Sentences with phrase «of airborne molecules»

Not exact matches

Moms might give off airborne molecules called pheromones that spur changes in the biochemistry of dads.

They also play a role in the formation of secondary organic aerosols — air pollutants produced when sunlight, organic molecules and airborne chemicals come together and interact.

When airborne molecules bind to the coating (each attracts a different kind of molecule), the surface tension changes, making the cantilever curl up like a piece of paper that's been wet on one side.

On a series of nighttime flights, astrobiologists will soon use an airborne observatory to search newly born stars for molecules essential to the origins of life.

Pheromones are considered to be airborne chemical signaling molecules that are released by humans, animals, and plants into the environment and they can affect the physiology and or behavior of other members of the same species.

I have not the slightest problem with the notion that the airborne fraction of human emissions remains constant, but one shouldn't misinterprete the result: What remains in the atmosphere is a rather fixed percentage of the emissions in mass not of the original molecules.

• Airborne residence time measures how long a MOLECULE of CO2 stays airborne before it is replaced by another CO2 mMOLECULE of CO2 stays airborne before it is replaced by another CO2 moleculemolecule.

The reality is that the author of the head post of this thread foolishly conflated two very different things — the length of time that an average CO2 molecule stays in the air (airborne residence time), and the length of time it takes the elevated CO2 concentration after an injected pulse of CO2 to decay to the pre-pulse concentration (pulse decay time, or e-folding time).

Sadly, you have conflated the average time that an individual CO2 molecule stays in the atmosphere before being replaced (called airborne residence time) with the time it takes the CO2 concentration to return to pre-pulse values after the addition of a pulse of CO2 to the atmosphere (called e-folding time or pulse decay time or atmospheric lifetime).