William Gregor - Encyclopedia.com
William Gregor 1761-1817 English mineralogist famous for discovering titanium. Gregor analyzed a black sand he found in Menacchan, Cornwall. The sand contained iron, manganese, and another substance that Gregor successfully extracted but could not identify. He published his findings in 1791 and proposed the name menacchanine for this new mineral. Martin Klaproth isolated the same element from ...

Hafnium - Encyclopedia.com
Hafnium has been used as an alloying agent for iron, titanium, niobium, and other metals. Finely divided hafnium is pyrophoric and can ignite spontaneously in air.

Zirconium Oxide - Encyclopedia.com
Zirconium is one of the transition metals. The transition metals are the elements found in Rows 4 through 7 and between Groups 2 and 13 in the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. Zirconium is located below titanium, which it resembles, in the periodic table.

Callaway, Ely, Jr. - Encyclopedia.com
Callaway, Ely, Jr. (1919-) The Callaway Golf Company, Inc. Overview Ely Reeves Callaway, Jr. became a famous entrepreneur during the 'Third Act' of his life. Past age sixty, after having made fortunes in two different businesses, textiles and wine-making, his Third Act included creating The Callaway Golf Company, Inc., and manufacturing perhaps the most famous line of golf clubs in the world ...

Cyclotron - Encyclopedia.com
Next, the target bodies are made of high purity silver, aluminum, and titanium and designed with helium-cooled thin foil windows. The two foil windows separate the target material from the high vacuum within the cyclotron.

Tithe War (1830–1838) - Encyclopedia.com
Tithe War (1830–1838) The tithe war was a popular uprising in the southern provinces of Leinster and Munster, with widespread disturbances in Connacht and some in Ulster, against the payment of tithes to the Protestant Established Church. The burden of tithe—theoretically, the tenth part of one's income given in kind or money in support of the church—had long been a complaint in Ireland ...

Lunar Rovers - Encyclopedia.com
Lunar Rovers In forty-five years of spaceflight and exploration, there have only been six rovers: three Apollo mission lunar rovers, two Russian Lunokhods, and one Sojourner rover on Mars. Under current conditions, the need has been for small robotic vehicles rather than a vehicle to transport humans. Source for information on Lunar Rovers: Space Sciences dictionary.

Imperial Chemical Industries Plc - Encyclopedia.com
The new ICI offers a group of world businesses with leading positions in explosives, paints, titanium dioxide, and other versatile materials such as polyurethane, polyester film, and acrylics. Nobel Beginnings: Four Chemical Companies Become One

Hofmann, August Wilhelm Von - Encyclopedia.com
Hofmann, August Wilhelm Von (b. Giessen, Germany, 8 April 1818; d Berlin, Germany, 2 may 1892)organic chemistry [1].Hofmann’s influence, as a teacher and experimentalist, on British and German chemistry was profound.

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