Happy Friday! Here is the last set of answers to the equation and their significance. Anyone 100% correct? Tells us about it here, or on Twitter @GiantChalkboard.

EG: 1979; Year rings on Jupiter discovered

EH: :-)

EI: 65,535; Largest maxint that can be represented by 16 binary digits

EJ: 4; Number of classes of minerals in 1758 edition of Systema Nocturae

EK: 24; Number of classes of plants in 1758 edition of Systema Nocturae

EL: 6; Number of classes of animals in 1758 edition of Systema Nocturae

EM: 5; Number of Korotkoff sounds

EN: 1501; Birth year of 1 of 3 founding fathers of botany

EO: 1489; Birth year of 1 of 3 founding fathers of botany

EP: 1498; Birth year of 1 of 3 founding fathers of botany

EQ: 1843; Year of declaration that the azoic zone does not exist sparks that 20 year debate

ER: 300; Depth in fathoms azoic zone was supposedly located

ES: 47; Number of feet that help make up a knot

ET: 3; Number of inches that help make up a knot

EU: 6; Feet in a fathom

EV: 134,217,728; Sum of numbers in the 27th row of Pascal’s triangle

EW: 90; Original mission length of Spirit Mars Exploration Rover (in days)

EX: 7730.5; Total distance the Spirit Mars Exploration Rover traveled

EY: 1897; The year aspirin was created

EZ: 1; Number of planets we call home

FA: 7 billion; the population of our planet at the end of October, 2011