Word: nitrogenous
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...with wit, imagination and a bold, encouraging vision of both man and nature. His main theme is symbiosis, the intimate association between even the most dissimilar organisms. For example, he points out that bacteria called rhizobia live in the roots of bean plants and enable them to utilize the nitrogen in the soil; without these parasites the plants would die. There are also viruses-small, independent packets of nucleic acids -which Thomas believes may have helped man evolve by transmitting bits of the master molecule DNA from one organism to another. Even the single cells that have combined to form...
...Green Revolution," which only a few years ago brought hope of agricultural self-sufficiency to India and other countries of Asia, has already lost much of its promise. The increase in oil prices has nearly trebled the cost of nitrogen fertilizers and of fuel for irrigation pumps upon which the crops of high-yield rice and wheat rely. Hundreds of thousands of Asia's small farmers who once enthusiastically sowed their fields with the Green Revolution's hybrid strains are now reverting to more traditional methods of cultivation. The harvests are smaller but much less dependent on fertilizers...
...With any luck, you may even be choosing an alternative to death itself. The Cryonics Society of New York is peddling a unique form of insurance against terminal disease: in the event of death caused by fatal illness, your body can be frozen, suspended in a capsule of liquid nitrogen and buried in the hope (no matter how far-fetched) that some day you can be thawed back to life by some future "miracle of science." As an added bonus you will receive "postsuspension counseling (for survivors presumably) on future developments...
...part, designed by Chrysler engineers, is a sensor containing a ball of wax that softens when engine temperature rises to 60° F. The softening frees a valve that recirculates part of the car's exhaust gases through the engine and thereby eliminates some of the harmful nitrogen oxides that are emitted at high temperatures; when the temperature subsides, the wax ball hardens and closes the valve. At first, Chrysler designers placed the wax-ball sensor on the fire wall, a partition that separates the engine from the passenger compartment. There the sensor could measure both engine heat...
...apart. In a pilot project at the University of Notre Dame that processes 20,000 gal. of sewage daily, less than 60 seconds of Sonozone treatment has proved itself capable of destroying 100% of the fecal bacteria and viruses it attacks, 93% of the phosphates and 72% of the nitrogen compounds...