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May 3, 2024 · Deep in the cave, across a hazardous path including deep pits, they have found broken stalagmites more than 1.5 kilometers (0.93 miles) past the entrance, suggesting the presence of humans – around 8,000 years ago. Map showing the location of the cave chamber with broken speleothems. (Delannoy et al., J. Archaeol.
1 day ago · Sir Humphry Davy, English chemist who discovered several chemical elements (including sodium, potassium, calcium, and barium) and compounds, invented the miner’s safety lamp, and became one of the greatest exponents of the scientific method. Learn more about Davy’s life in this article.
- Frederick William Gibbs
17 hours ago · Rosalind Elsie Franklin (25 July 1920 – 16 April 1958) [1] was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. [2] Although her works on coal and viruses were appreciated in her lifetime ...
May 19, 2024 · In total, Lowery and a motley crew of collaborators have discovered 286 artifacts from the site on the island’s southwestern edge. The oldest, they reported, was embedded with charcoal dated to ...
May 17, 2024 · Carl Wilhelm Scheele, German Swedish chemist who independently discovered oxygen, chlorine, and manganese. His most important discovery was of oxygen, which was also discovered independently and simultaneously by the English clergyman and scientist Joseph Priestley.
May 16, 2024 · Vanadium was discovered (1801) by the Spanish mineralogist Andrés Manuel del Río, who named it erythronium but eventually came to believe it was merely impure chromium.
3 days ago · The 1871 periodic table constructed by Dmitri Mendeleev. The periodic table is one of the most potent icons in science, lying at the core of chemistry and embodying the most fundamental principles of the field. The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that ...
