Search results
Results from the WOW.Com Content Network
Aluminium is soft and light, but it was soon discovered that alloying it with other metals could increase its hardness while preserving its low density. Aluminium alloys found many uses in the late 19th and early 20th centuries.
Charles Martin Hall (December 6, 1863 – December 27, 1914) was an American inventor, businessman, and chemist.He is best known for his invention in 1886 of an inexpensive method for producing aluminium, which became the first metal to attain widespread use since the prehistoric discovery of iron.
Aluminium (or aluminum in North American English) is a chemical element; ... Deville had discovered that aluminium trichloride could be reduced by sodium, ...
Paul Héroult read Henri Sainte-Claire Deville's treatise on aluminium, when he was 15 years old. At that time, aluminium was as expensive as silver and was used mostly for luxury items and jewellery. Héroult wanted to make it cheaper. He succeeded in doing so when he discovered the electrolytic aluminium process in 1886. [2]
In 1827, Friedrich Wöhler refined a process discovered by Hans Christian Ørsted, a Danish chemist, who first produced impure aluminium in 1825. With the newly made Al metal, he established the specific gravity of aluminium in 1845.
Perey discovered it as a decay product of 227 Ac. [182] Francium was the last element to be discovered in nature, rather than synthesized in the lab, although four of the "synthetic" elements that were discovered later (plutonium, neptunium, astatine, and promethium) were eventually found in trace amounts in nature as well. [183]
Alabama has found success in the automotive industry by becoming the No. 1 auto-exporting state, as of 2023, after producing more than 1.1M vehicles.
In 1871, Mendeleev predicted [4] the existence of a yet-undiscovered element he named eka-aluminium (because of its proximity to aluminium in the periodic table). The table below compares the qualities of the element predicted by Mendeleev with actual characteristics of gallium, which was discovered, soon after Mendeleev predicted its existence ...