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- Barrel - Part 1
- Pettit Trees
- Island (sketch)
- Landscape (sketch)
- Blown apart
- Irony
- Girl Sleeping (sketch)
- Red spiders
- Serenity is coming out tomorrow
- Pi Equals
- Barrel - Part 2
- Poisson
- Canyon
- Copyright
- Just Alerting You
- Monty Python — Enough
- What If
- Snapple
- George Clinton
- Ferret
- Kepler
- Barrel - Part 3
- T-Shirts
- Godel, Escher, Kurt Halsey (Long)
- Barrel - Part 4
- Fourier
- Meat Crereals
- Elefino
- Hitler
- Donner
- Barrel - Part 5
- Pillar
- Self-reference
- Flowers
- Sheep
- Scientists
- Hyphen
- Apple Jacks
- Bowl
- Light
- Old Drawing
- Geico
- Red Spiders 2
- Love
- Schrodinger
- Secrets
- Counter - Red Spiders
- Found
- Want
- Penny Arcade
- Malaria
- Secret Worlds
- Hobby
- Science
- Useless
- The Cure
- Wait For Me
- Why Do You Love Me?
- Graduation
- Super Bowl
- Stacey’s Dad
- Valentine - Karnaugh
- Valentine - Heart
- Solar Plexus
- Banter
- Abusive Astronomy
- Nerd Girls
- Five Thirty
- Pillow Talk
- Guitar Hero
- In the Trees
- Classhole
- Zeppelin
- Su Doku
- Curse Levels
- Familiar
- Bored with the Internet
- Garfield
- Iambic Pentameter
- My Other Car
- Attention, shopper
- Frame
- Katamari
- National Language
- Paths
- Digital Rights Management
- Velociraptors
- Escher Bracelet
- Gravitational
- Jacket
- Pwned
- Sunrise
- Jeremy Irons
- Profile Creation Flowchart
- The Sierpinski Penis Game
- Mail
- A Simple Plan
- Fall Apart
- Binary Heart
- Family Circus
- Laser Scope
- Back to the Future
- Moral Relativity
- Find You
- Parallel Univers
- Wright Brothers
- Snakes on a Plane! 2
- M.C. Hammer Slide
- Spoiler Alert
- Clark Gable
- Firefox and Witchcraft - The Connection?
- Baring My Heart
- Riemann-Zeta
- Computational Linguists
- Meerkat
- City
- Pong
- 50 Ways
- Worst Band Name Ever
- Dating Service
- Balloon
- Quirky Girls
- Centrifugal Force
- Blogofractal
- Marketing Interview
- Red Spiders Cometh
- The Fast and the Furious
- dPain over dt
- Content Protection
- Julia Stiles
- Fans
- Music Knowledge
- The Raven
- Myspace
- Substitute
- Science Fair
- Dreams
- Pointers
- I Have Owned Two Electric Skateboards
- Delicious
- Parody Week: Achewood
- Parody Week: Megatokyo
- Parody Week: TFD and Natalie Dee
- Parody Week: A Softer World
- Parody Week: Dinosaur Comics
- Join Myspace
- A Way So Familiar
- Mispronouncing
- Sandwich
- Grownups
- Mario
- Hamster Ball
- Cryptography
- Beliefs
- Search History
- Commented
- Filler Art
- Six Months
- Boombox
- Penny Arcade Parody
- Accident
- Angular Momentum
- Donald Knuth
- Playing Devil's Advocate to Win
- Turn Signals
- Misusing Slang
- Nihilism
- Reverse Euphemisms
- Words that End in GRY
- Turn Back
- String Theory
- Skateboarding is Not a Crime
- Movie Seating
- That's What SHE Said
- Automatic Doors
- Before Sunrise
- Alice and Bob
- Not Really Into Pokemon
- e to the pi times i
- Canada
- Interblag
- Nash
- Snacktime Rules
- Matrix Transform
- Wikifriends
- Console Lines
- The Familiar
- Reload
- Exercise
- IPoD
- Lojban
- Working for Google
- The Perfect Sound
- Penises
- Map of the Internet
- Command Line Fu
- Ninja Turtles
- Perspective
- Right-Hand Rule
- Bill Nye
- Christmas GPS
- YouTube
- Hallucinations
- America
- Candy Button Paper
- Reno Rhymes
- What xkcd Means
- Regular Expressions
- Kayak Kayak
- 90's Flowchart
- Hamster Ball Heist
- Brain
- Ghostbusters Marathon
- The Problem with Wikipedia
- Letting Go
- Romantic Drama Equation
- e to the pi Minus pi
- Nintendo Surgeon
- Blanket Fort
- Philosophy
- Random Number
- Small Talk
- Valentine's Day
- Lisp
- Open Source
- Swingset
- Color Codes
- Resonance
- Graffiti
