Trying to MEASURE something as ELUSIVE AS HAPPINESS may seem impossible, but it makes SOME PEOPLE HAPPY

HUMAN BEINGS HAVE AN OBSESSION WITH MEASUREMENT. KNOW THAT THE average cruising airspeed velocity of a European swallow is 11 metres per second. Human hair diametre ranges from 17 to 181 microns. The sting of a fire ant is 2.5 times less painful than the sting of a paper wasp and 3.3 times less painful than a pepsis wasp’s. And the Earth weighs 4.7 septillion kilograms, of which 379 million kilograms comprise the weight of human eyeballs.