On 20 July 1969, the lunar module of Apollo 11 touched down on the Moon. The recordings of those minutes, between the crew and mission control in Houston, are some of the most listened-to audio of the twentieth century, and…
Read MoreActive noise cancelling works by listening to the sound around you and playing its opposite, so the two cancel out before they reach your ears. It is best at steady, low noise: engines, air conditioning, the rumble of a train.I…
Read MoreNASA publishes a new image every day, from spacecraft, telescopes and astronauts on the space station, each with a short note on what you are looking at. It is the best daily reminder that the view from here is only…
Read MoreE-ink screens do not glow. They arrange tiny particles of pigment to form the page and then use no power to hold it there, which is why they look like paper and why their batteries last for weeks.A ten-inch e-ink…
Read MoreSunlight looks white, but it is a mixture of every colour. When it enters the atmosphere, it meets molecules of nitrogen and oxygen far smaller than the wavelength of the light itself, and they scatter it in every direction.They do…
Read MoreA 75% keyboard keeps the function row and the arrow keys but drops the number pad and squeezes everything else…