- Hamiltonian
- Cat Proximity
- Chess Enlightenment
- A New CAPTCHA Approach
- Escape Artist
- Kite
- Collecting Double-Takes
- Keyboards are Disgusting
- Pet Peeve #114
- Blagofaire
- Dream Girl
- Battle Room
- The Difference
- Appropriate Term
- Tabletop Roleplaying
- Floor Tiles
- Labyrinth Puzzle
- Factoring the Time
- Hypotheticals
- Chess Photo
- Snopes
- CD Tray Fight
- Escalators
- Highway Engineer Pranks
- Comic Fragment
- Subjectivity
- Online Communities
- Code Talkers
- Conspiracy Theories
- Clichéd Exchanges
- The Glass Necklace
- Regarding Mussolini
- IN UR REALITY
- CertaintyThe
- Choices: Part 1
- Choices: Part 2
- Choices: Part 3
- Choices: Part 4
- Choices: Part 5
- TCMP
- Merlin
- Powers of One
- Linux User at Best Buy
- Electromagnetic Spectrum
- With Apologies to The Who
- Thoughts
- Fixed Width
- Long Light
- Black Hat Support
- Pickup Lines
- Librarians
- Online Package Tracking
- Organic Fuel
- Projection
- Tape Measure
- Wikipedian Protester
- All Your Base
- NP-Complete
- Elevator
- Alone
- Fucking Blue Shells
- Dignified
- goto
- RTFM
- Bookstore
- DNE
- Tony Hawk
- Lisp Cycles
- Tesla Coil
- Aeris Dies
- Facebook
- Limerick
- Names
- Compiling
- Nighttime Stories
- Rule 34
- Orphaned Projects
- Excessive Quotation
- Interesting Life Interesting Life
- Shopping Teams
- Commitment
- Action Movies
- With Apologies to Robert Frost
- Insomnia
- Dating Pools
- Braille
- Loud Sex
- That Lovin' Feelin'
- Nostalgia
- Engineering Hubris
- 28-Hour Day
- Thighs
- Pix Plz
- Ballmer Peak
- A-Minus-Minus
- Effect an Effect
- Exploits of a Mom
- Eggs
- Turing Test
- Indecision
- Photoshops
- Gyroscopes
- Getting Out of Hand
- Wasteland
- Mattress
- Priorities
- Post Office Showdown
- Future
- Classic
- Fight
- 1337: Part 1
- 1337: Part 2
- 1337: Part 3
- 1337: Part 4
- 1337: Part 5
- Diet Coke+Mentos
- Brick Archway
- Close to You
- Success
- Network
- Trolling
- Far Away
- Python
- Startling
- Couple
- Nerd Sniping
- Files
- Loud Party
- Rock Band
- Writers Strike
- Christmas Back Home
- Blade Runner
- Reset
- Responsible Behavior
- Slides
- Your Mom
- Fandom
- Bass
- Dangers
- Redwall
- Compiler Complaint
- To Be Wanted
- The Data So Far
- Journal
- Pod Bay Doors
- Bug
- Journal 2
- Real Programmers
- Forgetting
- Emoticon
- Mobius Battle
- Trebuchet
- Helping
- The Drake Equation
- How it Works
- Duty Calls
- Advanced Technology
- Fuck Grapefruit
- Keeping Time
- Nightmares
- Anti-Mindvirus
- Anti-Mindvirus
- Ultimate Game
- Kilobyte
- Morning
- The Ring
- Unscientific
- Tap That Ass
- Travelling Salesman Problem
- Important Life Lesson
- Large Hadron Collider
- 1,000 Miles North
- Convincing Pickup Line
- Journal 3
- Venting
- Cheap GPS
- Overqualified
- Electric Skateboard (Double Comic)
- Math Paper
- Techno
- Startled
- New Pet
- Mistranslations
- Restraining Order
- Zealous Autoconfig
- The Man Who Fell Sideways
- Stove Ownership
- Forks and Spoons
- Jealousy
- Making Hash Browns
- A Better Idea
- Finish Line
- Security Holes
- Fortune Cookies
- Geohashing
- Bad Timing
- Starwatching
- Fantasy
- Every Damn Morning
- Delivery
- Journal 4
- Journal 5
- xkcd Goes to the Airport
- Purity
- How it Happened
- SUV
- Internet Argument
- Thinking Ahead
- Road Rage
- Babies
- xkcd Loves the Discovery Channel
- Know Your Vines
- Macgyver Gets Lazy
- I Am Not Good with Boomerangs
- In Popular Culture
- Too Old For This Shit
- Good Morning
- Things Fall Apart
- The Sea
- Impostor
- Mission
- Upcoming Hurricanes
- Rewiring
- Hats
- Cautionary
- Frustration
- Regrets
- Holy Ghost
- Paleontology
- Google Maps
- Freemanic Paracusia
- Voting Machines
- RBA
- Quantum Teleportation
- Moving
