Sentences with phrase «dense than cold»

Warm water is less dense than cold water, so the cold water in the water balloon was more dense than the hot water and so sank.
Warm air is more dense than cold air, so it holds more moisture.
Hot air is less dense than cold air, and the hotter the temperature, the more speed a plane needs to lift off.
But your link shows that warm saltier water can be denser than colder fresher water, I should have remembered that as it is one of the factors that drives the thermo - haline circulation.
The air particles speed up, in other words their temperature increases, the hotter air is less dense than colder air above and hence moves up (convection).

Not exact matches

The CPET trays and the cold party cups are 45 percent lighter than their solid plastic counterparts and are respectively 70 percent and 60 percent less dense, resulting in lower thermal conductivity.
The different dependence on temperature and density of the recombination lines and the collision lines allows us to infer that the metal rich component is a much colder and denser gas than the major fraction of the gas in the nebula.
And around Antarctica, where even the surface ocean water is already quite cold and dense, some of that water in the ocean depths, which is also carbon rich, eventually warmed enough so that it became less dense than the water above it.
There it is likely to be buffeted by winds of particles from supernovas that will be colder and denser than the solar wind, though still not as dangerous as Jupiter's radiation belts.
Light travels faster in the hot, thin air close to the road than it does in the cold, dense air above, and that difference in speed is what causes it to shift direction as it crosses the boundary between the two.
«This indicates that, rather than a dense region in the centre of the galaxy cluster, as predicted by the cold dark matter model, there is a much shallower central density.
Microclimate is the climate near the ground which can be colder or warmer than in the free atmosphere, depending on local topography (e.g. north vs. south side of a hill, higher vs. lower elevation) and vegetation (e.g. young sparse vs. old dense forest).
Insulating grains, however, such as less - dense silicates, have a hot, sun - facing side, where departing gas molecules will give a bigger shove than those on the cold side.
Imagine that such a black hole is orbited by a wide, cold disk of material — like the rings of Saturn but larger than our entire solar system — and that this disk possesses an almost transparent outer region and a denser inner region.
Using climate models at the Laboratoire de Météorologie Dynamique, François Forget (CNRS) and Martin Turbet (UPMC) show that, with a cold climate and an atmosphere denser than it is today, ice accumulated at around latitude 25 ° S, in regions corresponding to the sources of now dry river beds.
Data about the magnetic field of the photosphere, which is colder and denser than the corona, were collected by the satellite and enabled the researchers to calculate the evolution of the magnetic environment in the corona during this period of time.
Cold water is denser than warm water, and salt water is denser than freshwater.
The computer simulations revealed that supermassive black holes can form much faster than previously believed if their growth is fed by cold and dense accretion streams.
But the point is that I am using high reps with moderate weights nowadays and I am not getting barely any mass on me at all, and better than that is that my muscles are getting quite denser and denser everytime I train, and I don't even train that often (although I am planning to turn up the heat on my training in the meantime, probably when I move out to a southern part of the world, as I don't like how cold it is here most of the year where I live now:P).
Keeps hot air out of intake system and delivers denser air at colder temps than factory air intakes
Because it originated in cold climates, Siberians have a thicker coat than most other breeds of dog, made up of a dense cashmere - like undercoat and a longer, coarse top coat.
temperature of the water — cold water is more dense than warm water, so it sinks.
These corals — surviving at depths from 540 to more than 9,840 meters below sea level — are some of the most diverse, dense, and pristine assemblages of cold - water corals in the world.
Cold water is more dense than warm water.
Cold air is more dense than hot air so itsinks and warm air is less dense so it rises.
Since cold air is more dense, atmospheric pressure decreases more rapidly with height on the poleward side of the polar front than on the warmer tropical side.
Factor in the fact that soils amd water are at least ~ 1000 times more dense than air and the idea that gases can heat warmer surfaces like soils and especially water whilst most of the atmosphere is actually much colder just seems - well — ludicrous.
Warm air holds more moisture, it is less dense so lighter than cold air.
The air around being colder therefore denser and heavier, with more condensed volume, will sink; gravity having less of a grip on the hotter less dense rising expanding lighter volume with less mass than it does on the denser colder heavier with more mass.
A volume of air heated will become less dense expanding in volume and rise because lighter than the air around it which is colder.
Since this cold water is denser than the hot water it's replacing, it potentially provides more pore space for storing carbon dioxide.
So isn't the whole issue really revolving around how dense the atmosphere is at any given time and has atmosphere during the latest warm spell been denser than say in the 1970s during that cold spell?
, when volumes of air are heated they expand and now lighter than air rise taking away heat from the surface, and colder volumes of air, of the fluid gas air around them, being heavier because colder so more condensed will sink to the surface flowing beneath the volumes of less dense air.
I should clarify that water does not necessarily need to be less dense to rise if it's being displaced by water at a greater pressure gradient, but it's still statistically more likely for cold water to sink than warm water.
Cold water sinks readily in polar regions, as the surface water tends to be closer to freezing, as well as being fresher from ice melt, and therefore less dense than the inflowing currents, which are in turn are rendered more saline by the fresh water freezing out.
Cold water will sink, moving warmer water upwards, or along in a current until it reaches a position where it's less dense than the water above, at which point it rises.
Thus, a lapse rate of -12 K / km would be extremely unstable because the colder air would be denser than the warm air below it.
You can rest assured though that the top will usually be warmer than the bottom since colder water is denser.
(Colder and / or saltier seawater is denser than warmer and / or less salty seawater.)
A better question is does AGW slow the rate at which cold, dense, brines flow into the bottom of the oceans, and as a supplementary, is apparent warming due to the normal polar downwelling brines being less dense than normal and are being injected at 700 - 2000m rather than lower down.
... similarly dense clouds, if very high, though they equally intercept the communication of the earth with the sky, yet being, from their elevated situation, colder than the earth, will radiate to it less heat than they receive from it, and may, consequently, admit of bodies on its surface becoming several degrees colder than the air.
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