Scientists have created a pill-size device that can detect bleeding deep inside a pig’s digestive tract and relay that information via a wireless signal to a cellphone. If modified to detect other chemicals this could be incredibly useful for human medical use.

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Scientists have created a pill-size device that can detect bleeding deep inside a pig’s digestive tract and relay that information via a wireless signal to a cellphone. If modified to detect other chemicals this could be incredibly useful for human medical use.