- X Girls Y Cups
- Fetishes
- Improvised
- The End is Not for a While
- Aversion Fads
- House of Pancakes
- Still Raw
- Turn-On
- Further Boomerang Difficulties
- One-Sided
- Typewriter
- The Staple Madness
- Tones
- Spore
- Listen to Yourself
- Height (Large)
- Fiction Rule of Thumb
- Flash Games
- Depth
- I am Not a Ninja
- Numerical Sex Positions
- Steal This Comic
- Going West
- Morning Routine
- Twitter
- Scrabble
- Actuarial
- Secretary: Part 1
- Secretary: Part 2
- Secretary: Part 3
- Secretary: Part 4
- Secretary: Part 5
- Scantron
- Election
- Faust 2.0
- Dark Flow
- Terminology
- Legal Hacks
- A Bunch of Rocks
- Theft of the Magi
- Experimentation
- Drapes (READ BIO.)
- Induced Current
- Egg Drop Failure
- Sleet
- Alternate Currency
- Friends
- Simultaneous
- No One Must Know
- Wood Chips
- Marshmallow Gun
- Flow Charts
- 11th Grade
- Cuttlefish
- 2008 Christmas Special
- Google Trends
- Decline
- Party
- I Know You're Listening
- Converting to Metric
- Keynote
- Windows 7
- Sledding Discussion
- I'm An Idiot
- Contingency Plan
- Piano
- Laptop Hell
- Genetic Algorithms
- It Might Be Cool
- Space Elevators
- Ducklings
- Security
- Boyfriend
- Base System
- TED Talk
- Cover-Up
- Sierpinski Valentine
- Pep Talk
- Neutrality Schmeutrality
- Music DRM
- Simple
- Kindle
- Westley's a Dick
- Density
- Etch-a-Sketch
- Etch-a-Sketch
- Pirate Bay
- Not Enough Work
- Two Mirrors
- Alternative Energy Revolution
- Students
- 1000 Times
- No Pun Intended
- Lithium Batteries
- Well
- Parking
- Fermirotica
- Crossbows
- Security Question
- Matrix Revisited
- Urgent Mission
- Well 2
- Borders
- New Car
- Can't Sleep
- Together
- Parental Trolling
- Swine Flu
- Tag Combination
- Packages
- The Race: Part 1
- The Race: Part 2
- The Race: Part 3
- The Race: Part 4
- The Race: Part 5
- Brakes
- CNR
- Unsatisfied
- Outreach
- Mission to Culture
- Crime Scene
- Pep Rally
- Designated Drivers
- Papyrus
- Troll Slayer
- Drama
- Voynich Manuscript
- Period
- Android Girlfriend
- Latitude
- Addiction
- Po*n
- Apocalypse
- Android Boyfriend
- Game Theory
- Overstimulated
- Idiocracy
- Qwertial Aphasia
- Extrapolating
- Cutting Edge
- 2038
- Form
- Tab Explosion
- Sheeple
- Disaster Voyeurism
- Estimation
- Threesome
- Woodpecker
- Avoidance
- Lease
- Understocked
- Asteroid
- Supported Features
- Wings
- Superlative
- Haiku Proof
- Oregon
- Branding
- Collections
- Newton and Leibniz
- Tech Support Cheat Sheet
- Psychic
- Skins
- Time Travel (Logo Change.)
- Anatomy Text
- Suspicion
- Blockbuster Mining
- Date
- Locke and Demosthenes
- Brontosaurus
- Scribblenauts
- The Search
- Lincoln-Douglas
- Tornado Hunter
- Free
- Creepy
- Ohm
- Surgery
- RPS
- Conversations
- Scary
- Fall Foliage
- Static
- Nowhere
- Bag Check
- More Accurate
- So Bad It's Worse
- Nachos
- Climbing
- October 30th
- Movie Narrative Charts
- Orbitals
- Lego
- Sympathy
- Two-Party System
- iPhone or Droid
- Sagan-Man
- Academia vs. Business
- Prudence
- Silent Hammer
- SkiFree
- Pandora
- Experiment
- Spinal Tap Amps
- Stephen and Me
- Suggestions
- The Sun
- Natural Parenting
- Revolutionary
- Abstraction
- Asshole
- Researcher Translation
- Christmas Plans
- December 25th
- Gravity Wells (Huge)
- Force
- Science Montage
- We Get It
- G-Spot
- Admin Mourning
- Dimensional Analysis
- Self-Description
- FIRST Design
- Semicontrolled Demolition
- MicroSD
- Dirty Harry
- Children's Fantasy
- Retro Virus
- Spirit
- Strip Games
- Tensile vs. Shear Strength
- You Hang Up First
- Trimester
- Complexion
- Science Valentine
- Snow Tracking
- Honor Societies
- Principle of Explosion
- Devotion to Duty
- Freedom
- Joshing (announcement!!!)
