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Old 4th March 2012, 11:15 PM   #106 (permalink)
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Re: Need a scientist?

Are you sure it was a silver compound turned you blue? The silver nitrate I ingested made me go black, in bright light (like photographic technology) And it was eliminated from the system relatively fast, anyway; most heavy metals will be with time, if they don't kill you outright, or deposit in the bones.
Usually, for blue I'd be looking at copper compounds, but they're not very photosensitive.

But yes, you keep having to absorb the water to maintain the effect. Perhaps they were just lucky; the silver impregnated skin protects against some particular radiation, making the people living next to a stream running from an old silver mine statistically more likely to survive? (it doesn't, as far as I know, but it is a dense metal, and they are used for radiation screening… and believe me, I'm not going to do the experiment).

So they would carry bottles of this exceedingly unhealthy water to protect them against an even unhealthier environment.

And it should put off any werewolves.
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Old 5th March 2012, 05:19 AM   #107 (permalink)
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Re: Need a scientist?

http://en.wikipedia.org/wiki/Argyria
this was the skin condition. said that once ingested, one stayed blue for good.
I am glad that it would be better for them to ingest it then not that eases my conscious when "deforming" their ancestors
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Old 5th March 2012, 12:04 PM   #108 (permalink)
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Re: Need a scientist?

It certainly looks from that article like it is permanent for the sufferer. However it is in no way genetic, so there is no way it could be passed on to the children. If you want them to suffer as well, I think they will have to be exposed to the silver as well. Also note that it will probably take years of exposure to reach the levels shown on that page. So your children would start normally coloured and progress towards the bluish colour as they age.
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Old 14th March 2012, 12:17 AM   #109 (permalink)
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Re: Need a scientist?

I was writing about a character who was almost zapped by a military laser, and wrote, almost instinctively, "It passed close, so close he could smell the ozone."

Could high powered lasers (or any energy weapon) in air make ozone? In the future, though; not now.
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Old 14th March 2012, 12:25 AM   #110 (permalink)
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Re: Need a scientist?

Quote:
Originally Posted by alchemist View Post
I was writing about a character who was almost zapped by a military laser, and wrote, almost instinctively, "It passed close, so close he could smell the ozone."

Could high powered lasers (or any energy weapon) in air make ozone? In the future, though; not now.
Yes, high-power lasers could. Many people think air is absolutely transparent and light passes through it without lost. But there is a tiny, little bit of lost energy which is converted to heat. But for a powerful light, like a military laser, a tiny, little bit becomes a big bit. This could ionize the air; create ozone; even create a plasma. And a really big laser could even produce a thunderclap. So, yes, it could happen.
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Old 14th March 2012, 12:27 AM   #111 (permalink)
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Re: Need a scientist?

Thanks, goldhawk. It stays in then.
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Old 21st March 2012, 11:44 PM   #112 (permalink)
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Re: Need a scientist?

Me again. I need to set a booby-trap in a laboratory. It has to fit in a flask, 1-2 litres capacity, and be big enough to knock over three people clustered around it.

So far, I've written it as metallic sodium landing in water. This can cause explosions ( see video http://periodictable.com/Stories/011...umParty06.html ) with amounts of sodium that fit the story, but I'm not sure if 2 litres of water will do the job.

My question is, name two other chemicals, commonly found in a lab (any lab) which when mixed will cause a big enough explosion.
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Old 22nd March 2012, 12:28 AM   #113 (permalink)
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Re: Need a scientist?

The only thing I can think of is Iodine dissolved in Ammonia and left to evaporate; leaves behind a very (desperately) unstable explosive crystal. But it has to be allowed to evaporate first and I'm not sure how much ammonia would be required to make a significant amount.

Used to be a great favourite prank in the chemsitry labs at school. Dissolve the iodine in the ammonia and then sprinkle over the floor. 15 minutes later walking across the floor sets off loads of firecrackers.
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Old 22nd March 2012, 11:17 AM   #114 (permalink)
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Re: Need a scientist?

Thanks, Vertigo. My character has to do it quickly, so Iodine and Ammonia may not suit. Downgrading the extent of the explosion may work with my sodium/water. Instead of throwing them about, I can just have them blinded or stunned.
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Old 23rd March 2012, 04:04 PM   #115 (permalink)
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Re: Need a scientist?

