yea? if so whats it called?

i mean like something with a digital output of some kind of number

http://en.wikipedia.org/wiki/Magnetometer

digital compass.

magnetometer

magnetometer

if someone can master magnets, it will be the future

http://en.wikipedia.org/wiki/Magnetic_levitation_train

The future is here, it just needs to be perfected and improved upon.
it's mastering the magnetic fields that will revolutionize travel including and most importantly, space travel.

magnets will revolutionize space travel

wow

no. they are only used to levitate objects, cannot be used to accelerate an object. cannot be used for space travel unless you have something else in mind.

asdf