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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
More equation answers are up! How are you doing? Tell us here, or on Twitter @GiantChalkboard.

DB: 238; Only 3-digit interstate that doesn’t follow parent interstate naming conventions
DC: 90; Number of the longest US highway
DD: 1942; Year of the first self-sustaining nuclear reaction
DE: 100; Atomic number of fermium
DF: 1946; Year of ENIAC
DG: 17468; Number of vacuum tubes in ENIAC
DH: 88; Weight of the first car phone to the nearest pound
DI: 1949; Year patent no. 2473288 was given to combination table utensil
DJ: 128; Years ago railroads instituted standard time zones in US
DK: 32; Ice melting point in degrees F
DL: 19; Number of parameters in the standard model of particle physics
DM: 1986; Last time we saw Halley’s comet
DN: 2061; Next time we’ll see Halley’s comet
DO: 20,005,000; Transmission frequency of Sputnik 1 in Hz
DP: 2; Constitutional Article establishing Executive branch
DQ: 51; Jurisdictions in the electoral college
DR: 3; votes for DC in the electoral college
DS: 23; Amendment that gave DC those votes
DT: 12; Amendment specifying the system
DU: 44; Numer of US Presidents to date
*Bonus number (DP through DU): 538; Number of electoral college votes
DV: 1969; Year of first human on the moon
DW: 11718; Mission length of Apollo 11 in minutes
DX: 57; Project number where GPS was born
DY: 365; Approximate number of days it takes to travel around the sun
DZ: 11; Lowest master number in one of the earliest attempts to give meanings to numbers
EA: 11; Number of M Theory dimensions
EB: 4; Number of Spacetime dimensions
EC: 1,210,000,000; Number of watts in flux capacitor
ED: 88; :)
EE: 2000; Y2K
EF: 43,112,609; value of p that generates the largest known Mersenne Prime
This afternoon’s set of answers to the equation are up! How do your answers stack up? Any surprises? Tell us here, or on Twitter @GiantChalkboard.

CI: 1897; The year the electron was discovered

CJ: 8981; Length of the Golden Gate Bridge in feet
CK: 101; US highway route that goes over Golden Gate Bridge
CL: 6174; Kaprekar’s Constant

CM: 137; years ago QWERTY was created

CN: 11110010000; 1936 in binary; 1936 is the year of the first programmable computer
CO: 233; 6th Fibonacci Prime

CP: 96; Atomic number of curium
CQ: 24346; Lifespan (in days) of its female namesake

CR: 238,857; Miles from Earth to the moon
CS: 2206; Number of words in the “We Choose the Moon” speech
CT: 32899; Zip code of the Kennedy Space Center
CU: 1; Giant leaps for man kind
CV: 2; Number of crew members on the lunar module
CW: 293; HEK cell line used widely in biology
CX: 8; Sixth number in the Fibonacci sequence
CY: 3,488,372; The approximate number of dollar bills stacked to reach the height of this Wonder of the Modern World

CZ: 8,589,869,056; Sixth perfect number
DA: 8; Planets in the solar system today
Special Thanks to Teacup pigs!!