# Max Karl Ernst Ludwig Planck was / is the German physicist and born on 23 April 1858.

#  He was well known for his discovery of “Energy Quanta”.
# He describe the electromagnetic energy can be emitted only in quantized form i.e.
E = hv (where E is the energy, h is the Planck constant (also known as Planck action quantum and v is frequency)
# He was known for his Planck Constant that is 6.626 x 10 (power of -23 J (Joule))
# He died on 10 October 1947 but yet was / is a legend of all time.