Search Details

Word: carbonization (lookup in dictionary) (lookup stats)
Dates: during 1960-1969
Sort By: most recent first (reverse)


Usage:

Since all the prostaglandins have a closely similar chemical structure--based on a backbone of a ring of 5 carbon atoms to which 15 others are attached--synthesis of all members of the family should be a relatively easy matter. This will make possible their production in large enough quantities for research into their medical uses...

Author: By George R. Merriam, | Title: Harvard Chemists Synthesize Vital Human Hormones Group | 5/24/1968 | See Source »

...purpose of federation was to create a new and distinctive university, not a carbon copy of any existing institution regardless of its reputation. We are seeking to improve the entire university qualitatively, using our present strengths as a foundation...

Author: /time Magazine | Title: Letters: May 17, 1968 | 5/17/1968 | See Source »

...that consumed oxygen as fast as green plants manufactured it. Only by some primeval accident were the greedy organisms buried in sedimentary rock (as the source of crude oil, for example), thus permitting the atmosphere to become enriched to a life-sustaining mix of 20% oxygen, plus nitrogen, argon, carbon dioxide and water vapor. With miraculous precision, the mix was then maintained by plants, animals and bacteria, which used and returned the gases at equal rates. About 70% of the earth's oxygen is thus produced by ocean phytoplankton: passively floating plants. All this modulated temperatures, curbed floods...

Author: /time Magazine | Title: Essay: THE AGE OF EFFLUENCE | 5/10/1968 | See Source »

...create thermal inversions (warm air above cold) that can trap smog for days-a crisis that in 1963 killed 400 New Yorkers. Cars complete the deadly picture. While U.S. chimneys belch 100,000 tons of sulfur dioxide every day, 90 million motor vehicles add 230,000 tons of carbon monoxide (52% of smog) and other lethal gases, which then form ozone and peroxyacetyl nitrate that kill or stunt many plants, ranging from orchids to oranges. Tetraethyl lead in auto exhausts affects human nerves, increasing irritability and decreasing normal brain function. Like any metal poison, lead is fatal if enough...

Author: /time Magazine | Title: Essay: THE AGE OF EFFLUENCE | 5/10/1968 | See Source »

...seems undeniable that some disaster may be lurking in all this, but laymen hardly know which scientist to believe. As a result of fossil-fuel burning, for example, carbon dioxide in the atmosphere has risen about 14% since 1860. According to Ecologist Lamont C. Cole, man is thus reducing the rate of oxygen regeneration, and Cole envisions a crisis in which the amount of oxygen on earth might disastrously decline. Other scientists fret that rising carbon dioxide will prevent heat from escaping into space. They foresee a hotter earth that could melt the polar icecaps, raise oceans as much...

Author: /time Magazine | Title: Essay: THE AGE OF EFFLUENCE | 5/10/1968 | See Source »

Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | Next