sievert

"?There are two types of nation" a recent Nature editorial begins; "...those that use the metric system and those that have put a man on the Moon." Such a pro-American jingoistic statement must be deep British irony. Anyway, the editorial continues ... The reliance of the United States on feet and pounds, along with its refusal to embrace metres and kilograms, baffles outsiders as much as it warms the hearts of some American patriots. But it is time for the country to give up on the curie, the roentgen, the rad and the rem. This is about measuring radiation. There are several ways of…