and iron on Earth reflects their common production in such stars. While most elements are generally stable, a small amount of natural transformation of one element to another also occurs in the decay of radioactive elements as well as other natural nuclear processes." [Chemical element. Wikipedia...
(Please note that I also try to carefully and consciously control my own unfair propensity to disbelieve anyscientificstudywith a registered-trade-mark symbol somewhere in its title.) Aaaaaanyway, in the Thermo Cyclopad® study there is another odd-sort-of-control, that being 20 "normal" pe...
Marie Curie died of Leukemia, probably due to the radioactive material she was working with, and aviation pioneers not only went up but also down, sometimes a lot faster than anticipated. Disadvantages for Society While creativity is necessary to improve society and we are forced to do so, ...
fulfilling the dreams of a prosperous, reproductive future, the nuclear family had come to be seen as a symbol of Japan’s developmental state. And insofar as the 3/11 catastrophe laid bare the problems of Japan’s industrialism and, by extension, nuclearism, it also made people take a ...
So far, more than 3000 radioactive isotopes are known with half-lives lasting from a few nanoseconds to billions of years. The definition of “short-lived” or “long-lived” strongly depends on the corresponding applications. While “short-lived cosmogenic radionuclides” can have half-lives of...
active a.活跃的;积极的 activity n.活动;活力;行动 actress n.女演员 actually ad.实际上;竟然 acute a.尖的,锐的;敏锐的 adapt vt.使适应;改编 add vt.添加,附加,掺加 addition n.加,加法;附加物 additional a.附加的,追加的 address n.地址;演说;谈吐 ...
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