Can this be scaled down to a Roomba? Then it would both be more useful at picking stuff up off the floor, and able to recover from falling down the stairs.

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al_borland an hour ago | parent [-]

All the dust around it on the floor would end up airborne again.

	▲	zbrozek an hour ago \| parent [-]
		That's OK if it's just to save itself from dying in the event of a fall down the stairs. Should be infrequent!