The mechanical simplicity of this pull-string controlled most useless machine is delightful. You can see the metal gripper which is reaching up to tug on a light-fixture-style pull chain. This is how ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American You may have seen a flurry of articles this ...

Bumblebees can learn to pull strings for food and pass on the ability to a colony, according to new research. Bumblebees can learn to pull strings for food and pass on the ability to a colony, ...