Tiny organisms live in a world where the usual rules of motion feel upside-down. Water that slips through our fingers turns syrupy at their scale, dragging against every twitch. Yet a sperm cell or a green alga skims along as if the goo were…
Tiny organisms live in a world where the usual rules of motion feel upside-down. Water that slips through our fingers turns syrupy at their scale, dragging against every twitch. Yet a sperm cell or a green alga skims along as if the goo were…