Simple physics replaces expensive centrifuges, making fast testing possible anywhere.
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Iran has a long history of enriching uranium in an effort to develop nuclear weapons. It’s not clear how far the US attack set back Iran’s production of bomb-grade uranium.
Engineering students in Malawi and Tanzania have used the materials and tools available to them to build ventilators, personal protective equipment and UV disinfection systems.
Every moment of life on our planet has had the force of gravity in the background. But the prospect of long-distance space travel means it’s time to figure out what happens to our biology in its absence.



