Together, the amygdala and the hypothalamus urge a man to pay attention: "wow look at those curves".
In other words, what you may have long suspected is true: men's brains are designed to objectify females.
A nonovulating female baboon was fitted with a "fake baboon butt". The artificially enhanced female was kept in a separate cage where she was visible to males, but could not be touched by them. The experiment counted the number of times the male baboons masturbated. The bigger the brighter the butt, the more the male baboons pleasured themselves.
AFM probes can be made thin, which defines relatively small spring constants in the 0.01 - 0.6 N/m range. These AFM probes are regularly used for imaging in contact mode and applied to SOFT samples.
Spring constants of commercial AFM probes vary in the 0.1 N/m to 600 N/m range. Typical dimensions of Si AFM tips are: height 8 - 20 µm, opening angle of ca. 30 - 40 degrees, apex radius 10 nm. They have a pyramidal shape, which in the ideal case should be triangular near the apex.