A compound-complex sentence combines the compound and the complex sentence. It contains two or more complete sentences joined by one or more of the following words: for, and, nor, but, or, yet, so, and at least one incomplete sentence.
Max Karl Ernst Ludwig Planck, FRS[2] (/plÉËÅk/;[3] 23 April 1858 â 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.[4]
Planck constant. The Planck constant (Planck's constant) links the amount of energy a photon carries with the frequency of its electromagnetic wave. It is named after the physicist Max Planck. It is an important quantity in quantum physics. The Planck constant has dimensions of physical action: energy multiplied by time, or momentum multiplied by distance.