#giantchalkboard

[dhaniaiman]

What do yo wish you had the courage to do? 🙏🏼 #giantchalkboard #courage #instavideo #dmv #reston #wiehle #virginia #virginiaisforlovers

[giantchalkboard-blog]

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

[giantchalkboard-blog]

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

[giantchalkboard-blog]

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

[giantchalkboard-blog]

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

[giantchalkboard-blog]

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

[giantchalkboard-blog]

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

[giantchalkboard-blog]

How much of my equation were you able to solve? Now, you'll be able to find out :) Over the next week, we'll break down each element within the equation and explain its significance. As always, please join the conversation here, or on Twitter @GiantChalkboard.