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! 2021-01-17
    * 16:25 RecursionRevisited
! 2021-01-15
    * 11:45 DoubleDoubleDivisionAlgorithm
! 2021-01-14
    * 22:25 SandBox
    * 22:24 ContinuityConcerns
    * 22:24 ColinsBlog
! 2021-01-10
    * 16:45 WhenTheTextAndHtmlDisagree
    * 16:25 CountingCarbonCalories
    * 16:25 TheParityOfZero
    * 16:05 VerticesRequiredForCycles
! ... and earlier
  * 2020-12-21
    * WhyIsItLovely
  * 2020-12-12
    * ThingsToSuggest
  * 2020-11-27
    * GatherTown
      / SquareRootByLongDivision
      / OtherPeople
      / ReflexActions
      / NeilWalker
  * 2020-08-24
    * BriefBiography
      / TheBalladOfBunter
  * 2020-07-31
    * LimitedAudienceJokes
  * 2020-07-26
    * InfiniteRamseyTheorem
  * 2020-07-16
    * NewScientistOnMusicalSquares
      / MusicalSquares
      / RonGraham
  * 2020-07-15
    * MeetingRonGraham
  * 2020-07-12
    * GreybeardStories
      / SignalReflection
  * 2020-07-10
    * ExploringConnectionsBetweenCryptoSystems
  * 2020-07-05
    * AnalogiesNotConsideredHarmful
  * 2020-07
    * TwitterReplyVsQuoteTweet
  * 2020-06
    * TheBlackTeam
      / RandomNotes
      / LaptopPurchaseAdviceReceived
      / ProofsToMakeYouGoWOW
      / BlowUpYourAbilityBalloon
      / BloggingAndNoteTaking
      / ThingIMightBlogAbout
  * 2020-05
    * ImpossibleToTranslate
      / ColinsBlogBefore2007
      / AFactletForAll
      / AnatomyOfAHit
      / MartinGardner
      / SellYourselfSellYourWork
      / RandomWritings
      / AllTheLetters
      / ColinsBlog2008
      / BeingSlowToCriticise
      / Software
      / PerceptionOfSpace
      / StateMachineInRealLife
      / CoNeutron
      / JourneyingHomeThroughStormDennis
      / CoxeterOnceNerdSnipedConway
  * 2020-04
    * NotAlwaysYourFault
      / ParallelogramPuzzle
      / RememberingConway
      / BackOfTheEnvelopeCOVID19
  * 2020-03
    * RememberingCompanies
      / AxiomOfChoice
      / APointAgainstTheAxiomOfChoice
      / ScienceBasedQuotations
      / InDefenseOfTheAxiomOfChoice
      / ThePointOfTheBanachTarskiTheorem
      / SpeakingEngagements
      / TaggedAsMaths
  * 2020-02
    * EarthRadiusRefined
      / VolumeOfASphere
      / TaggedAsStory
      / BigOhAndRelations
      / LatitudeCorrection
      / TheRadiusOfTheEarth
      / RadiusOfTheEarthPartTwo
  * 2020-01
    * ConsideringASphere
  * 2019-12
    * VideoLinks
      / MathematicalRelations
      / JugglingTalkFeedback
      / IntroducingBigOh
  * 2019-11
    * TemporaryWorkSpace
  * 2019-10
    * ConstantDifferences
      / FourPointsTwoDistancesProof
      / AlgorithmsAndSizesOfInstances
      / IntroducingTimeComplexity
  * 2019-09
    * TheLinearFrog
      / ANonMathematicianAtMathsJam
      / SeventyVersusOneHundredRevisited
  * 2019-08
    * Topology
      / HowTheFarragoWorks
      / SeventyVersusOneHundred
      / EmergingEExpanded
      / PowersOfTwoInLexOrder
  * 2019-07
    * ThePaymentDance
      / RageInducingSystemImplementation
      / TheBookIsNotAlwaysRight
      / MathsInATwist
  * 2019-06
    * TalkRequestForm
      / EmergingE
      / ArrangingATalk
      / ArrangingATalkPartII
      / JugglingTalkRequirements
      / WaitingInVain
  * 2019-05
    * NonRepeatingDecimals
      / ElwynBerlekampHasLeftUs
      / RationalRepeats
      / CompilingCryptoConnections
      / WorkInProgress
      / QuestionsToAskOfRandomPeople
  * 2019-04
    * TheTrapeziumConundrum
      / CountriesWhereIHaveSpoken
