The Ingenious Dr. Franklin: Selected Scientific Letters of Benjamin FranklinUniversity of Pennsylvania Press, 1956 - Всего страниц: 244 |
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Стр. 65
... rarified by heat , and condens'd by cold , i.e. the same quantity of air takes up more space when warm than when cold . This may be shown by several very easy experiments . Take any clear glass bottle ( a Florence flask stript of the ...
... rarified by heat , and condens'd by cold , i.e. the same quantity of air takes up more space when warm than when cold . This may be shown by several very easy experiments . Take any clear glass bottle ( a Florence flask stript of the ...
Стр. 66
... rarified air will rise in common air , till it either comes to air of equal weight , or is by cold reduc'd to its former density . A fire then being made in any chimney , the air over the fire is rarified by the heat , becomes lighter ...
... rarified air will rise in common air , till it either comes to air of equal weight , or is by cold reduc'd to its former density . A fire then being made in any chimney , the air over the fire is rarified by the heat , becomes lighter ...
Стр. 97
... rarified in passing thro ' this flame rose in the ballon , swell'd out its sides & fill'd it . The persons who were plac'd in the gallery made of wicker , and attach'd to the outside near the bottom , had each of them a port thro ...
... rarified in passing thro ' this flame rose in the ballon , swell'd out its sides & fill'd it . The persons who were plac'd in the gallery made of wicker , and attach'd to the outside near the bottom , had each of them a port thro ...
Содержание
Daylight Saving | 17 |
Rules of Health and Long Life | 35 |
Choosing EyeGlasses | 50 |
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The Ingenious Dr. Franklin: Selected Scientific Letters of Benjamin Franklin Nathan G. Goodman Ограниченный просмотр - 2011 |
The Ingenious Dr. Franklin: Selected Scientific Letters of Benjamin Franklin Benjamin Franklin Ограниченный просмотр - 1974 |
The Ingenious Dr. Franklin: Selected Scientific Letters of Benjamin Franklin Benjamin Franklin Недоступно для просмотра - 1974 |
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aerostatic America animals appear ball balloon Barbeu Dubourg Benjamin Franklin body bottom canal carried charge chimney clouds cold common conductor continue cool DEAR SIR degree descend discharge distance earth effect electric fluid evaporation experiment eyes feet diameter fill'd fire flame force Franklin fresh give glass globe Gravesend heat height high water inch inflammable air ingenious Jan Ingenhousz JANE MECOM John Bartram Joseph Priestley July 12 kind letter light lighter London Madeira wine magic squares metal miles motion natural observed occasion paper Paris particles passing Passy perhaps Peter Collinson Philadelphia present quantity rarified received rise river round side Sir Joseph Banks sometimes sound spout stream striking suppos'd suppose surface swimming thro throw tion toises tricity vacuum vapour voyages warm waves whirl whirlwind wind window wood ΤΟ