Hum. There's a bit of a stretch from nanometre- scale objects to 200 tonne stones, and that might have challenged the Egyptians a bit. the picture looks like one of those magnetic toys that you can get, you know the ones that hold a spinning globe in space. Clever but not earth shattering.

A rough calculation makes the Casimir force/unit area in vacuum for plates x metres apart about 1.3e-27/(x^4)N, so lets assume a 200 tonne stone is about a 4m cube... the force between a pair of stones 1 mm apart is 0.02 picoNewtons. Compare that with its weight of 200xG Newtons.. about 10^15 times less.... say one thousandth of a millionth of a millionth. Straws and camels don't come into it.

I'll stick to ramps, slaves, whips, sweat and persistence.