The title says it all.
You can verify the Nyquist-Shannon sampling theorem by blinking rapidly while watching a washing machine or any other cyclic yet rapid motion (like a wheel). What the theorem says in a dumbed down fashion is that the maximum frequency possible in a sample (what you're seeing) is capped by it's sampling frequency (i.e. how fast you're blinking), therefore, the washing machine will appear to rotate slower than it does, or rotate backwards, or even stand still.
The vacuume hover "car" (had a fellow class mate back in 4th grade do this) and is that bill nye on the group icon?