New review added 'Cheap Glowsticks'

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simonrl
51% (Neutral)
Administration Topic Starter

17 years ago

A new review has been added to the Gear Reviews page.

Product name: Cheap Glowsticks

Summary: Bought off eBay nearly two years ago, and left forgotten and unloved on a dusty shelf...

Review added by: simonrl

Full review: http://www.aditnow.co.uk/gear-reviews/Cheap-Glowsticks/

my orders are to sit here and watch the world go by

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Gwyn
50.2% (Neutral)
Newbie

17 years ago

Well done, Simon. :thumbsup: How interesting!
I've never actually met these things! What's in them? Is there any form of COSHH/CHIP documentation that comes with them?

simonrl
51% (Neutral)
Administration Topic Starter

17 years ago

Can't find any COSHH style info, but this page on a USA supplier's site does at least identify the chemicals (in theirs at least!)

http://extremeglow.com/faq.htm#5

my orders are to sit here and watch the world go by

Gwyn
50.2% (Neutral)
Newbie

17 years ago

How interesting!
A 0.5% solution of hydrogen peroxide in phthalate ester!
Phthalates are endocrine disrupting compounds.
I wouldn't eat that frog if I were you Simon!

Vanoord
54.4% (Neutral)
Newbie

17 years ago

Following an experiment last night:

🔗Personal-Album-2-Image-087[linkphoto]Personal-Album-2-Image-087[/linkphoto][/link]

Left - snapped 10 hours earlier and put in the freezer
Middle - put in the freezer for 10 hours, not snapped
Right - snapped 10 hours earlier and not frozen

In line with what one might expect for a chemical reaction, the glowing is retarded by the low temperature but as soon as the temperature rises, the glow returns.

I've put the stick back in the freezer and will try it again in a few days...

Hello again darkness, my old friend...

Dean Allison
50.2% (Neutral)
Newbie

17 years ago

Great review! But what distance will they light? Could you navigate a mine tunnel with these if you were desperate?

chrisataditnow
50.2% (Neutral)
Newbie

17 years ago

"BigLoada" wrote:
Great review! But what distance will they light? Could you navigate a mine tunnel with these if you were desperate?

Absolutely yes mate!! 😉

If it's raining, put a mountain on your head

Vanoord
54.4% (Neutral)
Newbie

17 years ago

"Vanoord" wrote:
Following an experiment last night:

🔗Personal-Album-2-Image-087[linkphoto]Personal-Album-2-Image-087[/linkphoto][/link]

Left - snapped 10 hours earlier and put in the freezer
Middle - put in the freezer for 10 hours, not snapped
Right - snapped 10 hours earlier and not frozen

In line with what one might expect for a chemical reaction, the glowing is retarded by the low temperature but as soon as the temperature rises, the glow returns.

I've put the stick back in the freezer and will try it again in a few days...

And here we are, about four weeks later! I have removed said glowstick from the freezer and warmed it up - here's a pic:

🔗Personal-Album-2-Image-091[linkphoto]Personal-Album-2-Image-091[/linkphoto][/link]

It's alive and well!

Hello again darkness, my old friend...

Gwyn
50.2% (Neutral)
Newbie

17 years ago

Which one did you put back in the freezer,left,middle or right?
Conversely, what happens if they are warmed up? eg. a short, low power, time in a microwave? Ambient, +10c, +20c?

LAP
50.2% (Neutral)
Newbie

17 years ago

#10

I've used these in the past, never underground though.

When I was at a Science lecture in Manchester last year, we were told that for emergencies the colours yellow and green were best.

Kein geneis kanaf - Cain gnais canaf
Byt vndyd mwyhaf - byth onddyth moyav
Lliaws a bwyllaf - Líows o boylav
Ac a bryderaf - ac o boryddarav
Kyfarchaf y veird byt - covarcav yr vairth
Pryt nam dyweid - poryth na'm dowaith
Py gynheil y byt - Pa gonail y byth
Na syrch yn eissywyt - na soroc yn eishoyth
Neur byt bei syrchei - nour byth bai sorochai

Vanoord
54.4% (Neutral)
Newbie

17 years ago

#11

Er, left was put back in the freezer and was the one I popped out four weeks later.

Basically, if you freeze the thing, the reaction that produces the light is massively slowed down and you can 'stop' it and then reactivate it by warming it up.

Hello again darkness, my old friend...

psykx
50.2% (Neutral)
Newbie

17 years ago

#12

I'd imagine that because the human eye can see greeney light better than colours the other end of the spectrum. although blue light always seem to be crap for some reason.

simonrl
51% (Neutral)
Administration Topic Starter

16 years ago

#13

Following on from the review of the cheap glow sticks, had a play last weekend with some of the 30 minute super bright ones http://www.glosticks.co.uk/white-high-intensity-minute-glow-sticks-p-80.html definitely a different league in light output, but at the cost of an exponentially reduced lifespan.

my orders are to sit here and watch the world go by

LAP
50.2% (Neutral)
Newbie

16 years ago

#14

We might end up looking like this fella:
http://danphillips.com/personal/burning_man_2000/people/images/glow_stick_man.jpg

Brakeman
50.2% (Neutral)
Newbie

16 years ago

#15

These are the ones I use now, as you say very bright, but best to carry at least two. They are also physically a lot tougher than the real elcheapo ones, so don't get so easily damaged in your tackle bag. Good bit of kit!

The management thanks you for your co operation.

simonrl
51% (Neutral)
Administration Topic Starter

16 years ago

#16

I agree, I'll upload a photo later or tomorrow I took just by the light of one of them. Very impressed with them and certainly enough light to escape a mine by.

my orders are to sit here and watch the world go by