The gravitational force between two nanoscale particles is minuscule due to their small masses. For example, consider two nanoparticles each with a mass of 1 nanogram (10-9 grams) separated by a distance of 1 nanometer (10-9 meters). The gravitational force between them can be calculated using Newton's law: F = G * (m1 * m2) / r2 Given that G = 6.674 × 10-11 N(m/kg)2, the resulting force is exceedingly small, illustrating why gravitational effects are often disregarded in nanotechnology.
