Implantable batteries can run on the body's own oxygen

From pacemakers to neurostimulators, implantable medical devices rely on batteries to keep the heart on beat and to dampen pain. But batteries eventually run low and require invasive surgeries to replace.

Root microbes may be the secret to a better tasting cup of tea

You'd think the complex flavor in a quality cup of tea would depend mainly on the tea varieties used to make it. But a study appearing in the journal Current Biology shows that the making of a delicious cup of tea depends ...

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