Chemicals from our phone and TV screens are accumulating in the brains of endangered dolphins and porpoises. New research shows these "liquid crystal monomers" from e-waste can cross the blood-brain barrier and may disrupt DNA repair, highlighting the growing impact of electronics on marine life.

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All of the robovacs I've tested have announced out loud when they're in remote viewing mode. But not all robot vacuums provide that courtesy notification (the DJI Romo, for one, does not).

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