Sentences with phrase «contained normal air»
When these mice were housed in chambers that contained normal air containing 21 percent oxygen, the equivalent of what a person would breathe at sea level, they developed brain lesions and had a median survival length of 58 days.
http://www.hhmi.org/ Not exact matches
When hydrocarbon - based fuels like methane are burned in normal air, nitrogen gets mixed in with the combustion product — flue gases from conventional gas power stations contain as little as 3 percent CO2 — which makes scrubbing carbon from power plant emissions difficult and expensive.
Then, the team placed the snails in an uncrowded beaker containing water with a normal level of calcium and trained the snails to not come up for air — no big deal for pond snails, who can also get oxygen by absorbing it underwater through their skin.
«At normal atmospheric pressure and temperature, where air is 21 percent O2, the material already contains oxygen and can not absorb more,» McKenzie explains.