Every object in the universe has its own gravitational pull. Mass determines the strength of the gravitational attraction of each object. Now scientists from the University of Southampton and Europe have announced the success of measuring the gravitational pull of an object the size of half a grain of sand.
A gravitational pull of 30 attonewtons (aN) is produced by a particle weighing 0.43 milligrams. This makes it the lightest object ever to have its gravitational pull measured in history. At the same time bypassing the previous record of particles weighing 90 milligrams. Gravitational pull is measured by floating these particles in a magnetic field and cooling them to a temperature of -273 degrees Celsius. With this attraction of gravity, electromagnetic, temperature and external vibration can be isolated to get an accurate reading.
Why is this breakthrough important for science? The answer is that it opens up the ability to measure gravitational attraction at the quantum level which is expected in solving the search for the theory of everything (theory of everthing) which physicists have been trying to do for over 100 years.