United States or South Sudan ? Vote for the TOP Country of the Week !
"All light is vibration; the greatest motions which are perceptible to the eye, being known as violet. Now there are still more rapid vibrations than are put forth to make the violet rays, which are called the actinic rays, and are the ones which affect the chemicals so acutely." "Is it then possible to photograph with a light that is not perceptible to the eye?"
One end contained a small oval opening, but the men from the Earth looked in vain for any creature to emerge from it. The doctor silently set to work with his apparatus. From an air-tight double-doored compartment he obtained a sample of the ether outside the car; and with the aid of previously arranged chemicals, quickly learned the truth. There was no air.
A few weeks later placards giving formulae for the making of bombs were actually posted up on the doors of schools and other buildings, and this was followed by a theft of dangerous chemicals from a Kolhapur private school.
In August, 1915, three special Committees were formed; one under M. Kling for problems from the front, whose organisation was responsible for a volume of exceedingly reliable identifications of enemy chemicals of great use to the Allies; another under M. Moureu for offensive research, whose brilliant organic investigation characterised later French developments, and the other under M. Vincent, for research on protection.
But first, I need that ax and some other things. Can you spare me for a while, now?" "I'd rather go along, too," she answered wistfully, from the window-sill where she sat resting. "No, not this time, please!" he entreated. "First I've got to go 'way to the top of the tower and bring down my chemicals and all the other things up there.
For nearly a year the two of us laboured over plans for the laboratory building and lists of the necessary books, instruments, apparatus, glassware, chemicals and other supplies. At the end of this time we submitted to the commission what I do not hesitate to say was the most complete estimate for a large project which ever came before it.
Manganese and iron provided the coloring matter, and through pressure these chemicals were forced into the grain of the wood, which gradually was absorbed and its cell structure replaced by ninety-nine per cent silica and the other per cent iron and manganese. Erosion brought what we see to the top. We have reason to believe that the earth around here covers many thousand more."
Few people realised the developments which chemical warfare would produce. The early production of chemicals for gas warfare was grouped under some such designation as trench warfare stores, and graded in order of importance, from the point of view of supply organisation with catapults and spring guns, flame projectors and body shields!
I had an earnest desire to acquire the art and mystery of practical photography. I bought the necessary apparatus, together with the chemicals; and before long I became an expert in the use of the positive and negative collodion process, including the printing from negatives, in all the details of that wonderful and delightful art.
Very, and the Freres Provencaux, pot-houses in jest. Well, neither those infamous pot-houses nor our most scientific cooks can make us a sauce like this; mellifluous! Some give you clear water soured with lemon, and the rest drugs, chemicals." Pillerault tried throughout the dinner to fathom this extraordinary being; finding only a void, he began to think him dangerous.
Word Of The Day