A collection of perforated pebbles from an archaeological site in Israel may be spindle whorls, representing a key milestone in the development of rotational tools including wheels, according to a new ...

The 20-year-old and his fellow college students drove five hours from civilization to a remote village where they spent long hours digging ditches and mixing concrete to make a bigger dam so rains ...

Imagine a wheelchair equipped with wheels flexible enough to navigate all manner of obstacles from kerbs to humps and even ...