F.I.B. (Focused Ion Beam)
5 microns (5 ?m)
The Nano Chair is a Sitting Chair on a nano-scale.
It's impossible to see with the naked eye; even a normal microscope won't do. This chair is only visible with a SEM microscope which obtains information by shooting Ions at an object that then reflect the image.
MiPlaza (Philips Research)