The biosolids general permit reissued in 2022 was appealed, and in 2024 we learned the Pollution Control Hearings Board (PCHB) ruled for the appellant. This decision voided the general permit. After ...
Mathematicians have long wondered how “shapes of constant width” behave in higher dimensions. A surprisingly simple construction has given them an answer. In 1986, after the space shuttle Challenger ...
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