成人快手

We look at the science behind cutting Covid isolation to 5 days, and vets declare the largest ever outbreak of bird flu across Europe - but why now, and how should we respond? We鈥檙e looking into the microscopic world of nanotechnology: the science of the very, very small, including the incredible story of the sword of Damascus; it turns out that the blacksmiths of centuries ago knew a thing or two about carbon nanotubes and how to make metal incredibly tough!

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