A Quote by Joseph Black

What I have related is sufficient for establishing the main principle, namely, that the heat which disappears in the conversion of water into vapour, is not lost, but is retained in vapour, and indicated by its expansive form, although it does not affect the thermometer. This heat emerges again from this vapour when it becomes water, and recovers its former quality of affecting the thermometer; in short, it appears again as the cause of heat and expansion.
Salt water when it turns into vapour becomes sweet, and the vapour does not form salt water when it condenses again. This I know by experiment. The same thing is true in every case of the kind: wine and all fluids that evaporate and condense back into a liquid state become water. They all are water modified by a certain admixture, the nature of which determines their flavour.
The vapour becomes snow, then water, then Ganga; but when it is vapour, there is no Ganga, and when it is water, we think of no vapour in it. The idea of creation or change is inseparably connected with will. So long as we perceive this world in motion, we have to conceive will behind it.
Heat may be considered, either in respect of its quantity, or of its intensity. Thus two lbs. of water, equally heated, must contain double the quantity that one of them does, though the thermometer applied to them separately, or together, stands at precisely the same point, because it requires double the time to heat two lbs. as it does to heat one.
(On the temperature of water in wells) The reason why the water in wells becomes colder in summer is that the earth is then rarefied by the heat, and releases into the air all the heat-particles it happens to have. So, the more the earth is drained of heat, the colder becomes the moisture that is concealed in the ground. On the other hand, when all the earth condenses and contracts and congeals with the cold, then, of course, as it contracts, it squeezes out into the wells whatever heat it holds.
Nature … is, as it were, a continual circulation. Water is rais'd in Vapour into the Air by one Quality and precipitated down in drops by another, the Rivers run into the Sea, and the Sea again supplies them.
There is some CO2-water vapor feedback. But it's not operating on a global scale. The modellers cannot accurately separate water vapour from the effects of clouds and rainfall.
The sun, moving as it does, sets up processes of change and becoming and decay, and by its agency the finest and sweetest water is every day carried up and is dissolved into vapour and rises to the upper region, where it is condensed again by the cold and so returns to the earth. This, as we have said before, is the regular course of nature.
I am a leader, so leaders always get heat. They're always going against the grain. Jimi Hendrix got heat; Bob Marley got heat; Miles Davis got heat. Every great artist got heat. Heat means you're doing something right.
I am a leader. Leaders always get heat. They're always going against the grain. Jimi Hendrix got heat; Bob Marley got heat; Miles Davis got heat. Every great artist got heat. Heat means you're doing something right.
Changes in clouds and rainfall can overwhelm what little effect CO2-water vapour has on temperature.
The hardest metal yields to sufficient heat. Even so must the hardest heart melt before sufficiency of the heat of non- violence. And there is no limit to the capacity of non-violence to generate heat.
The cause of rain is now, I consider, no longer an object of doubt. If two masses of air of unequal temperatures, by the ordinary currents of the winds, are intermixed, when saturated with vapour, a precipitation ensues. If the masses are under saturation, then less precipitation takes place, or none at all, according to the degree. Also, the warmer the air, the greater is the quantity of vapour precipitated in like circumstances. ... Hence the reason why rains are heavier in summer than in winter, and in warm countries than in cold.
Try to understand why it is happening, from where it is coming, where the roots are, how it happens, how it functions, how it overpowers you, how in anger you become mad. Anger has happened before, it is happening now, but now add a new element to it, the element of understanding -- and then the quality will change. Then, by and by, you will see that the more you understand anger, the less it happens. And when you understand it perfectly, it disappears. Understanding is like heat. When the heat comes to a particular point -- one hundred degrees -- the water disappears.
The most convincing proof of the conversion of heat into living force [vis viva] has been derived from my experiments with the electro-magnetic engine, a machine composed of magnets and bars of iron set in motion by an electrical battery. I have proved by actual experiment that, in exact proportion to the force with which this machine works, heat is abstracted from the electrical battery. You see, therefore, that living force may be converted into heat, and that heat may be converted into living force, or its equivalent attraction through space.
One cool judgment is worth a thousand hasty councils. The thing to do is to supply light and not heat. Ay any rate, if it is heat it ought to be white heat and not sputter, because sputtering heat is apt to spread the fire. There ought, if there is any heat at all, to be that warmth of the heart which makes every man thrust aside his own personal feeling, his own personal interest, and take thought of the welfare and benefit of others.
Unfortunately, I'm heat intolerant. I tend not to go in heat, I avoid the bath, I have lukewarm showers - and now I am throwing myself into the heat of Dubai and trying to run.
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