A lump of metallic sodium will just whizz round the surface of the water producing hydrogen (I remember from O-level chemistry – a very long time ago). A similar reaction with potassium creates enough extra heat to ignite the hydrogen which is very pretty, but hardly incapacitating. Binary explosives involving mixing things such as nitromethane and ethylene diamine require a detonator; actually, it's quite difficult to get a worthwhile explosion with an open vessel, as the shock wave tends to dissipate before it's properly developed; need the enclosure.

With an easily available acid, some carbonate (sodium, potassium calcium, magnesium, whatever you've got on hand) and a drop of detergent you can produce vast quantities of stinging foam, but no actual explosion; or how about some noxious gas, choking everybody (chlorine's the easiest, but far from the only choice). You can manage that with widely available household chemicals. and rushing from the room unable to breath, and with eyes streaming would surely distract the attention.
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Old 23rd March 2012, 06:41 PM   #116 (permalink)
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Re: Need a scientist?

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Anyone know if your mining for turquoise would acid drainage be a problem? I understand what acid drainage is, but most research has looked at coal and metal mining. I figure it would be the same since turquoise is usually found with/same family as copper. Since I am more of restorer (stream restoration, fixing acid drainage, and what not) and not a full chemist/geologist, I figured I should ask first.

Thoughts?
May be a tad late for this but I think I can help Most ore mining will involve some sort of waste, called tailings, which is usually stored in a tailings pond. These can be huge and they're usually highly acidic and extremely dangerous (hence as I expect you know, the need for making sure the ponds are very, very leak-proof). It's pretty much inescapable - you're digging this stuff out the ground to get a tiny end product, what happens to the rest of it? Spoil heaps can also be huge and dangerous, if not properly secured bad weather can cause slumps and huge scale destruction.

Hope it helps! Geologist(ish) here for all your geological needs.
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Old 25th March 2012, 11:26 PM   #117 (permalink)
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Re: Need a scientist?

Quote:
Originally Posted by allmywires View Post
May be a tad late for this but I think I can help Most ore mining will involve some sort of waste, called tailings, which is usually stored in a tailings pond. These can be huge and they're usually highly acidic and extremely dangerous (hence as I expect you know, the need for making sure the ponds are very, very leak-proof). It's pretty much inescapable - you're digging this stuff out the ground to get a tiny end product, what happens to the rest of it? Spoil heaps can also be huge and dangerous, if not properly secured bad weather can cause slumps and huge scale destruction.

Hope it helps! Geologist(ish) here for all your geological needs.
Thank you for the information. I had no idea about the tailings, and especially tailing ponds. A tailing pond leaking can provide a very realistic reason on why all the water is being ruined.
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Old 8th April 2012, 04:02 PM   #118 (permalink)
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Re: Need a scientist?

How powerful is an explosive based on flour mixed with air? In my WIP, a beseiged castle uses flour barrels as an improvised defense. The intended result is the destruction of incoming seige equipment and the first couple of lines of the enemy army. The more traditional route of oil vats + fire isn't really an option in this scenario.
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Old 8th April 2012, 04:52 PM   #119 (permalink)
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Re: Need a scientist?

Quote:
Originally Posted by MemoryTale View Post
How powerful is an explosive based on flour mixed with air? In my WIP, a beseiged castle uses flour barrels as an improvised defense. The intended result is the destruction of incoming seige equipment and the first couple of lines of the enemy army. The more traditional route of oil vats + fire isn't really an option in this scenario.
There's quite a lot of you tube stuff on this one.

Google 'flour as an explosive' ...
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Old 8th April 2012, 06:49 PM   #120 (permalink)
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Re: Need a scientist?

Sitting in a barrel it is not particularly explosive. Give it a good bashing about in an enclosed space like a room, so that the air is filled with flour dust and now it is very very explosive. It needs to be dispersed/suspended in the air (or any oxygen carrying atmosphere). In fact any flammable material in a fine powder suspended in air will be explosive.

I worked in an old water powered (!!) flour mill when I was a kid back around '71 and everything tended to be made of brass to avoid risk of sparks. Any naked flame or cigarette anywhere need the mill was just a little forwned upon

However try and set fire to a bag/barrel of flour and the best you are likely to get is a slow smolder.
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