Word: mediums
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Dates: during 1960-1969
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...year, and cost the Government an extra $700 million to carry its debt. The cost to private borrowers has run into the billions, is growing so worrisome that even housebuilders, who once opposed raising the ceiling, are now having serious second thoughts. The Treasury's medium-term "magic fives" of last fall (TIME, Oct. 12) drew some $200 million out of New York savings banks alone, money that ordinarily would have gone for mortgages...
...problem is getting worse with each passing month. It is true, as some Congressmen say, that no long-term debt comes due for ten months. But there will be almost $80 billion in short-and medium-term borrowing. By November of 1961, so much debt will drop down into the one-year-and-under category that the figure will top $92 billion, up from $81 billion in December 1959, in itself equal to the alltime record. The Government's only recourse will be more short-term financing, probably at higher rates...
Sueoka grew the algae in a nutrient medium containing an isotope of nitrogen with an extra neutron in its nucleus. Since DNA contains nitrogen, newly synthesized cells become "labeled" or marked with the heavy nitrogen...
After allowing them to divide in the medium for several days, Sueoka transferred the cells with heavy DNA to a medium with normal nitrogen. Two hours later he extracted some DNA from these cells and found that it had a molecular density half-way between heavy and normal DNA. It appeared as though the heavy DNA had separated into two heavy strands and each had manufactured a new partner containing normal nitrogen...
There was no more normal DNA, but after six hours the medium DNA had divided to produce some original and normal DNA that again confirmed the theory of reproduction...