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shared by icam45 on 29 May 14 - Cached

They're large molecules called polymers, which are composed of repeating units of shorter carbon-containing compounds called monomers
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Most plastic is chemically
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it doesn't decay. Therefore, plastic disposal poses a difficult and significant environmental problem
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shared by charlottecr on 30 May 14 - No Cached

hthalates are a group of chemicals used to make plastics more flexible and harder to break.
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Once phthalates enter a person's body, they are converted into breakdown products (metabolites) that pass out quickly in urine.
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shared by claireb27 on 27 May 14 - No Cached

generated more energy from fusion reactions than they put into the nuclear fuel,
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The ultimate goal – to produce more energy than the whole experiment consumes – remains a long way off
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with zero carbon emissions during operation and minimal waste
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...4 more annotations...
92 powerful lasers to crush a minuscule amount of fuel so hard and fast that it becomes hotter than the sun.
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The lasers are fired into a gold capsule that holds a 2mm-wide spherical pellet.
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The fuel is coated on the inside of this plastic pellet in a layer as thin as a human hair.
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When the laser light enters the gold capsule, it makes the walls of the gold container emit x-rays, which heat the pellet and make it implode with extraordinary ferocity. The fuel, a mixture of hydrogen isotopes called tritium and deuterium, partially fuses under the intense conditions.
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