Of what is the molecule of ozone composed?
Three oxygen atoms. Ozone (O2) is a bluish gas, chemically very active and a powerful oxidizing agent.
Petroleum is composed of hundreds of compounds that are different combinations of which two main chemical elements?
Hydrogen and Carbon. It is a natural mixture of hydrocarbons.
Silver foil is often a misnomer – what metal is commonly used as 'silver foil'?
Aluminium, which can be beaten to 0.009 of a millimetre thin. Its specific gravity is 2.70.
What is the different of aluminium and aluminum?
No difference at all.
Name the famous diplomat who proved that lightning is a form of electricity?
Benjamin Franklin.
Name the three men involved in the first voyage to the Moon?
Neil Armstrong, Edwin Aldrin and Michael Collins.
How, correctly, should the Dog Star be termed?
Sirius, located in the constellation Canis Major. It is the brightest star in the heavens. Two constellations are named after the dog, Canis Major and Canis Minor.
Who propounded the laws of planetary motion?
Johannes Kepier (1571-1630) German astronomer.
Which planet has the largest number of moons?
Saturn.
What is another name for an asteroid?
Planetoid or minor planet.
What is an angstrom?
A unit of length equal to 1/10th of a millimicron or 10 millionth of a millimetre.
How long is a nautical mile?
1,853m or 1.85 km. (6,080ft. A regular mile is 5,280 ft.)
Who founded c. 300 B.C., a school of mathematics is Alexandria in ancient Egypt?
Euclid, a Greek mathematician.