of Stars

Friedrich Wilhelm Bessel (1784-1846) [1] On July 22, 1784, German mathematician and astronomer Friedrich Wilhelm Bessel was born. He is probably best known for his works in mathematics, where he discovered the eponymous Bessel-functions, which are critical for the solution of certain differential equations. Friedrich Wilhelm Bessel was born in…
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