Nanobubbles for algae cleanup: Q&A with researcher Wen Zhang

One of the most powerful environmental cleaning technologies in recent years is too small to see with the naked eye. Nanobubbles—tiny gaseous bubbles with diameters of around 100 nanometers—can clean up a range of harmful ...

Europe sweats through new heat wave, with worse to come

France banned alcohol in red-alert areas Sunday, Spain and Germany canceled or postponed sports events, and Britain warned of "tropical nights" as Europe sweltered through a heat wave threatening to break June temperature ...

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