Sentences with phrase «particular chemical element»

Because it turned out you need less of that stuff — that particular chemical element.

Stable isotopic compositions — variants of particular chemical elements — of such remains, recovered from soil and lake sediment, may help us better understand climate change over a long span of time.

Not exact matches

Since different elements and compounds absorb light at characteristic wavelengths, astronomers can determine what chemicals make up a planet's atmosphere by measuring the relative amounts of light that come in at particular wavelengths.

These observations were of particular interest because they could provide information about the chemical composition of the matter emerging from the merger and, astronomers hoped, might help solve a long - standing celestial mystery: the origin of the universe's heavy elements.

Registry parts include operators, which are segments of DNA to which repressor proteins bind to prevent gene transcription; cell - cell signaling elements, which produce defined outputs in response to specific chemical inputs; and riboregulators, which can be used to suppress the expression of particular genes by preventing translation of proteins they express.