Polyester is a plastic that was invented in the UK back in the 1940s, and is considered as one of the greatest man-made inventions. It is a long- chain synthetic polymer consisting at least 85% by weight ester and terephthalic acid.
Lawrencium was discovered by four American scientists, Robert M. Latimer, Almon E. Larsh, Torbjørn Sikkeland and Albert Ghiorso in 1961 at the Lawrence Radiation Laboratory in California.
By G.P. Thomas
17 Dec 2012
With an aim to discover the missing noble gases other than argon and helium in the periodic table Morris M. Travers, an English chemist and Sir William Ramsay, a Scottish chemist studied liquefied air in 1898.
By G.P. Thomas
17 Dec 2012
Aluminum is a silvery white metal and is insoluble in water under normal circumstances. After oxygen and silicon, aluminum is the third most abundant metal and in the earth’s crust it is the most abundant.
Georges Urbain, Charles James and Carl Auer von Welsbach independently discovered lutetium from ytterbium oxide. In 1907, French chemist Georges Urbain separated lutetium from ytterbia in Paris.
By G.P. Thomas
12 Dec 2012
Pierre-Jules-César Janssen, a French astronomer first observed the yellow line spectrum during the solar eclipse in 1868.
In 1940, three chemists named Dale R. Corson, Kenneth R. Mackenzie and Emilio Segre at the University of California found an evidence for the existence of an unknown element at the end of an experiment of bombardment of bismuth isotope with alpha particles using cyclotron.
Argon was discovered by a Scottish chemist, Sir William Ramsay and an English chemist, Lord Rayleigh in 1894.
By G.P. Thomas
12 Dec 2012
Air carbon arc cutting is a process of removing metal by means of heat generated from a carbon arc. This process employs a carbon/graphite electrode, compressed air and a standard power source.
By G.P. Thomas
10 Dec 2012
Acrylic resins include thermosetting or thermoplastic plastic substances obtained from methacrylic acid, acrylic acid or other related compounds. These resins are extensively used in mobile telephones, television screens, furniture, in domestic paints and these are also mainly used in aquariums.