Word: nitrogenous
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...hydrogen nucleus moving at terrific velocity with energy of 200 million electron volts. When it strikes the earth's atmosphere it breaks up either by explosion or collision and, like an earthbound skyrocket, forms a spray of smaller particles, called mesotrons. These in turn, colliding with oxygen and nitrogen molecules of the air, produce the electron showers on earth...
...Vigneaud of Cornell and his colleagues identified it as an animal vitamin in 1940. The possible molecular patterns ran into millions. Last January, Dr. Du Vigneaud and colleagues were able to announce that the possible molecular patterns had been reduced to five; then when the position of the nitrogen atoms was ascertained, these were...
Cattle fed on synthetic urea like it and grow fat. This announcement from the University of Wisconsin last week concluded its five-year study of the nutritive value of synthetic urea, opened a new era in feeds, perhaps in foods. Urea is a reasonably priced, simple nitrogen compound made chemically from nothing more than ammonia and carbon dioxide. Not a protein, synthetic urea is so closely related to protein that it can replace a major part of the vegetable proteins in cattle feed. Urea is manufactured in large quantity for use in many types of plastics and as a rich...
...Aller '39, reported to the American Astronomical Society last week that star "shells" are made of the same elements as stars themselves. They found that the planetary nebulae, which are great clouds of gas surrounding the very hot O-type stars, are composed chiefly of hydrogen, helium, carbon nitrogen, and oxygen...
These are the same five elements which play the important role of furnace men in the sun and most other stars. In the well-established carbon cycle, originally proposed by Dr. Hans Bethe of Cornell University, hydrogen is the fuel and helium the ash of stars, while carbon, nitrogen, and oxygen are the elements which keep the process going...