Sentences with phrase «millions of chemical reactions»

Not exact matches

With their chemical collection, the researchers could then start fishing: to find out if a target protein would be caught on one of the «fish hooks,» the researchers put the collection of all 35 million compounds in a reaction vessel containing the protein on a carrier.

The oldest layers from around 850 million years ago are largely composed of silt, or rock bits that have undergone little chemical reaction.

Pound for pound, nuclear explosives — which derive their power from runaway chain reactions in their radioactive fuel — carry about a million times the energy density of chemical explosives.

These reactions play a huge role in the catalysis - driven creation of common chemical platforms such as methanol, which is produced on the order of 10 million tons per year as raw material for chemicals production and for uses like fuel.

In terms of the potential for life, he said the only possible drawback is that due to its size, it only take about 250 million years for the entire ocean to be recycled through the rock — and once this is done, the number of chemical reactions that take place becomes very limited.

Today, photosynthesis is considered «the most important chemical reaction on earth», providing food for humans and animals, releasing oxygen for them to breathe — and millions of years later, this process provides fossil fuel in the form of oil, coal and natural gas, as Michel likes to point out.

Though rarefied by Earth standards, interstellar clouds like this one can enable complex chemical reactions over time scales of hundreds - of - thousands or even millions of years.

«Though very rarefied by Earth standards, these interstellar clouds are the sites of complex chemical reactions that occur over hundreds - of - thousands or millions of years,» said Jan M. Hollis of the NASA Goddard Space Flight Center in Greenbelt, Md. «Over time, more and more complex molecules can be formed in these clouds.

Once in the body, chemicals and toxic metals can multiply the production of harmful free radicals (by up to one million times) and cause deadly chain reactions.

; black mold on the back of a Bay Tree leaf that is really a chemical reaction from the poop of an aphid sucking the leaf's sugar while the symbiotic relationship has endured for millions upon millions of years?