El cheapo jersey - Page 2

"Paul_MCMLIX" <usenet-forum@cyclingforums.com> wrote in message
news:3fa23d42$1_4@news.chariot.net.au...
> I stand corrected...whatever the stuff is called, I just meant 'really bright
> stick-out-like-dogbally stuff' that decreases the chance of you getting skittled by a semi...

But insects are attracted to bright things...

hippy ;-)

Graeme wrote:
>
> Arpit <DONTSPAMMEF00Lneko4@dodo.com.au> wrote in news:rltppv0fbllur0lpo5mg7ulj7iur3fj98i@4ax.com:
>
> > luoro works by converting ultra violet light into visible light (fluorescing) its MUCH more
> > visible in twilight and when its cloudy, compared to white stuff, because the ratio of uv to
> > visible light is much higher then.
> >
>
> It sounds like much of the stuff this thread has mentioned isn't really fluoro, but "day-glow"
> i.e. eye pokingly bright colours. Apparently it is incredibly difficult (impossible?) to get true
> fluoro into the fibres they make the cloth from and even if they could the effective life span is
> pretty short.

Graeme, I respectfully differ on both points you make.

* As far as I know, "day-glow", aka "dae-glo" (or something similar) coloured pigments are the same
as what are now called fluoro colours. They were called "day-glow" because, as arpit wrote, the
pigments picked up UV but reflected it in the visible spectrum, hence "glowed" in "daylight".
Bright pigment colour dyed clothes, like my dear old bright red wool jumper that has kept me so
on-bike warm for so many years (mostly under fluoro gear, tho) are very visible compared to more
subdued pigment colour dyed clothes like your Japara or black Levis, but they are simply not as
visible as fluoro colours. Consider a rainbow tie-dyed t-shirt v your standard fluoro yellow Netti
shower-resistent zip-up top. The Grateful Dead fan's t-shirt's pigment's yellow (whew! s'o man'y
a'postrophe's!) would reflect back the (less whatever amount that isn't reflected but absorbed,
and changed from light energy to heat, or (umm.. guessing here) entropy in the form of fading or
denaturing the pigment and/or fabric in technical formulas that we just ain't concerned with here)
R:254, G:254, B:0 and similar wavelengths of the sunlight that falls on it. The Netti top,
however, reflects back the R:254, G:254, B:0 spectrum light and similar wavelengths, PLUS the UV
converted to visible light from similar wavelengths. What I mean is, a garment dyed with bright
yellow pigments is not as visible as a garment dyed with bright yellow pigments that also take UV
light and reflect them yellow wavelength light.

* I forgot to take my yellow sunnies to lawlib today... now, how the feck does that work? How does
blocking out a whole lot of the spectrum with yellow lenses make things more visible at night or
in low light conditions? OK, so yellow lenses make things look more sunny (even tho fine day
daylight peaks on the blue end of the spectrum) on rainy days, but at night, too? What is the deal
with that?

Ahem.

I forgot to take my yellow sunnies to lawlib today, and (as I would have, anyway) took the long way
back home in growing twilight. As the sun set, I noticed that my:
- 8 years old fluoro yellow socks;
- 5 years old Netti rain-jacket; and,
- 11 years old, fabric-wise, and home-made, fluoro thermafleece jacket were fluorescing their little
hearts, if garments have hearts, out. Most of above-mentioned garments are very faded. But they
still seemed to catch the sunset UV, and do their dayglo thing. Moreover, whenever I'm wearing my
bike gear and take a / in inner city public toilets lit with UV lights (so that... well, y'all
know why there lit like that), my ancient kit nevertheless lights up like a Christmas Tree.

>
> "Paul_MCMLIX" <usenet-forum@cyclingforums.com> wrote in message
> news:3fa23d42$1_4@news.chariot.net.au...
> > I stand corrected...whatever the stuff is called, I just meant 'really bright
> > stick-out-like-dogbally stuff' that decreases the chance of you getting skittled by a semi...

