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QI - What's The Commonest Metal In The Human Body?

Sagemind says...

Animals and humans have similar evolutionary backgrounds. This outlines some of the elements in the structure of animals and humans.

Macro Elements
* Calcium (Ca)
* Phosphorous (Ph)
* Magnesium (Mg)
* Sodium (Na)
* Potassium (K)
* Chlorine (Cl)
* Sulfur (S)

Micro Elements
* Iron (Fe)
* Copper (Cu)
* Manganese (Mn)
* Iodine (I)
* Zinc (Zn)
* Selenium (Se)
* Fluorine (Fl)
* Cobolt (Co)
* Molybdenum (Mo)
* Chromium (Cr)

Other Elements (These elements are all toxic at high levels)
* Lead (Pb)
* Nickel (Ni)
* Silicon (Si)
* Vanadium (Vn)

http://wiki.answers.com/Q/What_is_the_role_of_metals_in_human_body

QI - What's The Commonest Metal In The Human Body?

mauz15 says...

Yeah Calcium is a metal, but the inorganic part of bones (bone is 2/3 inorganic matter and one third of organic) is made primarily of hydroxyapatite (85%), which is a crystallized form of the Calcium Phosphate salt. The rest of the inorganic part is Calcium Carbonate, and small amounts of magnesium, fluoride, sulfate, potassium, etc.

Chloride by itself is a deadly gas, sodium by itself is a very volatile metal. But if you get sodium chloride the result is table salt. In the same way, Calcium by itself is a metal and therefore would behave like one, but when it gets together with phosphate in the right combination you get the main component of bones.



>> ^ForgedReality:
Calcium is a metal? O.O Why doesn't everyone set off metal detectors then? How do people work around huge magnets, like in a wrecking yard, without being stuck to them? Why don't bones rust? Why don't bones make sparks when a bone saw is applied? Why in the hell do some people think it's a good idea to put onions in when making a tuna fish sandwich?

Molten Aluminum + Lab Techs = Fail

robbersdog49 says...

>> ^Gabe_b:
Doesn't pure Aluminum react violently with air? I vaguely remember from highschool science my teacher say that Aluminum you find in common use is covered by an oxidized layer, but if you can ever get a fresh piece, thats been stored in a medium like oil or turps, as soon as you pull it out it will burst into flames. I think he may have even demonstrated. The way it's burning after the flare up kind of suggest that reaction might be going on.


No, aluminium is a lot more stable than that. Other metals will react with air and moisture like potassium.

There's a very easy test of this. Get something aluminium and scratch the surface, revealing non-oxidised aluminium underneath. Watch for the flames...

The Vice Guide to Travel: Chernobyl

Dog Has a Crappy Diet (Dog Whisperer)

LadyDeath (Member Profile)

bamdrew says...

"Of course"? I'm sorry for being unconvinced, but there was no part in the clip that showed the dog behaving or not behaving. It was just 'do this and it will work because the dog will think about eating shit but remember how he could be getting what he gets out of eating shit from you instead'. I don't understand how he couldn't show the dog not eating shit, I guess.

The full story is I've defended this gent more than once to veterinarian friends, because he'll start with some crazy-ass dog and then leave with a reasonable dog and family that knows how to treat the dog better. But he makes it hard sometimes, and this is one of those times ('obviously it was the potassium in the shit that he wanted, thats why he wanted bananas as a replacement' wtf?!).



In reply to this comment by LadyDeath:
In reply to this comment by bamdrew:
hmm... i usually like these, but this one... hmmm...

... i mean, if it works, cool... but... good luck




well this nothing uncommon in dogs just so you know and of course is a great video how to teach a dog not to do it

Alkali Metals: Violent Reactions

siftbot says...

Tags for this video have been changed from 'alkali, metals, lithium, sodium, potassium, rubidium, caesium, water, reaction' to 'alkali, metals, lithium, sodium, potassium, rubidium, caesium, water, reaction, chemistry' - edited by mauz15

☞ Gummi Bear Genocide Will Be PAINFUL!!!