      / RootCauseAnalysisAndThePhotocopierQuestion
      / ProgrammingEpigramsFromPerlis
      / TheUpDownTides
  * 2019-03
    * TheForeAftTide
      / ThisWayOrThat
      / TheSidewaysTide
      / WrappingUpWrappingUpTheEarth
      / TheOtherWrappingTheEarthProblem
      / TheBirthdayParadox
      / FindingPerrinPseudoPrimes_Part1
      / TheAntAndTheRubberBand
  * 2019-02
    * TrackingAnItemOnHackerNews
      / TwoEqualsFour
      / WrappingTheEarth
      / BashInitialisationFiles
      / TheRingOfSteel
      / RopeAroundTheEarthRefined
      / RoundingUpTheRopes
      / OtherOtherOtherRopeAroundTheEarth
  * 2019-01
    * TheOtherRopeAroundTheEarth
      / TalksInSpaceTime
      / ElementaryEstimates
      / GettingStartedInInfoSec
      / AMirrorCopied
      / OneOfMyFavouritePuzzles
      / JustGiveMeTheAnswer
  * 2018-12
    * SoftwareChecklist
  * 2018-10
    * TaggedAsEducation
      / MoreMusingOnPollardRho
  * 2018-09
    * MathsJam
      / GoArticle
      / IdleThoughtsAboutPollardRho
      / RandomEratosthenes
      / Infinity
      / WhenOptimisingCodeMeasure
      / TaggedAsSoftware
      / ADogCalledMixture
  * 2018-08
    * AnotherPayPalScam
      / MastodonResources
      / GenericAdviceForWritingAThesis
      / NotIfYouHurry
      / LipsonShiuTest
      / WhyTopPostingHasWon
  * 2018-06
    * UnexpectedInteractionOfFeatures
      / MathematicsMasterclass
      / ArchimedesHatBoxTheorem
      / SolipsysPrivacyPolicy
      / MasterClasses
  * 2018-05
    * SpamGraphs
      / ToLinkOrNotToLink
      / ResourcesToLearnAboutMaths
      / PokingTheDustyCorners
      / JustTeachMyChildTheMaths
  * 2018-04
    * RandomFactlets
  * 2018-03
    * ResourcesToLearnMaths
      / LinksToChase
      / AnOddityInTennis
      / MathematicsTalk
  * 2018-02
    * NotASpectatorSport
      / SpeakingAtThe2017MathsJam
      / KleinBottle
      / Koenigsberg
  * 2018-01
    * RandomPhysicsQuestion
      / SomeUsefulLinks
      / HeavensAbove
      / SoftwareVideos
      / GeneralResources
      / TaggedAsResource
      / TaggedAsDump
  * 2017-12
    * CantorFlipsACoin
      / MathsInspiration
      / LeftTruncatablePrime
      / TestedAsINTJ
  * 2017-11
    * TheMutilatedChessboardRevisited
      / SieveOfEratosthenesInPython
      / EnigamiPuzzlesAndGames
  * 2017-10
    * SpeakingEngagementsMap
      / TheDoctorAndTheLawyer
      / LearningLanguages
      / TheFourPointsPuzzle
      / PaulErdos
      / ColinAndRob
      / AdviceForStartups
      / ThinkingAboutMastodon
      / NapkinRingVersusSphericalCap
  * 2017-09
    * GrepTimingAnomaly
      / CantorVisitsHilbertsHotel
      / BallsInBarrels
      / UnderstandingNaturalLanguageIsHard
      / ThisWorksToCureMyHiccoughs
      / PerhapsWeSavedOne
      / FestivalOfTheSpokenNerd
  * 2017-08
    * AllegriStringQuartetPersonnel
      / OS_HW_Processor
      / ReturningHomeFromMOVES
      / TryingToSaveNimrod
  * 2017-07
    * RedPriestConcertSchedule
      / TimeFunctions
      / StartingInInfoSec
      / TheIndependenceGame
      / TheRadusOfTheEarth
  * 2017-06
    * MultipleChoiceProbabilityPuzzle
      / Personal
      / AFLFootyTips
      / DisappearingTrainsOnVirgin
      / VirginTrainTicketSearchOddities
      / MoebiusStrip
      / RevisitingTheAnt
      / SpikeySpheres
      / TheDoodleTheorem
      / AnotherProofOfTheDoodleTheorem
      / GraphThreeColouring
      / TaggedAsPuzzles
      / EllipticCurve
      / BlogTopics
