A Quote by John Dalton

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.

John Dalton

Quote Topics

According Air Also Cause Circumstances Cold Consider Countries Currents Degree Doubt Greater Heavier Hence Less Like Longer Masses None Now Object Ordinary Place Quantity Rain Rains Reason Reason Why Saturated Saturation Summer Takes Temperatures Than Then Two Unequal Vapour Warm Warmer Why Winds Winter

Quote Author

John Dalton
British - Scientist
September 6, 1766 - July 27, 1844

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.

Swami Vivekananda

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.

Robert Hooke

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.

Joseph Black

Some of the most intriguing new research is in the area of extreme weather events and rainfall. A recent study by German scientists published in Climatic Change projects that extreme precipitation will increase significantly in regions that are already experiencing extreme rainfall. Man-made global warming has already increased the moisture content of the air worldwide, causing bigger downpours. Each additional degree of temperature increase causes another seven percent increase in moisture in the air, and even larger downpours when storm conditions trigger heavy rains and snows.

Al Gore

Without any doubt, the regularity which astronomy shows us in the movements of the comets takes place in all phenomena. The trajectory of a simple molecule of air or vapour is regulated in a manner as certain as that of the planetary orbits; the only difference between them is that which is contributed by our ignorance. Probability is relative in part to this ignorance, and in part to our knowledge.

Pierre-Simon Laplace

If the world is a precipitation of human nature, so to speak, then the divine world is a sublimation of the same. Both occur in one act. No precipitation without sublimation. What goes lost there in agility, is won here.

Novalis

You see, if the height of the mercury [barometer] column is less on the top of a mountain than at the foot of it (as I have many reasons for believing, although everyone who has so far written about it is of the contrary opinion), it follows that the weight of the air must be the sole cause of the phenomenon, and not that abhorrence of a vacuum, since it is obvious that at the foot of the mountain there is more air to have weight than at the summit, and we cannot possibly say that the air at the foot of the mountain has a greater aversion to empty space than at the top.

Blaise Pascal

Winter regularly takes many more lives than any heat wave: 25,000 to 50,000 each year die in Britain from excess cold. Across Europe, there are six times more cold-related deaths than heat-related deaths...by 2050...Warmer temperatures will save 1.4 million lives each year.

Bjorn Lomborg

There is a distinct layer between the Earth and the universe, which is extremely black. Slowly, the entire universe starts to look 3D, like you can fly through it rather than this sphere of blackness overhead. And when you're above the atmosphere, there isn't water vapour in the air to make things foggy.

Sunita Williams

The history of the Roman Empire is also the history of the uprising of the Empire of the Masses, who absorb and annul the directing minorities and put themselves in their place. Then, also, is produced the phenomenon of agglomeration, of "the full." For that reason, as Spengler has very well observed, it was necessary, just as in our day, to construct enormous buildings. The epoch of the masses is the epoch of the colossal.

Jose Ortega y Gasset

We've lost half the summer sea ice in the Arctic. We've wiped out an enormous percentage of the world's coral reefs. We see huge changes in the planet's hydrology already, the cycles of drought and flood both amped up because warm air holds more water vapor than cold. These things are happening with a one-degree increase and going to two degrees won't be twice as bad, the increase in damage won't be linear, it most certainly will be exponential. So it was precisely the wrong moment to elect Trump.

Bill McKibben

There's virtually nothing to stop the cold air from off of Hudson Bay from flowing down across the midlands. So you get good contrast: the warm air coming up -- the cold air coming down -- and where they meet is your typical frontal location.

Joe Schaefer

Extreme precipitation is likely to increase with rising temperatures because of growing atmospheric humidity, leading to a higher risk of flash flooding nationwide.

Tatiana Schlossberg

Well, gentlemen, do you believe in the possibility of aerial locomotion by machines heavier than air? ... You ask yourselves doubtless if this apparatus, so marvellously adapted for aerial locomotion, is susceptible of receiving greater speed. It is not worth while to conquer space if we cannot devour it. I wanted the air to be a solid support to me, and it is. I saw that to struggle against the wind I must be stronger than the wind, and I am.

Jules Verne

All the students have shown more advance in two months of summer study than they have in a year of ordinary instruction, largely due to their free and wholesome life in the open air.