50 100, 150. Round figures and great expectations: when a new decade begins there are always many expectations, and the starting themes will often turn out to be passengers when the final balance is made.
The 20s of the XNUMXst century begin with crisis in Iran, fires in Australia e artificial intelligence, but what hot topics kept the bank last century? And two centuries ago? Let's give the numbers: 50 100 150. Here are the trending topics of 50, 100 and 150 years ago.
50 years ago, 1970: #guerrachimica
“President Nixon's announcement last month regarding chemical and biological weapons confirmed that as of this month, America renounces biological warfare and the offensive use of lethal and debilitating chemical weapons.”.
The statement did not, however, change U.S. policy on two important weapons currently in use in Vietnam. Tear gas and chemical defoliants. As far as biological warfare is concerned, the renunciation is unilateral and unambiguous. The president has indicated that biological warfare research will be limited to defensive measures; America's stockpile of biological weapons would be destroyed." Already. WOULD. I guess this escort wasn't going to be destroyed. And the rest of the promises, too, I believe, would have been rejected.
100 years ago, 1920: #virus stamps
the topic of “stamps as possible sources of infection” appeared in the Medical Times of October 1919 and has been discussed ever since. Laboratory tests have shown that no stamp is germ-free. Among the germs found in the experiments were staphylococci, streptococci, pneumococci and diphtheria bacilli. The amount of danger presented by these organisms cannot be stated, since, unfortunately, no tests have been carried out to determine their virulence. In commenting on these findings, American medicine, while not encouraging the common practice of moistening stamps with the tongue, emphasizes that if stamps were a serious source of infection a very large percentage of the population would undoubtedly suffer from infections due to this cause." . Well throw water on the fire 100 years ago. A century later there are other problems of this type.
150 years ago, 1870: #innovations
Reading technology – “The improvement that we illustrate in this document represents a luxury that few, sick or healthy, after having enjoyed once, will be willing to give up. These devices allow you to read while a person is sitting or lying down. In this way, the printed material is placed directly in front of the eyes and in a position that does not require muscular effort to support the book or keep the body in a tiring position. This invention was patented through the Scientific American Patent Agency by Edward Conley of Cincinnati, Ohio. If it weren't for the vintage print it would look like a description of a Kindle.
Oil furnace – Henri St.-Claire Deville was commissioned by the French Academy to conduct a series of experiments on this important topic. He has managed to invent a furnace that satisfactorily makes the object. This can easily be considered one of the most important inventions of the year. It's a shame that we then got used to it in the following centuries.
