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Freewheeling / Re: Grazes through clothing?
« Last post by hellymedic on Yesterday at 11:59:08 pm »The other thing I think occurs, is that the tarmac or whatever adheres to the Lycra, which detaches from the subjacent skin.
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Freewheeling / Re: Grazes through clothing?
« Last post by andyoxon on Yesterday at 11:42:12 pm »Would the claw tip go between/puncture the lycra 'weave', in the way a flat/rough surface would not?
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Gallery / Re: Cycling injuries- the gorier the better.
« Last post by andyoxon on Yesterday at 11:35:31 pm »yay scabs to pick. Every cloud... 
Thanks.
Thanks.
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Freewheeling / Re: Grazes through clothing?
« Last post by Kim on Yesterday at 11:29:17 pm »I can confirm that you can scratch yourself with a cat through Lycra clothing without substantially damaging the Lycra...
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Freewheeling / Re: Grazes through clothing?
« Last post by hellymedic on Yesterday at 11:25:15 pm »Suspect Lycra is 'harder' - resists abrasion - better than skin. It is also more elastic and has greater tensile strength - skin tears more easily.
I reckon you could scratch yourself with a dinner fork through Lycra clothing (if you are silly enough to try).
Methinks this is simple abrasion, not burning.
I reckon you could scratch yourself with a dinner fork through Lycra clothing (if you are silly enough to try).
Methinks this is simple abrasion, not burning.
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The Pub / Re: Tune Association
« Last post by spesh on Yesterday at 11:19:10 pm »Where Eagles Dare - Iron Maiden
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Freewheeling / Grazes through clothing?
« Last post by andyoxon on Yesterday at 11:09:13 pm »or more specifically getting grazes in a fall, through lycra/clothing - which remains pretty well undamaged (as happened today to me). What exactly is happening? Simply a friction burn and lycra is more elastic than skin?
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The Knowledge / Re: Best hub generator front lamp for avoiding low speed flicker?
« Last post by SA_SA_SA_SA on Yesterday at 11:05:32 pm »No need for me to design optics because my need for an approved lamp means I just either want a lamp with enough electrikery to avoid flashing or to make an external box of such electronictrickery to place between hub and lamp:---
It was a series voltage doubler(Greinacher circuit) followed by 26.8Volts of Zener clamp, followed by a step down regulator, which was not enabled till approx 20V was reached (IMO), thus soft start. The backup was charged, the designer claimed the higher voltage operation provided extra efficiency to compensate for the rectifier and step down losses.
I wonder if one could just leave out the step down section and run Stzvo E bikelights rather dyno ones....
...Fill a fat capacitor and then design a regulator that will hold on at low voltages but as speed rises soft start.....That reminds me of the backup circuit described in Dec 94 of Electronics World (and related letter in Oct 95 correcting that the works 'up to 15kmh' had been mistakenly added:
It was a series voltage doubler(Greinacher circuit) followed by 26.8Volts of Zener clamp, followed by a step down regulator, which was not enabled till approx 20V was reached (IMO), thus soft start. The backup was charged, the designer claimed the higher voltage operation provided extra efficiency to compensate for the rectifier and step down losses.
I wonder if one could just leave out the step down section and run Stzvo E bikelights rather dyno ones....
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Gallery / Re: Cycling injuries- the gorier the better.
« Last post by Paul on Yesterday at 11:05:28 pm »That’ll make fine pickin’.
Scab (and heal) well soon.
Scab (and heal) well soon.
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The Pub / Re: Tune Association
« Last post by madcow on Yesterday at 11:01:53 pm »Every Which Way But Loose-Eddie Rabbit