*Determination

HeadOn: Crimson Executioner Remix

Crosswords says...

I always figured it was like icy hot (having never actually used the product myself). It wasn't until a week ago I was informed it was just a stick of wax. Apparently there's more in it than just wax, but I'm guessing those dilutes are an infinitesimal amount.

From da wiki: Chemical analysis has shown that the product consists almost entirely of wax. The two ingredients listed as "active", white bryony (a type of vine) and potassium dichromate (a known carcinogen), are diluted to 1 ppt and 1 ppm respectively.

EDIT: http://www.videosift.com/video/James-Randi-explains-Homeopathy

Apparently the solution of White Bryony in headon is 12X or 1:1,000,000,000,000, for comparison the legal amount of arsenic that can be in drinking water is

Sexy Dancing vs Peak Oil

jwray says...

U-238 is 138 times more abundant than U-235. U-238 breeder reactors work, but are more expensive to operate than U-235 reactors. Reprocessing spent fuel to extract the half that's unused is currently more expensive than mining fresh uranium. But as oil runs out, energy prices will go up, and more expensive ways of generating energy will expand. Uranium power generation based on breeder reactors could power the world's current rate of energy consumption for at least a thousand years with current proven uranium reserves, but nobody's even bothered to look at more expensive ways of recovering uranium. In the long run solar will have to be part of the solution. The earth receives 4*10^24 Joules of energy per year from the sun, while our worldwide fossil fuel consumption in 2004 was 4*10^20 Joules.

Solar thermal generator plants can store energy via phase change to be more reliable. For example, Solar Tres stores 6,250 tonnes of molten sodium nitrate and potassium nitrate (assuming a density of 3g/ml that's about a 10m x 10m x 20m tank). This is enough to provide a 16 hour buffer for the generator (600 megawatt-hours). So it can generate continuously at peak capacity except in winter. Electricity demand is always higher in summer than in winter, because in the winter your random electrical appliance electricity use supplements your environmental controls (almost all used electricity is converted to heat) while in the summer all of your electricity use works against your environmental controls (generates more heat that your AC has to remove).

If about 0.1% of the surface of the earth were converted to solar power stations, that could supply all of our current energy use. But the rate of consumption is increasing exponentially as population increases exponentially and THAT MUST STOP. Who's going to vote for the global 2-child policy that will probably be necessary to avoid annihilation of the environment and subsequent annihilation of mankind? Mankind needs another big round of moral progress to save itself from itself.

10 Worst Foods in Nutritional Value

jwray says...

potatoes = fail

top 10 would be
1. milk
2. hummus
3. guacamole (made from avocados, garlic, onions, tomato, lemon, and a bit of salt ONLY -- nothing else)
4. chicken
5. whole-grain pasta
6. salmon or tuna
7. bananas
8. supreme pizza in moderation
9. veggie stir-frys
10. canned soup (with potassium instead of sodium)

The Story of the Universe Told in Less Than 4 Minutes

kronosposeidon says...

So what this video tells me is that during its first seconds, because hydrogen was created, the universe was gay. Well that explains a lot.

Yet this alleged "theory" has no explanation for the creation of douchebags. Seems fatally flawed to me.

BTW, during the first billionth of a second the universe looked like the T-1000. Another coincidence? Ask your local librarian. Or ask her out on a date. Smart chicks know how to work teh cock. That's what my best friend's cousin told me.

King Missile - Gay/Not Gay

How It's Made - Maple Syrup

budzos says...

Between cub scouts and class trips, I've been to a sugar shack three times. It was fun every time. There is no smell quite like large vats of boiling sap. It's also very cool when they pour strips of boiling sap onto the snow, and then you roll it up around a popsicle stick to make a fresh maple popsicle.

Was anyone else fairly surprised to learn that maple sugar is a source of calcium, magnesium, and potassium? It's funny because sometimes I get a craving for maple syrup and just start pouring spoonfuls, and like a lot of my favourite snacks I find out it's high in potassium. Weird. Did you guys know that any orange powder cheese coated product is usually a good source of potassium? Cheetos are friggin high in potassium!



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