      / PatternsFailProofsPrevail
      / CryptoResources
      / LojbanLanguage
      / ResourcesToLearnALanguage
      / TaggedAsLanguage
      / DistanceToTheMoon
      / JugglingTalk
      / MaritimeMaths
      / FarragoTaggingSystem
      / PatternsFail
      / BiggerThanInfinity
      / TaggedAsTalkDescription
      / TaggedAsJuggling
      / TaggedAsSecurity
      / PasswordBestPractices
      / 441
      / FakeBox
  * 2017-05
    * PuzzleWorldVsCryptoWorld
      / TheStoryOfBolero
      / RachelsRamblings
      / VilaniAndDusinberre
      / ColinsMathematicalAncestry
  * 2017-04
    * ZeroFactorial
      / OptionsForPayment
      / PlatformZero
      / AMatterOfConvention
      / FacebookFakeNews
      / MemorisingTheTube
      / ThinkingAboutRecursion
      / MilesPerGallon
      / SplitTickets
  * 2017-02
    * MathsTopicLinks
  * 2017-01
    * WhatIsJuggling
      / ResoursesToLearnALanguage
  * 2016-12
    * WhatWouldYouRecommendToABright14YearOld
      / AnUnexpectedFraction
      / TheForgivingUserInterface
  * 2016-11
    * MathsMagazines
      / SurprisinglyQuick
      / InsideThrow
  * 2016-10
    * WhenObviousIsNotObvious
      / RantsByJoSibley
  * 2016-09
    * TravelLinks
      / SteveWilliamson
      / AnInterestingFraction
      / YouHaveToAdmireTheirOptimism
      / AnUnexpectedQuestion
      / RepresentativesMatter
      / TheOtherOtherRopeAroundTheEarth
      / BooksForYoungerReaders
  * 2016-08
    * PossibleTopicsForTalks
  * 2016-07
    * PythagorasByIncircle
  * 2016-06
    * APuzzleAboutPuzzles
      / GrumpyOldMenOnTheTrains
      / ABrokenJourney
      / PiratesOfTheBaroque
  * 2016-05
    * HowNotToDoTwitter
      / UnderstandingTensorProducts
      / Calculating52FactorialByHand
      / JugglingTalkSummary
      / PuzzlesThatSoundImpossible
      / RandomQuotations
  * 2016-04
    * IntoTheDragonsDen
      / StackingBlocks
  * 2016-02
    * FromAetherToReader
      / GiantsWhoHaveLeftUs
  * 2016-01
    * ResourcesForLatex
      / ArticlesToStudy
      / TrainStationLocations
      / LondonMidlandStations
      / DissectingACircle
      / DissectingASquarePart2
      / WrappingUpSquareDissection
      / DissectingASquare
      / SmallThingsMightNotBeSoSmall
      / ThankYouForYourComment
      / EulerCycle
  * 2015-12
    * FactoringViaGraphThreeColouring
      / BeCarefulWhatYouSay
  * 2015-10
    * SupposeWeHaveAnAlgorithmForAnNPCProblem
      / QuestionAndAnswer
      / TheMutilatedChessboard
  * 2015-09
    * PreBlogNotes
  * 2015-08
    * OneLiners
      / PhotocopyAMirror
      / MathematicianInResidence
      / PureMaths
      / WhyNotationMatters
  * 2015-07
    * JugglingPatterInNorwegian
      / ChallengeQuestion
  * 2015-06
    * FastPerrinTest
      / OddPages
      / TheDyingArtOfTheInsult
      / RememberingChristopherHogwood
      / PotentialThingsToMemorise
      / HuntTheBug
  * 2015-05
    * MetaPages
      / ProvokingAMathJaxBug
      / PovokingAMathJaxBug
      / MathJax
      / RussianPeasantMultiplication
      / FindingPerrinPseudoPrimes_Part2
      / TheUnwiseUpdate
      / HackerNewsUserAges
  * 2015-04
    * JugglingImages
      / JugglingImagesFull
      / ThereIsNoTimeForThis
      / LearningTimesTables
      / PublicallySharingLinks
  * 2015-03
    * TheDevilsChessboard
  * 2014-12
    * DiagrammingMathsTopics
      / GracefulDegradation
      / Contact
      / TwoAndAHalfMen
  * 2014-11
    * OnTheRack
      / HeilmeiersCatechism
