Giant Chalkboard

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

More answers for you all! Anyone perfect so far? Tell us about it here, or on Twitter @GiantChalkboard.

BK: 174465; Patent number of the telephone
BL: 9; Number of words in the first phone conversation
BM: Even Giant Chalkboards have senses of humor 

BN: 3; Number of Newton’s Laws of Motion
BO: 1687; Year Philosophiae Naturalis Principia Mathematica was published 

BP: 1916; Year Foundation of General Theory of Relativity was published
BQ: 1910; Publication of Principia Mathematica

BR: 8128; Fourth perfect number

BS: 3816188; Molecular weight of the largest known protein

BT: 22; Number of standard amino acids
BU: 120; Number of columns in the Temple of Artemis

BV: 138; Height (in feet) of the first skyscraper
BW: 92; The atomic number of Uranium
BY: 1729; Year the largest comet on record was discovered
BZ: 479,001,600: 12! aka the factorial of the highest number on the Beaufort Scale
CA: 11232; Patent number for bromine extraction
CB: 35; Atomic number of bromine
CC: 1903; Year of the first successful self-propelled, heavier-than-air aircraft takes flight
CD: 605; Weight of the first airplane in pounds
CE: 40; Wingspan of the first airplane to the nearest foot
CF: 6*28*496; Product of the first three perfect numbers
CG: 608,845; Patent number of the Diesel engine

CH: 299,792,458; Speed of light in meters per second

It’s time to reveal more equation answers! How many have you answered correctly? Tell us about it here, or on Twitter @GiantChalkboard.

AB: 500; Dewey Decimal System series for science
AC: 10; Number of main classes in the Dewey Decimal System
AD: 110,000; Number of numbers assigned annually by the Decimal Classification Division of the Library of Congress
AE: 1887; Year of the first library school
AF: 23; Number of revisions of the Dewey Decimal System to date
AG: 1425; Year the first public library founded in England
AH: 1876; Year the Dewey Decimal Classification was patented
AI: 4; Century BCE Marcellinus wrote of destruction of the Library of Alexandria
AJ: 244; Number of steps in the world’s largest Rube Goldberg machine
AK: 1796; Smallpox vaccine tested on humans
AL: 9.58; 100-m dash world record (in seconds)
AM: 17000; CPT series that includes wart removal
AN: 8640; Calculation of ounces of blood/hr that would need to be produced that led to theory of blood circulation
AO: 5; Century BCE Hippocratic Oath created
AP: 2; Number of weeks on vacation for Penicillin to be created
AQ: 8; Atomic number of oxygen
AR: Volume of US Supreme Court Case containing Dent v. West Virginia
AS: 1831; year HMS Beagle departed on its famous voyage
AT: 1859; year On the Origin of Species was published
AU: 30,000,000; Minimum hours it took to complete Stonehenge
AV: 2; Number of circles in Stonehenge
AW: 17; Feller number
AY: 5660; Boiling point of tungsten
AZ/BA: 87; Four score and seven (years ago)
BB: 65537; Largest known Fermat prime
BC: 342; Weight of 1 mol of sucrose
BD: 1093; Number of patents owned by the inventor of the lightbulb
BE: 14; Number of companies the same inventor founded
BF: 6; Number of kids he fathered
BG: 99; Percent perspiration
BH: 7; The same inventor was the youngest of this many kids
BI: 11; His date of birth
BJ: 2; His month of birth
*Bonus Number: 1879; the sum of everything in the parentheses, the year he perfect the incandescent light bulb

Time to check your math! Here is the first portion of answers and their significance. How many did you get right? Tell us about it here, or on Twitter @GiantChalkboard.

A: 2560; Year Pyramid of Giza was completed
B: 755; Length of the side of the Pyramid of Giza
C: 1054; The year supernova that is now Crab Nebula was first observed
D: 1965; The year of the first Nebula Award
E: 1088; The year the first university was founded
F: 60; Base of the Babylonian number system
G: 1215; Year of the Magna Carta
H: 1776; Year of the Declaration of Independence
I: 9,192,631,770; Natural resonance frequency of cesium
J: 8; Number of NBS/NIST-named apparatus, including our current one
K: 20,000,000: Accuracy of current atomic clock is to approx 1 second in this many years
L: 55; Atomic number of cesium
M: 1455; first printing of the Gutenberg Bible
N: 1971; first perfected laser printer (prints 2 pages/second!)
O: 131071; Sixth Mersenne Prime
P: 1492; Year Columbus sailed the ocean blue
Q: 373.15; Water boiling point in Kelvin
R: 100; Water boiling point in Celsius
S: 212; Water boiling point in Fahrenheit
T: 1543; The year “On the Revolutions of Celestial Orbs” published
U: 1632; The year “Dialogue Concerning the Two Chief World Systems” published
V: 760; Weight of the Rosetta Stone in kg
W: 196; Years BC the Rosetta Stone was written
X: 44; Dots in the Morse Code alphabet
Y: 1755; Year of the Johnson dictionary
Z: 6; Number of cells for dots in Braille letters
AA: 65; Last two digits of the year Aspects of the Theory of Syntax was published