air expands greatly when heated, / but since air is practically invisible, /
we are not ordinarily conscious of any change in it. ❷the expansion of air /
can be readily shown / by putting a drop of ink in a thin glass tube, / inserting
the tube in the cork of a flask, / and applying heat to the flask. ❸ the ink is
forced up the tube / by the expanding air. ❹the fall(→ rise) of the drop of
ink shows / that the air in the flask occupies more space than formerly, /
and since the quantity of air has not changed, / each cubic inch of space
must hold less warm air than it held cold air; ❺ that is, one cubic inch of
warm air weighs less than one cubic inch of cold air.
공기 팽창에 관한 실험인데요.
굵은 글씨 부분의 내용이 이해되지 않아요. 쉽게 설명 해주시면 고맙겠습니다.
2022-02-06 11:06:36
that the air in the flask occupies more space than formerly,/
that 플라스크에 있는 공기가 이전보다 더 많은 공간을 차지한다.
and since the quantity of air has not changed, /
그리고 공기의 질이 변하지 않았으므로
each cubic inch of space must hold less warm air than it held cold air;
공간의 각 평방인