[Coral-List] Underwater signage
ceo at lindorm.com
Mon May 20 09:30:14 EDT 2013
How about this:
"WARNING - DO NOT TOUCH - CONTENTS UNDER HIGH PRESSURE"
On 2013-05-19, at 19:42, Scott Heron - NOAA Affiliate wrote:
> Two thoughts on this from my experience:
> * Saying "WARNING" rather than "DANGER".
> * Rather than 'radioactive', perhaps try "ELECTRICAL WARNING: 50,000
> ohms."? Ohms are the units of resistance (better still, use the unit
> symbol of capital omega rather than the word to look good). High
> resistance is a safe thing; to the unknowing potential interactee, the
> reference to electricity combined with a big number should be enough of a
> Cheers, Scott.
> On Sat, May 18, 2013 at 6:14 PM, martina <m.milanese at studioassociatogaia.com
>> Nice idea!
>> I will try it myself, and adapt it to our dataloggers (that are
>> recurrently being stolen).
>> They are little cute things with a pulsing red LED light - apparently
>> very attractive to marine life covered in neoprene.
>> Il 17/05/13 19.48, Michael Risk ha scritto:
>>> Good day.
>>> Many years ago [the statute of limitations has now run out] I was
>> attempting to obtain settling rates of invertebrates on panels with
>> different textures, set underwater at Catalina Island. I ran into terrible
>> problems with treasure hunters/vandals/thieves damaging the experimental
>> setups. So I devised a modified technique. I wrote my text on the panels
>> using red nail polish, and then covered that with a fiberglass gelcoat. The
>> panels themselves were simply soft wood 2 x 6 pieces, covered in
>> fiberglass. What I wrote was not accurate, but was designed to repel
>>> Worked like a charm. The panels were underwater for many months, the
>> signage remained legible, and any algae could simply be wiped off.
>>> A friend of mine, the manager of the Marine Lab, was standing on the
>> lab dock one day when a dive boat pulled up, and a red-faced overweight
>> irate diver jumped off. He said "Hey! I was just diving out on the rocks,
>> and I saw some panels down there. I whipped out my knife and was going to
>> collect them for my rec room, when I read the sign that said DANGER
>> RADIOACTIVE. Am I in any danger because I came so close?"
>>> Bob had a moment to think, this is the kind of guy that has just caused
>> Mike to lose six months work. Then he said "Sir, you are in absolutely no
>> danger. There is only a slight chance of any damage. Go home, and if you do
>> not notice any change in your external genitalia over the next six months,
>> you will know you are out of danger."
>>> Several lessons here. First, don't try this at home. Second, a gelcoat
>> over your text is a guarantee of longevity. Of your text.
>>> On 2013-05-16, at 8:39 AM, Ruleo Camacho wrote:
>>>> Good Day,
>>>> I am attempting to create some underwater signage for a snorkeling reef
>>>> trail but I have been having immense difficulty in obtaining a material
>>>> which would be adequate to stand up to the rigors of salt water and and
>>>> micro organisms. Any suggestions on what materials/methods may be
>>>> for this use?
>>>> Coral-List mailing list
>>>> Coral-List at coral.aoml.noaa.gov
>>> Michael Risk
>>> riskmj at mcmaster.ca
>>> Coral-List mailing list
>>> Coral-List at coral.aoml.noaa.gov
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