Vegetation is the basic instrument the creator uses to set all of nature in motion.
A wealthy landowner cannot cultivate and improve his farm without spreading comfort and well-being around him. Rich and abundant crops, a numerous population and a prosperous countryside are the rewards for his efforts.
It is almost possible to predict one or two days in advance, within a rather broad range of probability, what the weather is going to be; it is even thought that it will not be impossible to publish daily forecasts, which would be very useful to soci.
It is only fair that prisoners work to pay for at least a part of their food. A regular and reasonable occupation is necessary for their health as well as for maintaining peace and order and for banishing idleness, more dangerous in these sanctuaries
I consider nature a vast chemical laboratory in which all kinds of composition and decompositions are formed.
Rouelle on the possibility of transmuting one element to another said, Ordinary chemists doubt the truth of the principles of this science, but they cannot judge in a matter entirely unknown to them. Although I do not wish to cast doubt on the testim
A man cannot live more than 24 hours unless he has at least three cubic meters of air that is being constantly replaced.
It took them only an instant to cut of that head, but it is unlikely that a hundred years will suffice to reproduce a singular one.
Diminish the mass of evils that afflict the human species, increase enjoyment and well-being. And even if the new routes opened up could prolong the average life of mankind by only a few hours, or even a few days, then the scientist, too could aspire.
The least degree of heat, as long as it is slightly higher than boiling water, suffices for uniting oxygen and hydrogen and carbon and for forming oil and water.
The rocks of the original soil, he wrote, are arranged in perpendicular layers or inclined towards the horizon. They are composed of quartz, granite, shale, slate and talcose.
We have succeeded in observing two laws of the utmost importance, the first is that the increase in the number of heart beats is in quite direct proportion to the sum of the weights lifted to a determined height, the second is that the quantity of vi
One part is absorbed in the blood to compensate for the losses that are constantly taking place through respiration and perspiration, and all the material that Nature cannot use is rejected in the form of excrement.
One succeeds in obtaining an equivalent production at a lower price by improving the arts, trades and agriculture and by developing the physical and moral qualities of workers, farmers and craftsmen.
Let us hope especially that the enthusiasm and exaggerations, which so easily seize men congregated in large groups - affecting human passions and leading the crowd against its own interest, sweeping up in their whirlwind the sage and philosopher as
The definition of the composition of air ensues from this program of research atmospheric air is not an element, that is, a simple body, but a mixture of several gases. Approximately a quarter of atmospheric air is composed by dephologisticated or
Like almost all others began with metaphysical discussions. The theory has advanced but the practical science is still in its infancy and the modern statesman is constantly short of facts on which he can base his speculations.
Since it is the very substance of the animal, it is the blood which transports the fuel.If the animal did not habitually replace, through nourishing themselves,what they losethrough respiration, the lamp would very soon run out of oil and the animal would perish, just as the lamp goes out when it lacks fuel.
Languages are true analytical methods. Algebra, the means of expression which is the simplest, most exact and best adapted to its object, is both a language and an analytical method. In short, the art of reasoning can be reduced to a well-constructed
Languages are true analytical methods.
The art of drawing conclusions from experiments and observations consists in evaluating probabilities and in estimating whether they are sufficiently great or numerous enough to constitute proofs. This kind of calculation is more complicated and more difficult than it is commonly thought to be....
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