Space facts and facts about spaces, from the Random Facts shelf.
6 facts on this shelf
Siamese fighting fish must be kept isolated because they will fight, immediately, often to the death. In an experiment, 2
fish were dropped in a lake. Would this be enough space? Were these tiny fish interested in exploring?
No, they immediately started fighting.
Of 200 Anglican priests polled only 68, or 34% could name all Ten Commandments. Half, however, said they believed in space aliens.
Most substances take up less space when frozen than when liquid. Ice from water on the other hand occupies more space than the original liquid water did.
Radio waves are the radiation and detection of a range of frequency of electromagnetic waves. Frequency is the number of wavelengths that pass a particular point in one second and for radio waves the frequency is from 3 kHz to 300 GHz. Radio waves like all electromagnetic waves are able to carry information through space. Radio waves can travel unimpeded through objects like buildings or people but light waves can not. This is because radio waves have a very long wavelength allowing them to pass through objects that have shorter wavelengths like you and me without problem.
Most species of woodpeckers prefer dead trees or "snags," and drill out a space for them to nest. Only the Red-cockaded Woodpecker uses living trees to nest. The Red-cockaded woodpecker is also the only species to live in colonies.
On July 20, 1969 the first manned spacecraft landed on the moon. The Moon was first visited by Soviet spacecraft Luna 2 in 1959. It is the only extraterrestrial body to have been visited by humans. The last time the moon was visited by man was in December of 1972.