- S*x Dice
- I Am
- Collatz Conjecture
- Seismograph
- Single Ladies
- GeoIP
- P*rn For Women
- Numbers
- Time Machine
- Furtive
- The Flake Equation
- Brain Worms
- Recipes
- Flatland
- Computer Problems
- Seismic Waves
- Hell
- Literally
- Seat Selection
- Trade Expert
- iPad
- Laser Pointer
- Circuit Diagram
- Desert Island
- HDTV
- Eagle
- Outbreak
- Floor
- Cemetery
- Yogurt
- Incision
- Malamanteau
- The Tell-Tale Beat
- Blogging
- Campfire
- Infrastructures
- Walkthrough
- Dyslexics
- Birth
- Geeks and Nerds
- Worst-Case Scenario
- Study
- Book Burning
- Swimsuit Issue
- Phobia
- Southern Half
- Dependencies
- Interdisciplinary
- Public Opinion
- Toot
- Raptor Fences
- 3x9
- Moria
- DFS
- Analogies
- Workaround
- One Two
- Dilution
- Green Flash
- Temper
- 1996
- War
- All the Girls
- Period Speech
- Frogger
- University Website
- Atheists
- Savannah Ancestry
- Still No Sleep
- Pore Strips
- Scheduling
- Anxiety
- Sample
- Ahead Stop
- Desecration
- I Don't Want Directions
- Falling Asleep
- Open Mic Night
- Exoplanets
- Orbiter
- The Carriage
- Showdown
- Control
- Leaving
- Password Reuse
- Physicists
- Inside Joke
- Conditional Risk
- Bad Ex
- debian-main
- Adjectives
- Stephen Hawking
- Beautiful Dream
- Golden Hammer
- Online Communities 2 (Huge)
- Airfoil
- Pumpkin Carving
- Paradise City
- Tech Support
- Connected
- The Economic Argument
- Los Alamos
- Constructive
- Starlight
- Glass
- One-Liners
- Diode
- Mu
- Applied Math
- Mutual
- Illness
- Five-Minute Comics: Part 1
- Five-Minute Comics: Part 2
- Five-Minute Comics: Part 3
- Guest Week: Jeph Jacques (Questionable Content)
- Guest Week: David Troupes (Buttercup Festival
- Guest Week: Bill Amend (FoxTrot)
- Guest Week: Jeffrey Rowland (Overcompensating)
- Guest Week: Zach Weiner (SMBC)
- My Business Idea
- Positive Attitude
- Arsenic-Based Life
- Genetic Analysis
- Weather Radar
- Tic-Tac-Toe
- Convincing
- Wikileaks
- Tree (Christmas Comic!)
- Sickness (Read Description)
- Coupon Code
- Incident
- Explorers
- Serious
- Audiophiles
- Mark
- Misconceptions
- Good Code
- Modern History
- Dental Nerve
- Stingray Nebula
- 3D
- Complex Conjugate
- World According to Americans
- Na
- Local g
- Consecutive Vowels
- Learning to Cook
- 1999
- Trochee Fixation
- Archimedes
- Milk
- (
- Never Do This
- Wisdom Teeth
- Let Go
- Major in the Universe
- Flying Cars
- Nanobots
- Compass and Straightedge
- Herpetology
- Nolan Chart
- Server Attention Span
- Advertising
- Charity
- Fairy Tales
- FPS Mod
- Time Management
- 2009 Called
- Trapped
- Beauty
- Model Rail
- Lamp
- Headache
- Probability
- Significant
- Pain Rating
- Rogers St.
