Non-Euclidean Geometry [Topics in the History of Mathematics]

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  • Опубліковано 20 сер 2013
  • Another Open University oldie. This one's a bit more hxc (and considerably older - the 1970s public were apparently considered far smarter than we are today!), but it's mostly easy enough to grasp if you put your mind to it.
    Non-Euclidean Geometry is relevant for the Riemann curvature of space-time in General Relativity and all that. It's also interesting to watch logic (or a bearded professor) decimate what was once considered to be a fundamental truth of mathematics and reality, if you're into that sort of thing. (maybe that's a bit over-dramatic).

КОМЕНТАРІ • 56

  • @mikefuller6959
    @mikefuller6959 8 років тому +68

    I used to creep down stairs in the early hours of the morning in the 1980's to watch Open University. Happy days!

    • @mikefuller6959
      @mikefuller6959 8 років тому +9

      +Mike Fuller I never understood a word of it! I just liked it and admired how clever the lecturers were! I wished to be as clever!

    • @vengerer
      @vengerer 8 років тому +1

      +Mike Fuller how cute :)

    • @buckpartington7161
      @buckpartington7161 8 років тому

      what with cock in hand

    • @mikefuller6959
      @mikefuller6959 8 років тому +1

      +Vladi Nekoloff (vengerer)
      Thank You, Vladi!
      It is nice to come across a nice person!

    • @theaviary1
      @theaviary1 8 років тому +2

      +Mike Fuller Me too I used to watch it as a child - goodness knows I couldn't understand it

  • @reddevil9554
    @reddevil9554 7 років тому +13

    I used to watch them every weekend as a kid, because I got up early and there was no kid's TV on until later back then. If you wanted to watch TV early, only this was ever on lol.

  • @NorthEastTrailRunner
    @NorthEastTrailRunner 9 років тому +189

    We need more intellectually stimulating television programmes like this, and less X Factor.

    • @PatGleeson123
      @PatGleeson123 9 років тому +19

      Absolutely - TV has gone downhill since those days - chasing the lowest common denominator - sad really ...

    • @AvNotasian
      @AvNotasian 9 років тому +13

      Can't be done.
      The initial audience would require skills for every new TV show the likelihood that the whole audience can watch and comprehend is very low.
      Someone needs to collate all stimulating programs into a youtube guide.

  • @maurpine
    @maurpine 6 років тому +7

    this is fantastic! i love this timeless instructional programs

  • @Robert-qs4th
    @Robert-qs4th 10 років тому +17

    Anyone else procrastinating math homework to watch this?

  • @hanniffydinn6019
    @hanniffydinn6019 6 років тому +9

    I miss open university programs on tv on in the early morning

  • @EdiDrums
    @EdiDrums 6 років тому +5

    21:31 Oh, Jeremy!

  • @parkerd2154
    @parkerd2154 7 років тому +13

    mind blown at 12:21

  • @billyh88uk
    @billyh88uk 8 років тому +11

    I actually remember watching this - it would have been one of its last TV showings in the mid 2000s (maybe this showing?) when I was a sleep-deprived teenager. Didn't quite get all of it but interesting to watch!

    • @MarsHareMarshAir
      @MarsHareMarshAir 7 років тому

      i think i must've taped this slightly earlier than that - I remember watching it with my housemates 2000/2001/2002?
      Pretty impressive that these old shows had such longevity anyway

  • @net51cc
    @net51cc 7 років тому +3

    Beautifully told. Thus just triggers my curiosity.

  • @arj123sub
    @arj123sub 5 років тому

    Fantastic video. Helped me get the basics

  • @frazzleface753
    @frazzleface753 5 років тому +3

    Jeremy Gray is still at the OU :)

  • @ronin6158
    @ronin6158 6 років тому +2

    i love when he's making a particularly noteworthy point and his voice cracks.

  • @donaldklopper
    @donaldklopper 6 років тому +4

    Brilliant videography! The shirt that changed.. The camera dollies and the 3D models. Wow.

