How did Max Planck's discovery help people?

Answer:
Photo electric emission was successfully explained by Albert Einstein only because of Max Planck's discovery of quantum concept. Einstein got Nobel prize for the same.
Niel Bohr made his postulates just imitating the concept of quantum mechanics. So he was able to measure the radius of the atom.
His quantum concept has opened the door for uncertainty principle.
First answer by Truefinder. Last edit by Truefinder. Contributor trust: 47 [recommend contributor recommended]. Question popularity: 11 [recommend question].