Nature, Volume 54Sir Norman Lockyer Macmillan Journals Limited, 1896 |
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Página 25
... experiments on the relative advantages and disadvan- tages of narrow and wide planes . These experiments fully confirm the theory that narrow superposed planes possess greater lifting power per square foot than a single wide plane , a ...
... experiments on the relative advantages and disadvan- tages of narrow and wide planes . These experiments fully confirm the theory that narrow superposed planes possess greater lifting power per square foot than a single wide plane , a ...
Página 352
... experimental work and to profit by it ; and ( 3 ) that all experimental work has been conducted in suitable places . The total number of experiments performed in 1895 was 4679. In 1560 of the experiments performed the animal suffered no ...
... experimental work and to profit by it ; and ( 3 ) that all experimental work has been conducted in suitable places . The total number of experiments performed in 1895 was 4679. In 1560 of the experiments performed the animal suffered no ...
Página 378
... experiments I employed liquid air , boiling under a pressure of io mm . of mercury . The helium was first confined under a pressure of 140 atmospheres , and then allowed to expand till the pressure fell to twenty atmospheres , or in ...
... experiments I employed liquid air , boiling under a pressure of io mm . of mercury . The helium was first confined under a pressure of 140 atmospheres , and then allowed to expand till the pressure fell to twenty atmospheres , or in ...
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