I think that
>
> But insects are attracted to bright things...
>
> hippy ;-)

And to hippy: Yeep! Do you have scary moments when you walk your bike out the door to ride to work,
and all the bees in the front garden decide that you are far more interesting than the petals they
bin bzzzing at? Apparently, many flowers have UV-light-only pigmentation, because bees' vision is in
a shifted spectrum to us vertebrates. Or something.

p

Fred Nieman <fred_kneeman@hotmail.com> wrote:
> Graeme wrote:

[chopped entertaining read]

> Moreover, whenever I'm wearing my bike gear and take a / in inner city public toilets lit with UV
> lights (so that... well, y'all know why there lit like that), my ancient kit nevertheless lights
> up like a Christmas Tree.

actually, why are some public toilets lit like that? I've heard that it's so that it's harder to
shoot up, but is it really?

>
>>
>> "Paul_MCMLIX" <usenet-forum@cyclingforums.com> wrote in message
>> news:3fa23d42$1_4@news.chariot.net.au...
>> > I stand corrected...whatever the stuff is called, I just meant 'really bright
>> > stick-out-like-dogbally stuff' that decreases the chance of you getting skittled by a semi...
>
> I think that
>>
>> But insects are attracted to bright things...
>>
>> hippy ;-)
>
> And to hippy: Yeep! Do you have scary moments when you walk your bike out the door to ride to
> work, and all the bees in the front garden decide that you are far more interesting than the
> petals they bin bzzzing at? Apparently, many flowers have UV-light-only pigmentation, because
> bees' vision is in a shifted spectrum to us vertebrates. Or something.
>

>
> p

--
removethis@optushome.com.au is a valid email address. Don't remove anything!

eug k wrote:
>
> Fred Nieman <fred_kneeman@hotmail.com> wrote:
> > Graeme wrote:
>
> [chopped entertaining read]

Thanks from both of us (probably]!
>
> > Moreover, whenever I'm wearing my bike gear and take a / in inner city public toilets lit with
> > UV lights (so that... well, y'all know why there lit like that), my ancient kit nevertheless
> > lights up like a Christmas Tree.
>
> actually, why are some public toilets lit like that? I've heard that it's so that it's harder to
> shoot up, but is it really?

Yep, 's why, As far as I know. It think it got a wee flurry in the media (oops - no pun intended) a while ago.
Just means you have to draw where to hit up in biro before you go in - tho I notice some of the UV
tubes at in the loo on the west of Flinders St have been replaced with conventional ones. (I'll bet
that it was a nice idea at the time, but now it's too expensive top replace them.) Either that or
it's designed to validate us "be loud, be proud" types.
>
> >
[more interesting stuff]

If your in Melbourne there is a story on Sydeny road called Episode which stocks 2nd hand jerseys I
got my three from there from about $15 each.
---------------------

I was intrigued by the reference to the 2nd hand jerseys in Syndey Rd, Brunswick, so I phoned them.

Episode is a 2nd-hand clothing store specialising in clothes from Europe and the US. The clothing range includes cycling jerseys and, to a lesser extent, jackets and sometimes shorts.
The jerseys come in Lycra, wool and acrylic. The Lycra specials start at $5. The wool $20 - $40. Epsiode hrs are 9 -6 Mon - Wed & Sat; 9 - 8 Thu, Fri; & 11 - 6 Sat.

(I have absolutely no vested interest in Episode)

If your in Melbourne there is a story on Sydeny road called Episode which stocks 2nd hand jerseys I
got my three from there from about $15 each.
---------------------

I was intrigued by the reference to the 2nd hand jerseys in Syndey Rd, Brunswick, so I phoned them.

Episode is a 2nd-hand clothing store specialising in clothes from Europe and the US. The clothing range includes cycling jerseys and, to a lesser extent, jackets and sometimes shorts.
The jerseys come in Lycra, wool and acrylic. The Lycra specials start at $5. The wool $20 - $40. Epsiode hrs are 9 -6 Mon - Wed & Sat; 9 - 8 Thu, Fri; & 11 - 6 Sat.

Episode contact details: 175 Sydney Rd, Brunswick. 03 9380 1777.

(I have absolutely no vested interest in Episode)

Fred Nieman <fred_kneeman@hotmail.com> wrote in news:3FA50831.FE46C864@hotmail.com:

> Graeme, I respectfully differ on both points you make.
>

Fair enough (sorry to dredge up this old thread, I've not been online for a while). I think any
problem with my previous statements probably stems from the fact that the original conversation I
mentioned covered about 6 different topics (all the best ones do). We had at one point been
discussing the "fluoro" glow from watches etc. (i.e. glows once the stimulating light source is
removed) and this may have been the type of colouring/dye that is difficult/impossible to produce in
a commercially viable weaving process.

