50, 100 & 150: April 2023

2023-03-30 19:38:26
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1973

Catalytic Conversion

“Among the most troublesome air pollutants produced by automobiles are the chemically active nitrogen oxides. Workers at Bell Laboratories have found catalysts that react nitrogen oxides with a reducing gas (hydrogen or carbon monoxide), converting them to nitrogen and such harmless by-products as water and carbon dioxide. They can be coated on a ceramic support to make a filter-like device that could be installed in an automobile. So far such devices have been tested only in the laboratory; further tests are necessary to see if they will stand up under the severe conditions in an exhaust system of an automobile running for extended periods. The automobile industry faces increasingly strict Federal standards for reducing carbon monoxide, unburned hydrocarbons and oxides of nitrogen in exhaust emissions.”

1923

Discovered: Nebraska Man

“At the recent meeting of the National Academy of Sciences, Dr. Henry Fairfield Osborn announced the discovery of a tooth giving evidence of a pre-historic and unknown species of anthropoid intermediate between the ape and the earliest man. This discovery was made by Harold J. Cook in the middle Pliocene formations of Nebraska. This tooth matches no known tooth of ape or man, modern or extinct. Dr. Osborn classifies it as a new species and genus and names it Hesperopithecus haroldcookii, which means ‘the anthropoid from the west discovered by Harold Cook.’ The fossil was found in the upper phase of the Snake River beds, associated with remains of the rhinoceros, camel, Asiatic antelope and an early form of the horse. Hitherto, no specimen of anthropoid primates had been discovered in America.”

Within a few years the novel classification was proved to be a mistake; it was retracted in 1927.

Artificial Rain

“There have been plenty of reported achievements in [artificial weather making] that, on investigation, turn out to be illusory. Now we are asked to believe that a method of dispelling clouds and fog, and incidentally of turning clouds into rain, cheap enough to be applied universally for the benefit of aviators and others, has been devised by investigators at work at McCook Field, near Dayton, Ohio, on behalf of the Army Air Service. The process consists of spraying the clouds from an airplane with electrically charged sand, clearing away the cloud and producing an incipient rainstorm. We are unable to see any reason why this process should extend very far. The grains of sand would quickly lose their electrical charge and behave the same as any other mineral dust found in the atmosphere.”

1873

Vesuvius House, Great Lava Views

“About two thirds of the way up the side of Vesuvius stands a small building, plainly visible. During cloudy and wet weather, it is shrouded in the dense veil of smoke which settles around the summit; and in times of eruption, the fiery streams seem to encompass it and flow far below its level. In this structure, thus dangerously located, Professor Palmieri, a well known Italian savant, has established an observatory and, with marvelous intrepidity, has remained at his post watching the convulsions of the volcano at times when his house stood between torrents of liquid fire, the heat from which cracked the windows and scorched the solid stone of the walls. The knowledge obtained at so great a risk has been recently given to the world in an ably written volume, which contains data of invaluable assistance in the future investigation of volcanic phenomena. Professor Palmieri considers that, to a certain extent, eruptions may be predicted. We suggest he supplement his efforts by turning from an intermittent to a constant volcano—from Vesuvius to Stromboli.”

Science Benefits Economy

“It is noticeable that scientific subjects have received more attention from the newspaper press of late. This is partly [because] it is becoming more generally known that discoveries that seemed at first to be without any application have contributed to the general good. Experiments in magnetism and electricity, which led to the invention of the electric telegraph, were made from curiosity only. None could have anticipated the use of spectrum analysis in the manufacture of steel. Other cases may be noted to illustrate the proposition that every addition that may be made to physical science is capable of an economic use.”

参考译文
50、100和150:2023年4月
1973 催化转化 “汽车产生的最令人头疼的空气污染物之一是化学活性的氮氧化物。贝尔实验室的研究人员发现了一种催化剂,可以将氮氧化物与一种还原气体(如氢气或一氧化碳)反应,将其转化为氮气,以及水和二氧化碳等无害的副产品。这些催化剂可以涂在陶瓷支撑物上,形成一种类似过滤器的装置,可安装在汽车上。到目前为止,这种装置仅在实验室中进行了测试;还需进行更多测试,以确定它们是否能经受住汽车长时间运行中排气系统内严苛条件的考验。汽车行业正面临越来越严格的标准,以减少排气中的一氧化碳、未燃烧的碳氢化合物和氮氧化物。”1923 发现:内布拉斯加人 “在最近的美国国家科学院会议上,亨利·费尔菲尔德·奥斯本博士宣布发现了一颗牙齿,为一种史前未知的类人猿物种提供了证据,这种物种位于猿与最早的人类之间。这一发现由哈罗德·J·库克在内布拉斯加中更新世地层中发现。这颗牙齿与已知的猿或人类(现代或灭绝的)牙齿都不相符。奥斯本博士将其分类为一种新的物种和属,并命名为‘哈罗尔德库克西方猿人’(Hesperopithecus haroldcookii),意即‘由哈罗尔德·库克发现的西方类人猿’。该化石发现于蛇河河床的上层阶段,与犀牛、骆驼、亚洲羚羊以及早期马类的遗骸共同存在。此前,美洲从未发现过任何类人猿标本。”几年内,这种新颖的分类被证明是一个错误;1927年,该发现被撤回。人工降雨 “在‘人工气象’方面,有很多所谓的成果在调查后被证明是虚幻的。现在我们被要求相信,一种能够驱散云雾,顺便将云转化为雨水的方法,由位于俄亥俄州代顿附近麦科克机场的美国陆军航空部队的研究人员发明,这种技术成本低廉,可被广泛应用于航空人员和其他人的利益。该方法包括从飞机上将带电沙粒喷洒到云中,驱散云层并引发初期降雨。我们无法看出为何这种过程可以产生广泛的效果。沙粒会迅速失去电荷,并像大气中任何其他矿物粉尘一样行为。”1873 维苏威火山房屋,壮观的熔岩景观 “在维苏威火山侧面大约三分之二的高度上,有一座明显可见的小建筑。在阴雨天气,它被围绕山顶的浓密烟雾笼罩;在火山喷发时,炽热的熔岩流似乎围绕着它,远远流到它下方。在这危险位置的建筑中,意大利著名学者帕尔米耶里教授建立了一座观测站,并以非凡的勇气,坚守岗位,观察火山爆发时的剧烈动荡,有时他的房子就位于液体火焰的洪流之间,炽热的温度使窗户开裂,并烧焦了墙壁的坚硬石头。以如此巨大风险获得的知识最近以一本出色撰写的作品公之于众,该书包含的数据对于未来研究火山现象具有无可估量的价值。帕尔米耶里教授认为,在某种程度上,火山喷发是可以预测的。我们建议他通过将研究对象从间歇性火山转为持续活动的火山来补充他的努力——从维苏威火山转到斯特龙博利火山。”科学促进经济 “可以注意到,报纸媒体最近对科学话题的关注增加。部分原因是人们越来越认识到,最初看似毫无应用价值的发现也对社会整体有所贡献。电报的发明源于磁学和电学的实验,最初纯粹出于好奇。当时没有人能预见到光谱分析会在钢铁制造中得到应用。还有其他例子可以说明,每项对物理科学的补充都有可能具有经济用途。”
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