  • @Spix_Weltschmerz-Pucket
    @Spix_Weltschmerz-Pucket 9 років тому +2

    Thank you for the upload! :)

  • @emadal-shirbeeny4696
    @emadal-shirbeeny4696 6 років тому

    How I can get the script of this lecture or video?

  • @chopped4skin620
    @chopped4skin620 9 років тому +3

    Thanks for uploading ... Do you have anymore videos in the series?

    • @MarsHareMarshAir
      @MarsHareMarshAir 9 років тому +1

      Afraid not, I taped over a lot of subjects after I later studied them so mostly history and nature docs left.

    • @chopped4skin620
      @chopped4skin620 9 років тому

      Sorry to hear that. Anyway - check this out and tell me what you think ...
      ua-cam.com/video/2un9rO2ZF4g/v-deo.html

    • @MarsHareMarshAir
      @MarsHareMarshAir 8 років тому +1

      Chopped4Skin Sorry, just saw this it was marked as spam!

  • @innertubez
    @innertubez 5 років тому +1

    0:15 either Jethro Tull or Mick Fleetwood teaching math.

  • @gpcrawford8353
    @gpcrawford8353 7 років тому +4

    Left school with no exams ,didn't like the style of teaching , used to watch these to see what I was missing got married and worked all hours god sent bang went watching them . Much later on I was recovering from severe ear infection and surgery read a book forget title in which it claimed that time is relative and gravity is a fictitious force. This was contrary to what I learned in school,I liked science there, got into special relativity and tried to understand general relativity still trying geometry on a sphere is the key but alas the mathematics is still beyond me. Learnt a lot about Einstein the man though .

  • @gatehanger1385
    @gatehanger1385 9 років тому +37

    It seems that men wore non-Euclidean clothes in the 1970's....

    • @garyzod8818
      @garyzod8818 7 років тому

      Yes Joseph I remember the 70s rather stylish.

  • @fitofight8540
    @fitofight8540 7 років тому +1

    i think euclid refered only to a straignt line in his parallel postulate. . a line drawn on a globe is not straight so the postulate do not apply.

  • @metorical
    @metorical 9 років тому +1

    Oh man, I remember watching this when it was on! Up way too late.

  • @wleon4068
    @wleon4068 5 років тому +1

    Well, that was clear enough. Lolol.

  • @Herb.
    @Herb. 5 років тому +1

    Ah yes, curved space. *straightens monocle*

  • @robertbrandywine
    @robertbrandywine 5 років тому +3

    The 5th postulate *is* intuitively obvious.

  • @russellmoxham5625
    @russellmoxham5625 7 років тому

    That gives me the fuckin' nostalgia horn

  • @stevenrogers6983
    @stevenrogers6983 5 років тому +1

    Creepy good..

  • @bobbutler606
    @bobbutler606 5 років тому +1

    Be honest how many of us had heard of this topic before now?

  • @pickledegg1989
    @pickledegg1989 9 років тому

    "The Sum of the Angles" by Concretism brought me here.

  • @Holobrine
    @Holobrine 7 років тому +5

    That parallel postulate looks obvious to me.

  • @jamesrobinson4028
    @jamesrobinson4028 7 років тому

    I watched this as part of my degree course!

  • @BLUEGENE13
    @BLUEGENE13 5 років тому

    we live in a non euclidean space

  • @david-yt4oo
    @david-yt4oo 6 років тому

    blew my mind

  • @yugsnave1
    @yugsnave1 10 років тому +4

    i'm procrastinating going to bed ;)

  • @wi11ydapimp
    @wi11ydapimp 8 років тому +1

    Good old bbc

  • @Novasky2007
    @Novasky2007 10 років тому +12

    looks like a non eucledian beard :D

    • @raythetse
      @raythetse 10 років тому +4

      It's actually infinitely large at the tip.

  • @apburner1
    @apburner1 5 років тому +4

    This is dumb. Euclid's postulates are valid IN Euclidean space.
    Gee, why doesn't diesel work in a gasoline engine?

  • @garyzod8818
    @garyzod8818 7 років тому

    Geometry hmm interesting.

  • @rkent06
    @rkent06 8 років тому +1

    This guy must have got some serious poontang