July 16th – The first test nuclear bomb was detonated on this day in 1945
The test took place at Alamogordo, New Mexico. The explosion produced the power equivalent to approximately 20,000 tons of tri-nitro-toulene (TNT), and left a crater...
July 15th- American nuclear chemist Albert Ghiorso was born on this day in 1915
He co-discovered 12 elements while working at the University of California, Berkeley: americium (Am), curium (Cm), berkelium (Bk), californium (Cf), einsteinium (Es), fermium (Fm), mendelevium...
July 14th – English chemist Sir William Perkin died on this day in 1907
He synthesised the first artificial dyestuff, called mauve or aniline purple, while trying to synthesize quinine from a coal tar chemical for the treatment of malaria....
July 13th- Italian chemist Stanislao Cannizzaro was born on this day in 1826
Italian chemist Stanislao Cannizzaro, known for his theories on atomic weight. He was the first chemist to see the full significance of Avogadro's law. In the...
July 12th- William Ramsay and Morris Travers discovered the element xenon on this day in 1898
The British chemists used a powerful machine that cooled and liquefied air to obtain krypton (Kr). They then repeatedly distilled the krypton until an even...
July 11th-Dutch-American physicist Samuel Abraham Goudsmit was born on this day in 1902
He introduced the concept of electron spin along with George Eugene Uhlenbeck in 1925. This phenomenon explains many aspects of atomic behaviour that cannot be...
July 10th – Dutch scientist Kamerlingh Onnes made liquid helium (He) on this day in 1908
He was the first to liquefy helium, using several precooling stages and the Hampson- Linde cycle based on the Joule-Thompson effect. This way he lowered...
July 9th – Amedeo Avogadro died on this day in 1856
Lorenzo Romano Amedeo Carlo Avogadro was an Italian scientist. His hypothesis – now known as Avogadro’s Law – states that equal volumes of gases at...