      / DealWithThisSoon
      / ThoughtsAboutAlgebra
      / PatternsAndPredictions
      / CurrentTaskList
  * 2014-08
    * EssaysInPhilosophy
      / MachineThought
      / GraphTheory
      / MyUndergraduateDegree
      / IsOmniscienceCompatibleWithImmutability
      / TheEvilGeniusVsTheCogito
      / FaceFlowFailure
      / HelenArney
      / RandomRant
      / BeyondTheBoundary
  * 2014-07
    * AMinorMystery
  * 2014-06
    * ErdosNumber
  * 2014-05
    * OtherMathWebSites
      / FillInTheGaps
      / NASASpaceCrews
  * 2014-04
    * index
      / Mathematics
      / Juggling
      / ColinWright
      / TooMuchTerminology
      / TalksGivenIn2012
      / TalksGivenIn2010
      / TalksGivenIn2009
      / TalksGivenIn2008
      / TalksGivenIn2007
      / TalksGivenIn2006
      / ColinsBlog2010
      / EntryPage
      / TalkRequirements
      / SiteSwap
      / BriefBites
  * 2014-03
    * TrainTravel
  * 2014-02
    * JimAlKhalili
  * 2014-01
    * InitialForaysIntoScrapingHackerNews
  * 2013-12
    * EveryLanguageFixesSomething
      / MillenniumProblems
  * 2013-10
    * BenSparks
  * 2013-06
    * ProjectIdeas
      / GrahamMatthews
      / GrindonCartshed
      / LakelandBirdOfPreyCentre
  * 2013-04
    * RedPriestConcerts_2010
      / RedPriestConcerts_2011
      / RedPriest
  * 2013-03
    * ReadingList
      / AnneLearnsToRecruit
      / TheUserInterface
  * 2012-12
    * TestPage
  * 2012-10
    * NeilArmstrong
  * 2012-09
    * TalksGivenIn2011
  * 2012-06
    * RoyalInstitution
      / TransitOfVenus
  * 2012-05
    * CurrentlyOnLoan
      / JugglingTalkRequestForm
      / DamianWhiteley
  * 2012-03
    * PaulGrahamEssays
      / PaulGrahamEssaysRanking
  * 2012-02
    * PenzbaStagingArea
      / TimeLoggingSystems
      / IrrationalsExist
      / JugglingNotation
  * 2011-12
    * CircleTheorems
      / WithdrawingFromHackerNews
      / TheLostPropertyOffice
      / SettingUpRSS
      / DoYouNourishOrTarnish
      / DecisionTreesInGames
      / DecisionTreeForTennis
      / BinarySearchReconsidered
  * 2011-07
    * LearningToUnicycle
      / NadiaBaker
  * 2011-05
    * JamesGrime
  * 2011-04
    * DeleteThisPageSoon
      / AboutThisSite
      / ColinsBlog2007
      / ColinsBlog2009
  * 2011-03
    * SpeakingVisitDetailsForm
      / OtherSpeakers
      / DavidAcheson
      / MarkLewney
  * 2011-02
    * LogicAndMathematicsOverview
      / SpeakingVisitCompleted
  * 2011-01
    * RawSpamCount
      / TheParableOfTheToaster
      / KillingBugs
      / WorseOffDespiteLeading
      / LogicalImplication
      / MyNewBlackberry
  * 2010-12
    * ProgrammingPackagesAndTools
      / EnigmaProjectBookings
      / TheSalemWitchesPuzzle
  * 2010-11
    * SimonSingh
      / AllLinks
      / QuestionExploreDiscover
  * 2010-10
    * LaunchInEightSteps
  * 2010-09
    * TheBeermatEntrepreneur
      / WeighingTheOptions
  * 2010-08
    * DavidBedford
  * 2010-07
    * TheTuesdayBoy
  * 2010-05
    * OptimalPricing
  * 2010-04
    * RedPriestConcertScheduleOld
      / SpecialRelativity
  * 2010-02
    * RachelWright
  * 2010-01
    * BePositive
  * 2009-12
    * TheJammingGyro
      / PVsNP
      / TheBouncingTorpedo
  * 2009-11
    * JohannImOnlyDancing
  * 2009-10
    * JonathanAllday
      / CarnivalOfTheSeasons
  * 2009-08
    * Tennis
  * 2009-03
    * MultiplexPattern
      / MegHarper
  * 2009-02
    * SoftwareAdvice
      / YoutubeLinks
  * 2008-12
    * ProgrammingLanguage
