Chemists create and capture einsteinium, the elusive 99th element

Scientists have successfully studied einsteinium — one of the most elusive and heaviest elements on the periodic table — for the first time in decades. The achievement brings chemists closer to discovering the so-called “island of stability,” where some of the heftiest and shortest-lived elements are thought to reside.

The U.S. Department of Energy first discovered einsteinium in 1952 in the fall-out of the first hydrogen bomb test. The element does not occur naturally on Earth and can only be produced in microscopic quantities using specialized nuclear reactors. It is also hard to separate from other elements, is highly radioactive and rapidly decays, making it extremely difficult to study.

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Opinion | Public education’s two afflictions: Covid-19 and teachers unions

Wed Feb 3 , 2021
Teachers unions always justify their aggressions as “for the children,” but always are serving only their members. Abundant data — from public and private U.S. schools, many of which have remained open, and from schools worldwide — refutes the proposition that children, or teachers, are seriously endangered in schools that […]