- Recycling
- Craigslist Apartments
- Future Timeline
- Heaven
- Turtles
- Etymology
- Movie Ages
- Null Hypothesis
- 65 Years
- Progeny
- Teaching Physics
- Marie Curie
- Elevator Inspection
- Chain of Command
- Number Line
- Religions
- Temperature
- Darmok and Jalad
- Extended Mind
- Sports
- Homeownership
- Advertising Discovery
- Ages
- The Cloud
- Worst-Case Shopping
- Permanence
- Magic School Bus
- Manual Override
- Core
- Ice
- Connoisseur
- Unpickable
- Hofstadter
- Google+
- Tween Bromance
- YouTube Parties
- Delivery Notification
- Fight Club
- Strunk and White
- 3D Printer
- Cell Phones
- Time Vulture
- Standards
- Mimic Octopus
- Speculation
- Days of the Week
- Lanes
- CIA
- Tattoo
- Mac/PC
- Missed Connections
- Password Strength
- TornadoGuard
- T-Cells
- Arrow
- Oversight
- Depth Perception
- Juggling
- Empirical
- Hurricane Names
- I'm Sorry
- [PLACEHOLDER EPISODE]
- [PLACEHOLDER EPISODE 2]
- Family Decals
- Investing
- AI
- File Transfer
- Mystery Solved
- Working
- Stud Finder
- 1 to 10
- Chin-Up Bar
- Neutrinos
- Sharing
- Development
- Hotels
- Caroling
- Subliminal
- Eternal Flame
- The Corliss Resolution
- X11
- Dorm Poster
- Elements
- Jet Fuel
- Prairie
- Everything
- Delta-P
- The Important Field
- A Alternative Literature
- November
- MTV Generation
- The General Problem
- Occulting Telescope
- Sail
- Map Projections
- Citogenesis
- Wisdom of the Ancients
- Money
- P*rn Folder
- Set Theory
- Privacy
- Space Launch System
- Percentage Points
- Drinking Fountains
- Potential
- Tradition
- Cryogenics
- Plastic Bags
- Phantom Menace
- Mnemonics
- Brand Identity
- Advent Calendar
- Coinstar
- Making Things Difficult
- Wait Wait
- 2012
- Cougars
- 1000 Comics
- AAAAAA
- Game AIs
- Adam and Eve
- Batman
- SOPA
- Sloppier Than Fiction
- Sustainable
- Suckville
- Sigh
- Etymology-Man
- Baby Names
- Wrong Superhero
- Wake Up Sheeple
- Car Problems
- Kerning
- Valentine Dilemma
- Backward in Time
- Good Cop, Dadaist Cop
- First Post
- Orion Nebula
- Business Plan
- So It Has Come To This
- Late-Night PBS
- Error Code
- Tumblr
- Compare and Contrast
- Pickup Artist
- Communication
- Drawing Stars
- Keyed
- s/keyboard/leopard/
- Networking
- Formal Logic
- Share Buttons
- Cadbury Eggs
- Reviews
- Umwelt (1 Year Anniversary Comic)
- Fountain
- RuBisCO
- Lakes and Oceans
- Whites of Their Eyes
- Never
- Ablogalypse
- Romney Quiz
- Constraints
- Skynet
- Approximations
- Emotion
- Bookshelf
- Forgot Algebra
- Visited
- Every Major's Terrible
- Ten Thousand
- The bacon
- Kickstarter
- Felidae
- Klout
- Old-Timers
- Bel-Air
- Crowdsourcing
- EST
- Budget News
- Kill Hitler
- Front Door
- Shoes
- Laundry
- Pressures
- Swiftkey
- Alphabet
- Words for Small Sets
- Exoplanets
- Seventies
- Weekend
- Moon Landing
- Warning
- Groundhog Day
- Home Organization
- Knights
- United Shapes
- Visual Field
- Argument Victory
- Geology
- Writing Styles
- Server Problem
- ContextBot
- Eyelash Wish Log
- Cirith Ungol
- Five Years
- Internal Monologue
- Formal Languages
- Curiosity
- Michael Phelps
- Forget
- Interview
- Crazy Straws
- Clinically Studied Ingredient
- A Hypochondriac's Nightmare
- Star Ratings
- Tuesdays
- Vows
- Sketchiness
- Fastest-Growing
- Nine
- Feathers
- License Plate
- ADD
- Sports Cheat Sheet
- Cautionary Ghost
- Refrigerator
- Click and Drag
- Premiere
- Think Logically
- Killed in Action
- Metallurgy
- Sky
- Traffic Lights
Creator
Two tips: 1) 8675309 is not just prime, it's a twin prime, and 2) if you ever find yourself raising log(anything)^e or taking the pi-th root of anything, set down the marker and back away from the whiteboard; something has gone horribly wrong. Lots of emails mention the physicist favorite, 1 year = pi x 10^7 seconds. 75^4 is a hair more accurate, but it's hard to top 3,141,592's elegance
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