And someone was scared of a 24 volt capacitor ...

Discussion in 'UK Motorcycles' started by geoff, Jun 6, 2009.

  1. geoff

    platypus Guest

    It was totally obvious that someone was going to get voltage. Continuing to
    watch was an informed choice for anyone with a clue. My reaction to this
    video was to ruminate on how rapid, and how casually approached, was the
    transition between life and death, and also to note how the crowds ran away
    after it happened. It's a very human reaction, but it's also a very animal
    reaction.
    Read what I said up there about rapid transitions between life and death,
    and ruminate upon how that might apply to you.
     
    platypus, Jun 7, 2009
    #21
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  2. geoff

    Cab Guest

    I remember being subjected to Viet Nam medical films which were fairly
    graphic too.
     
    Cab, Jun 7, 2009
    #22
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  3. geoff

    boots Guest

    I recall that one, although not any names just the impaled hand.
    And that one.
    Me as well, the other that sticks is the vaporising busbar in a power
    cabinet burning the guys eyes out. AIUI all of them were based on
    actual incidents as well.
     
    boots, Jun 7, 2009
    #23
  4. geoff

    T i m Guest

    Did you get the slightly funny (in it's non PCness now days if nothing
    else) but equally gory consequences film.

    Scene: A raised steel mesh gangway across a machine shop floor. *Very*
    tasty office type girl leaves office at one end and walks to the other
    (mini skirt, legs right up to her arse etc). 'Blokes' on the shop
    floor looking up get distracted one by one and the chaos and resultant
    gore ensues. The ones I remember was long haired guy gets his hair
    caught up in a lathe chuck and fork lift driver pins someone to the
    wall though with a fork their chest. ;-(

    All the way though this when most of us trainees were watching said
    though our fingers, one 'lad' was giving it large, going on about the
    gore and blood, laughing etc. Then we got to the No-Smoking film and
    the scene starts with a scalpel cutting someone down the middle and
    the surgeon pulling out a lung to look at. We then hear a crash and
    loud boy has passed out on the floor (where we left him, it was
    quieter that way). ;-)

    The line that still confuses me to this day was the surgeon, holding
    up two different looking lungs (one pink and one tar coloured) saying
    "This is the damaged lung from a smoker and this is the healthy lung
    from a non smoker ..." ?

    I've never smoked either. ;-)

    T i m
     
    T i m, Jun 7, 2009
    #24
  5. geoff

    Pip Luscher Guest

    Hmm, though it was pretty obvious what was going to happen, I still
    found it a bit shocking (hah!)

    Oddly I was also fascinated in a macabre way: I mean, his body is a
    conductor composed mostly of water, but his clothes were smouldering
    and his hair seemed to be on fire: so does at least some of the
    current flow outside the body? One might expect heat sufficient to set
    external flammables alight would also cause the water to flash to
    steam big time.
     
    Pip Luscher, Jun 7, 2009
    #25
  6. geoff

    Andy Bonwick Guest

    The latest one to hit power stations across the country is a warning
    about using your mobile when it's plugged into a mains charger.
    Apparently it's possible (in vary rare circumstances) to pile 240v
    though your lughole which has a rather nasty effect on your ability to
    pump blood around your body.

    I've seen the pictures so it's probably true but it won't stop me
    chatting on the phone when it's charging.
     
    Andy Bonwick, Jun 7, 2009
    #26
  7. geoff

    Catman Guest

    Capaci*ance* is measured in Farads.

    Capacitors are specified in Farads and Volts IIRC.

    --
    Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
    Tyger, Tyger Burning Bright (Remove rust to reply)
    116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
    Triumph Sprint ST 1050: It's blue, see.
    www.cuore-sportivo.co.uk
     
    Catman, Jun 8, 2009
    #27
  8. geoff

    T i m Guest


    I've had that in the form of a circular e-mails and like you I
    wouldn't bother worrying about it.

    Yes, I guess there is more of a chance of 240V getting through the
    charger and into the phone *if* you use it whilst it's plugged in but
    there's probably just as much of a chance of getting the same shock
    off it as you unplug it from being charged.

    Or the battery could explode in yer ear or trouser pocket. ;-(

    T i m
     
    T i m, Jun 8, 2009
    #28
  9. geoff

    TOG@Toil Guest

    Nothing a decent fish slice wouldn't shift.
     
    TOG@Toil, Jun 8, 2009
    #29
  10. geoff

    Andy Bonwick Guest

    I'm sure I read somewhere that Karcher used the cleaning up in a
    promotional video.
     
    Andy Bonwick, Jun 8, 2009
    #30
  11. geoff

    Catman Guest

    A Farad being rather a lot.

    and the maximum voltage the
    Ahh, don't recall that from my mispent youth.

    --
    Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
    Tyger, Tyger Burning Bright (Remove rust to reply)
    116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
    Triumph Sprint ST 1050: It's blue, see.
    www.cuore-sportivo.co.uk
     
    Catman, Jun 8, 2009
    #31
  12. geoff

    geoff Guest

    Aren't capacitors measured in farads not volts?[/QUOTE]


    Both parameters are important

    they have a maximum rated voltage
     
    geoff, Jun 8, 2009
    #32
  13. geoff

    frag Guest

    Catman wibbled...
    Don't forget the max rated temperature and polarity.
     
    frag, Jun 9, 2009
    #33
  14. geoff

    Catman Guest

    Oh yes. Happy memories.

    --
    Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
    Tyger, Tyger Burning Bright (Remove rust to reply)
    116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
    Triumph Sprint ST 1050: It's blue, see.
    www.cuore-sportivo.co.uk
     
    Catman, Jun 9, 2009
    #34
  15. geoff

    Jérémy Guest

    Is there any more bizarrely scaled unit than the farad? ISTR in school
    calculating that the capacitance of the earth is within an order of
    magnitude of one farad[1].

    [1] I've no idea now how I might have done that, and it's one of the many
    things that Wolfram Alphea ought to be able to do and can't, so I welcome
    input from SWK.
     
    Jérémy, Jun 9, 2009
    #35
  16. geoff

    Jérémy Guest

    Thank you. The things I could do before wasting all those neurons.... (I'm
    assuming my current memory is at fault, rather than my earlier ability -
    since I remembered to try WA and forgot to try Google that seems a
    reasonable assumption).
     
    Jérémy, Jun 9, 2009
    #36
  17. geoff

    Pip Luscher Guest

    That's not really the 'capacitance of the Earth' though, is it? In
    fact, is it valid to talk about capacitance of only one plate of a
    capacitor? It's a long time since I was at school.
     
    Pip Luscher, Jun 9, 2009
    #37
  18. A few years ago, I did some work where several banks of 20kV
    capacitors were used. I had the dubious pleasure of having to be the
    person removing the earthing strap as I left and being the person
    first back on the scene with a massive big earthing rod which weighed
    a ton, to earth them before putting the earthing strap back on. You
    really didn't want to forget yourself and put one hand beyond the
    ceramic insulators to steady the rod.

    I was very relieved when that particular job was over.
     
    Beelzebub_on_Mac, Jun 10, 2009
    #38
  19. I recal SIDE.
    Oh, the fun of watching those PIFs.
     
    Grimly Curmudgeon, Jun 10, 2009
    #39
  20. geoff

    ogden Guest

    That video (the beheading one) was the only one I've ever seen where I
    was a bit quiet afterwards, and thought "I kinda wish I hadn't seen
    that".

    The video was alright but the audio track was genuinely horrible.
     
    ogden, Jun 14, 2009
    #40
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