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Neptunium has also been used in detectors of high-energy neutrons. The longest-lived isotope of neptunium, neptunium-237, is a by-product of nuclear reactors and plutonium production. This isotope, and the isotope neptunium-239, are also found in trace amounts in uranium ores due to neutron capture reactions and beta decay. [7]
Edwin Mattison McMillan (September 18, 1907 – September 7, 1991) was an American physicist credited with being the first to produce a transuranium element, neptunium.For this, he shared the 1951 Nobel Prize in Chemistry with Glenn Seaborg.
Earth Day, which takes place on April 22, dates back to 1970, when U.S.-based organizers were hoping to bring awareness to the environmental degradation they were witnessing across the country.
He advised ten US presidents—from Harry S. Truman to Bill Clinton—on nuclear policy and was Chairman of the United States Atomic Energy Commission from 1961 to 1971, where he pushed for commercial nuclear energy and the peaceful applications of nuclear science. Throughout his career, Seaborg worked for arms control.
A 2015 study estimated that there are roughly 3 trillion trees on earth, give or take a few million. Since there are around 8 billion people currently living on the planet, the math boils down to ...
Earth Day is an annual event on April 22 to demonstrate support for environmental protection.First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries.
President Joe Biden marked Earth Day by announcing $7 billion in federal grants for residential solar projects serving 900,000-plus households in low- and middle-income communities — while ...
[7] NEPA required any federal agency planning a project that would affect the environment to submit a report on the likely consequences of its plan. [7] President Nixon signed the bill on New Year's Day 1970, declaring "that the 1970s absolutely must be the years when America pays its debt to the past by reclaiming the purity of its air, its ...