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Fairfax Underground
Welcome to Fairfax Underground, a project site designed to improve communication among residents of Fairfax County, VA. Feel free to post anything Northern Virginia residents would find interesting.
Welcome to Fairfax Underground, a project site designed to improve communication among residents of Fairfax County, VA. Feel free to post anything Northern Virginia residents would find interesting.
Helium
Posted by:
Mr. Misery
()
Date: October 07, 2011 12:05AM
does anyone know anything about helium?
Re: Helium
Posted by:
He's Delusional
()
Date: October 07, 2011 12:13AM
WTF? So much for the ban.
Re: Helium
Posted by:
Ellipsis
()
Date: October 07, 2011 06:18AM
He needs a new one; 14 days was insufficient.
He's Delusional Wrote:
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> WTF? So much for the ban.
He's Delusional Wrote:
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> WTF? So much for the ban.
Re: Helium
Posted by:
dr. kutyercockov
()
Date: October 07, 2011 06:20AM
Mr. Misery Wrote:
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> does anyone know anything about helium?
Helium is much lighter than air.
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> does anyone know anything about helium?
Helium is much lighter than air.
Re: Helium
Posted by:
I Got This One
()
Date: October 07, 2011 06:48PM
Discovered : by Hennig Brandt in 1669
Isolated in Hamburg, Germany
Origin : The name is derived from the Greek ‘phosphoros’, meaning bringer of light, because it glows in the dark.
Description :
There are several forms of phosphorus. White phosphorus is manufactured industrially, glows in the dark, is spontaneously flammable when exposed to the air above 30°C and is a deadly poison. Red phosphorus, made by gently heating white phosphorus in the absence of air to about 250°C, does not glow, is stable and is not poisonous. This is the material, mixed with powdered glass, stuck on the side of boxes of safety matches on which the matches must be struck to light them. Phosphorus itself is essential to all forms of life since it is part of DNA, although there are many phosphorus compounds that are essential in the living cell. We take in about 1 gram of phosphate a day, and we store about 750 grams in our bodies, since our bones are mainly calcium phosphate. In the environment and in living things, phosphorus is present as phosphate, which consists of one phosphorus atom at the centre of four oxygen atoms. Phosphates are used in fertilisers and detergents and in metal coatings to prevent corrosion. However, excess phosphates in rivers and lakes cause an over-growth of slimy green algae, which robs the water of its life-supporting oxygen.
Isolated in Hamburg, Germany
Origin : The name is derived from the Greek ‘phosphoros’, meaning bringer of light, because it glows in the dark.
Description :
There are several forms of phosphorus. White phosphorus is manufactured industrially, glows in the dark, is spontaneously flammable when exposed to the air above 30°C and is a deadly poison. Red phosphorus, made by gently heating white phosphorus in the absence of air to about 250°C, does not glow, is stable and is not poisonous. This is the material, mixed with powdered glass, stuck on the side of boxes of safety matches on which the matches must be struck to light them. Phosphorus itself is essential to all forms of life since it is part of DNA, although there are many phosphorus compounds that are essential in the living cell. We take in about 1 gram of phosphate a day, and we store about 750 grams in our bodies, since our bones are mainly calcium phosphate. In the environment and in living things, phosphorus is present as phosphate, which consists of one phosphorus atom at the centre of four oxygen atoms. Phosphates are used in fertilisers and detergents and in metal coatings to prevent corrosion. However, excess phosphates in rivers and lakes cause an over-growth of slimy green algae, which robs the water of its life-supporting oxygen.
Re: Helium
Posted by:
Chronic
()
Date: October 07, 2011 07:27PM
Mr. Misery Wrote:
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> does anyone know anything about helium?
thats funny as shit!
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> does anyone know anything about helium?
thats funny as shit!