Energy and Frequency. Planck showed how the energy of a quantum of light is related is related to its frequency. He defined a constant, known as Planckâs constant, which, when multiplied by the frequency of a light quantum, gives its energy.
curiosity noun (INTEREST). B2 [U] an âeager âwish to âknow or âlearn about something: to âarouse/âexcite/âsatisfy someone's curiosity I'm âburning with curiosity-you must âtell me who âwon! She âdecided to âcall her ex-boyfriend out of curiosity.
5. Meaning. If we are going to find a meaningful purpose or calling in life, chances are good we will find it in something that unleashes our natural curiosity and fascination. Indeed, curiosity is the entry point to many of lifeâs greatest sources of meaning and satisfaction: our interests, hobbies and passions.