Hydrogen

(noun.) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe.

格斯编辑

• A siren worked by explosion of small quantities of oxygen and hydrogen mixed. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The atom, to be sure, can no longer be consider ed the smallest unit of matter, as the mass of a β particle is approximately one seventeen-hundredths that of an atom of hydrogen. 李贝. 西洋科学史.
• The next process is the purification of the gas from carbonic acid and sulphuretted hydrogen. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Often he jeopardized his life, and once nearly lost it, by breathing carburetted hydrogen. 鲁伯特·萨金特·荷兰. 历史性发明.
• In January of 1884, Wroblewski confirmed the liquefaction of hydrogen, which had been imperfectly accomplished by Cailletet before. Edward W. Byrn. 十九世纪发明进展.
• According t o Avogadro the water vapor contains twice as many atoms of hydrogen as of oxygen. 李贝. 西洋科学史.
• The hydrogen formed by the chemical action of the dilute sulphuric acid on the zinc moves toward the copper electrode, as in the simple voltaic cell. 伯莎M.克拉克. 科学通论.
• Examination of the cell shows that the copper plate is covered with hydrogen bubbles. 伯莎M.克拉克. 科学通论.
• The same effect is caused by the combustion of the carburretted hydrogen gas, and in a more perfect manner. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Two atoms of the element hydrogen unite with one atom of the element oxygen to make one molecule of water. 伯莎M.克拉克. 科学通论.
• An important fact about hydrogen is that in burning it gives as much heat as five times its weight of coal. 伯莎M.克拉克. 科学通论.
• He took up the question, experimented with fire-damp, and found that it was in reality light carburetted hydrogen. 鲁伯特·萨金特·荷兰. 历史性发明.
• It is called olefiant gas, and contains equal measures of hydrogen gas and carbon vapour; its specific gravity is 0. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• If fine platinum wire is placed in an ordinary gas flame, it does not melt, but if placed in a flame of burning hydrogen, it melts very quickly. 伯莎M.克拉克. 科学通论.
• He concluded that anything which could be created indefinitely by a process of friction could not be a substance, such as sulphur or hydrogen, but must be a mode of motion. 李贝. 西洋科学史.

整理:马库斯