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.
The idiom that is used every day curiosity killed the cat is a part of a longer statement, curiosity killed the cat, but satisfaction brought it back. However, adding the later part to the idiom alters its meaning completely. When we were kids, we must have come across old and isolated houses that had no visitors.