edwardian: someone belonging to (or as if belonging to) the era of Edward VII
sporting man: someone who leads a merry existence; especially a gambler on the outcome of sporting events
planck's law: (physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is given by Planck's constant