Stop Signs Used To Be Yellow
There may be no more important part of road safety than the bright red stop sign, though in the early days, they weren’t red.
Two Tortoises Orbited The Moon Before Humans Did
Apollo 8 brought the first human astronauts to lunar orbit in late 1968, but a few months beforehand, the Soviet Zond 5 mission sent two tortoises (and a few other living things) for a trip around the moon.
Robots Are Trying To Clean Up The Beaches
Summer is beach season, and for those times when people leave litter and other waste behind, there are two separate projects to develop robots to clean up after them.
A Window That Can Keep The Outside Noise Down, Even When It’s Open
A special sound-absorbing window design from a team at the National University of Singapore might let fresh air in without all the extra noise.
When Cows Get Excited, They Tell Each Other About It
A PhD student at the University of Sydney, Alexandra Green, studied a herd of cows for more than five months to study what she called cattle vocal individuality. Cows, it turns out, have a lot to say to each other!
Is It A Tortoise, Or Home Improvement Project?
Two weeks ago, the staff at the Humane Society of San Diego had to figure out how to help a tortoise with a hole in its shell. Veterinarians Daniel Barbour came up with a plan involving a trip to the hardware store.