I take your point about "day-glo" (or whatever) clothing being brighter than normal clothing, but
the percentage of the original light given off again by the clothing is *very* low. On a dark night,
if you are outwith the beam of a car headlights the clothing will be still be fairly unnoticable
compared to even a cheapy LED light. You are far better off with some sort of reflective material,
e.g Scotchlite. That also relies on being in the beam of another light source but it will make you
more visible for a given amount of light.

Cheers,

Graeme

Graeme wrote:
>
> Fred Nieman <fred_kneeman@hotmail.com> wrote in news:3FA50831.FE46C864@hotmail.com:
>
> > Graeme, I respectfully differ on both points you make.
> >
>
> Fair enough (sorry to dredge up this old thread, I've not been online for a...
<-- comments relocated to bottom for easy reading of -->

> We had at one point been discussing the "fluoro" glow from watches etc. (i.e. glows once the
> stimulating light source is removed) and this may have been the type of colouring/dye that is
> difficult/impossible to produce in a commercially viable weaving process.

1) Agreed. I think the distinction here is between
- fluorescence, ("Day-Glo") where electrons in the active compounds in the pigments absorb UV light
and jump to a higher energy state, and visible light is emitted when those electrons jump down to
a lower energy state and emit a light of their own); and,
- phosphorescence ("glow in the dark") where electrons in the pigments in effect soak up the energy
of the light falling on them and then re-emit the stored energy later as a glow. (refs: year 12
physics, plus inter alia (to check the terminology)
http://mineral.galleries.com/mineral...y/fluoresc.htm,
http://mineral.galleries.com/mineral...y/pleochro.htm)

2) Actually, I guess in lay terms, there are two kinds of "phosphorescence"
- the "glow in the dark" effect, and then
- stuff that glows without a prior external energy source (like radioisotopes, or freshly shaved
anglo-celtic male legs). Phosphorescent fabrics? Well, there were those t-shirts around that
changed colour depending on the heat of the bit of you they were touching, and I for a long time
had blue shoelaces in my field hockey shoes that incorporated micro-balls of blueberry smelling
stuff. I'm sure that since there's the kind of technology around today to perform feats that even
20 years ago might have just seemed like science fiction (nanotechnology, quantum computers,
George W Bush as POTUS), "glow in the dark" phosphorescent fabrics, but there's just no demand for
the supply. (I guess this goes a whole lot than just double for
lycra-with-radioisotope-microthingies... but who knows whether the big hit of the next Summer
Collections from Milan will be the new "ionising radiation chic"...)

> I take your point about "day-glo" (or whatever) clothing being brighter than normal clothing, but
> the percentage of the original light given off again by the clothing is *very* low. On a dark
> night, if you are outwith the beam of a car headlights the clothing will be still be fairly
> unnoticable compared to even a cheapy LED light. You are far better off with some sort of
> reflective material, e.g Scotchlite. That also relies on being in the beam of another light source
> but it will make you more visible for a given amount of light.

3) Again, 100% agreed. Why can't I buy a (for example) Netti water-resistant jacket that,
* instead of being (daytime very visible) with about 0.5 cm$B%$(B token Scotchlite (nighttime,
looks like a dull grey, and I'd be better off wearing a plain white jacket)
* is either;
- made of a fabric with fluoro yellow and Scotchlite alternating stripes, or;
- made of a fabric that is Scotchlite-like reflective, but dyed a fluoro yellow pigment? <curses,
and shakes fist, at market forces>

<-- relocated from top -->
> Fair enough (sorry to dredge up this old thread, I've not been online for a while). I think any
> problem with my previous statements probably stems from the fact that the original conversation I
> mentioned covered about 6 different topics (all the best ones do).

Umm, I was only going to mention 3 vaguely on-topic topics in this reply, but I'd like to make it
one of the "best ones"... so here goes:
4) why are "Bianchi" bikes traditionally a pastel blue-green (roughly R: 129, G: 255, B: 215) when
"bianchi" in Italian means "(the) white ones"?
5) Philip Ruddock appears to be an intelligent and compassionate person, so how does he manage to
sleep at night?
6) If pneumatic tyres and the modern bicycle chain had been invented 100 years earlier, would we
all be riding bicycles instead of driving cars, or would we be riding motorcycles instead of
driving cars?

>
> Cheers,
>
> Graeme

xx

p