  * 2008-09
    * Flier
      / ThalesTheorem
      / MovingToBroadband
      / RachelsWitterings
      / TeachingSiteLinks
  * 2008-08
    * SatNav
  * 2008-06
    * LiturgicalEmbroidery
      / JacobeanFireScreen
      / NeedleworkProjects
      / KiwiPanel
      / CotBlanket
  * 2008-05
    * BinarySearchSpecification
      / VeryOldSpeakingEngagements
  * 2008-03
    * DominoesUnlimited
      / RedPriestCarnivalOfTheSeasons
      / RedPriestPiratesOfTheBaroque
      / OldJugglingTalkBookings
      / VeryOldJugglingTalkBookings
      / JugglingTalkBookings
      / JugglingTalkBookingsMap
      / CrossCap
      / WikiName
      / BumpyCaseWords
  * 2008-02
    * AndrewLipson
  * 2008-01
    * CharlesBrookman
      / SciAmProfileOfRonGraham
      / SiteSwapsWithTwoBalls
      / JugglingTutorial
      / SetPoint
      / EditingTips
      / DiffBin
      / Shower
      / SiteSwapsWithEightBalls
      / SiteSwapsWithFiveBalls
      / SiteSwapsWithFourBalls
      / SiteSwapsWithNineBalls
      / SiteSwapsWithOneBall
      / SiteSwapsWithSevenBalls
      / SiteSwapsWithSixBalls
      / SiteSwapsWithTenBalls
      / SiteSwapsWithThreeBalls
      / TechFest
      / SiteMapExpt
      / AimHigher
      / EnigmaProject
      / KnapsackProblem
  * 2007-12
    * LeonhardEuler
      / SheffieldTelegraph
      / PrimeNumber
      / MathsImprovisation
      / DontBlameTheStudents
      / MikeAndWendyGluyas
      / OldSpeakingEngagements
      / TrainFareConfusion
      / RobEastaway
  * 2007-11
    * MathsAtWork
  * 2007-07
    * ThankYouForYourTime
      / SiteMap
      / PaperDodecahedron
      / LadderDiagram
      / JugglingLab
      / ThankYouForYourEdit
  * 2007-06
    * SynchronousSiteSwap
      / TheBox
      / MM_STD_07
      / MM_STD_04
      / MM_STD_03
      / MM_STD_02
      / MM_STD_01
      / DwellTime
  * 2007-04
    * NotDoneYet
      / CafeScientifique
  * 2007-03
    * SendUsEmail
  * 2007-01
    * KoenigsbergImages
      / OverTheTop
      / 45141
  * 2006-12
    * HalfShower
      / NecessaryVersusSufficient
  * 2006-11
    * ArmMovement
      / OneThrowTrick
  * 2006-09
    * MillsMess
      / OutsideThrow
  * 2006-08
    * MathsTalk
      / MathematicalMovingChairs
      / CreateThePage
      / NeilMussett
      / JoyOfChildren
      / KraigThornber
      / OneHighThrow
      / LiverpoolMathematicalSociety
  * 2006-07
    * InventingSynchronousPatterns
  * 2006-04
    * UnapproximableNumbers
      / BelaBollobas
  * 2006-03
    * OneWeirdThrow
  * 2005-12
    * AndrewsAlliteration
      / Cascade
      / Fountain
      / GameOfGo
      / JuggleMaster
      / JugglingPattern
      / JugglingTrick
      / LetUsKnow
      / MM_STD
      / MM_STD_06
      / ProjectivePlane
      / RequestError
      / ReverseCascade
      / SchoolTalk
      / TheRobot
  * 2005-06
    * CycleTime
      / RubensteinsRevenge
      / BurkesBarrage
      / SoftwareForDownload
      / SecurityInShipping
      / JugglingTalkPublicity
  * 2005-05
    * EditingError
      / BernersLeeOnJava
      / TimBernersLee
      / TwoAndOne
      / FalseShower
      / JuggleKrazy
      / StateTransitionDiagram
  * 2004-11
    * TimingVariation
      / MM_STD_15
  * 2004-01
    * DiffBinHelp
  * 2003-07
    * WikiWiki
  * 2002-05
    * TimeReversal
      / OddCatches
      / FountainThrow
      / SolipsysLimited
      / MM_STD_05
      / Chops
  * 2002-04
    * MM_STD_14
  * 2002-03
    * JuggleSpace
      / CodingChallenges