Seven is the largest single digit prime number and a Mersenne prime. It is the number of planets in ancient Greek astronomy and the number of days in the astrological week, named after those planets. Isaac Newton decided to give the rainbow seven colours to match the seven notes of the major scale. Albrecht […]
Science, space, discovery, history, romance, beauty….
In recent days the science sections of the media have been full of the successful entering of orbit around Jupiter by the NASA probe Juno after its five-year, 2.8 billion kilometre journey from the Earth. Many of the reports also talk about the so-called Galilean moons, Jupiter’s four largest moons (there are currently 67 known […]