German inventor Klaus Krinner, who created a Christmas tree stand that bears his surname in 1987, was given the humble task ...

Helical piers (aka helical piles, screw piles and ground anchors) are screwed into the soil, instead of being buried or rammed in like concrete piers. Think of helical piers the way you compare ...

The design of the microrobot is another key innovation. It has a screw-shaped body with a helical structure, a cylindrical central tube, and a disk-shaped tail. The helix-shaped structure is ...