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Goddard, Robert Hutchings
Pioneered modern rocketry and space flight and founded a whole field of science and engineering.
Goggles
A device with coloured lenses which protect the eyes from harmful radiation during welding and cutting operations.
Gold
A soft metal with a characteristic yellow colour. It is the most malleable and ductile of any element. It is unaffected by air, water, alkalis and acids.
Gold Leaf
Very thin gold sheet made by rolling or hammering gold and used for gilding.
Golden Mean
The proportion of the division of a line so that the smaller part is to the larger part what the larger part is to the whole. This may be applied to the lengths of the sides of a rectangle.
Golden Rectangle
A rectangle whose sides are in the golden ratio.
Goldschmidt Process
The method of obtaining liquid metal by reduction of the oxide with aluminium powder.
Goniometer
Instrument for measuring angles.
Googol
A number equal to 10100.
Googolplex
A number equal to 10googol. Where a googol is 10100.
Gothic
Style employed in Europe during the thirteenth, fourteenth, and fifteenth centuries.
Gouge
A deep scratch.
Governor
A mechanical or electronic device for controlling or limiting the rotational speed of an engine or shaft.
GOx
Abbreviation of Gaseous Oxygen.