The experiment begins with one vertical tube (main tube)
and one horizontal tube (lasso tube) (a). A tube is then
brought in close proximity to the main tube (b) and the tube
is pushed against (perhaps on top of) the main tube (c).
Additional tubes are then manipulated on top of the main
tube (d). Finally, the lasso tube is opened and unwanted
tubes are pushed away (e). Image (f) shows some unraveling
of the nanotubes that has occurred as a result of the AFM
J. Lefebvre, J. F. Lynch, M. Llaguno, M. Radosavljevic and
A. T. Johnson, Single-wall carbon nanotube circuits assembled
with an atomic force microscope, Appl. Phys. Lett. 75, 3014-3016(1999).