A team of scientists has uncovered the way heavy, Motorized Objects climb steep slopes. The newly found method mimics how rock climbers navigate inclines. The findings were published in the journal Soft Matter.
The stem is from a series of experiments in which Motorized Objects were placed in liquid and then moved up tilted surfaces. Jun Zhang, one of the paper’s authors and a professor of physics and mathematics at New York University’s Courant Institute of Mathematical Sciences and NYU Shanghai said that the ‘microswimmers are about 20 times heavier than the fluid they swim in. They were able to climb steep slopes that are almost vertical.
They are also made of gold and platinum, a makeup that gives them unbalanced densities given the varying weights of these metals. The composition of the swimmer’s liquid environment and juxtaposition of surfaces enabled them to move upward, despite their significant weight.A hydrodynamic effect amplifies this movement; swimming next to a wall yields a bigger torque in repositioning the motors bodies upwards. This is important because the microscopic world is noisy for the motor.