50, 100 and 150 years ago: January 2022-Scientific American

2021-12-15 01:26:09 By : Ms. Sophie An

Enhanced injection of smallpox and molten moonlight

"The thermocouples placed in the two holes drilled by the Apollo 15 astronauts on the surface of the moon indicate that the heat flows outward at about three times the expected speed. It is speculated that the source of heat is the decay of radioactive elements, and This confirms the high levels of radioactivity previously measured in lunar soil samples. The puzzling aspect of the measurement results is that if the entire moon is as radioactive as the surface soil, in the words of a researcher, the entire body "will be just a melt Of puddles. ""

“A motorist groping in dense fog is likely to wonder whether radar will help. Although radar for private cars is unlikely to be available in the near future, many technical issues have been developed for airport vehicles in the Mullard Research Laboratory. The ingenious system is solved. The image presented by the system is a direct representation of the scene in front of the driver and is projected on the television picture tube in the cab of the vehicle."

"The current garbage reduction system is based on the idea that certain content is valuable. Destroy this value and the entire system will collapse. This is what has happened. The main material that can be recycled from garbage is grease. Warfare Previously, this grease had a place among soap and candle manufacturers. But since the signing of the armistice agreement, the country has been flooded with millions of pounds of oil from [Asia] and butter from South America, their production costs It is so low that competition is impossible. All private waste reduction plants that have not yet been closed will soon be closed, and municipal factories must follow suit."

"A recent discovery is that asbestos-containing rocks are of considerable value. The deposit is located in the serpentinite of the Canadian Pacific Railway north of Arrowhead. The Montreal Journal recently announced that it will build a large-scale asbestos product in Quebec. Manufacturing plant. So far, about 80% of the asbestos produced in Canada is exported to the United States."

"Of all the terrible diseases that afflict humans, [smallpox] is the most frightening. The disfigurement scars it leaves on many people who have escaped death are the lifelong sequel to the sickening and painful diseases. Statistics show that due to Approximately half of the people who get the vaccine disease after being vaccinated are susceptible to a type of smallpox called smallpox, which is more or less close to the type of malignant disease. To ensure safety, it must be repeated. In medical science, there is no better than continuous Vaccination can actually wipe out the more certain facts of smallpox. If we have a law that compulsory vaccination and re-vaccination, we will soon stop hearing such terrible scourges. In fact, if such a law is enacted It is very doubtful whether it can be implemented."

"Dr. AC Castle (Dental Cosmos) observed that he had been numb to the temporal nerve for thirty years, extracted his teeth painlessly from the alveolar, and had never used chloroform, ether or nitrous oxide gas. Two modes can be used. One. Apply ice to the temples, which is a bit painful, and the cold feeling hits deeply. The other is done by an assistant, and each of his middle fingers is firmly pressed into the cavity behind the temporal bone spine, forming [ The side wall of the eye socket]. It only needs to be pressed for one minute. This practice does not leave an unpleasant feeling to the patient. This is an instinctive method that people often use by themselves, pressing the temples with their fingers to temporarily relieve their headaches. "

This article was originally published in Scientific American 326, 1, 79 (January 2022), with the title "50, 100, and 150 years ago"

Mark Fischetti is the senior editor of Scientific American. He covers all aspects of sustainability. Follow Mark Fischetti on Twitter Credit: Nick Higgins

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