A sensor comprised of extraordinarily chilly atoms can detect forces as small as a millionth septillionth of the gravitational force on an apple falling from a tree. It may assist reveal the existence of utterly new forces in the longer term.
All recognized forces stem from 4 elementary ones – gravity, electromagnetism and the sturdy and weak nuclear forces. But makes an attempt to elucidate mysteries of the universe, equivalent to what darkish matter is, usually recommend that there could also be …