One and a half million people learned to program computers on the ZX81. It was a fully functional microcomputer with a well developed BASIC operating system and a comprehensive manual. But most compelling of all was its selling price – £49.95 if you built it yourself from a kit, or £69.95 fully assembled. Conceived by […]
It is highly likely that wherever you are in the world, if you are gazing through a window, or even staring at your computer screen, you are looking at float glass produced by the Pilkington Method. Float glass is the most widely produced form of glass, with a multitude of commercial applications. Due to both […]
Pulsars are incredibly important. They have a wide range of applications in modern physics and astrophysics. They are used as extremely precise timekeepers, as their pulses are so regular that they can be used to measure time to within a few billionths of a second. They are also used as probes of the interstellar medium […]