Science Daily  January 11, 2023 In recent ten years, optical pulling of micro-nano objects have been fully demonstrated. However, optical pulling of a macroscopic object is challenging. Researchers in China have demonstrated laser pulling of a macroscopic object in rarefied gas. The pulling force was originated from the Kundsen force when a gauss laser beam irradiates a macroscopic structure composed of the absorptive bulk cross-linked graphene material and a SiO2 layer. A torsional pendulum device qualitatively presented the laser pulling phenomenon. A gravity pendulum device was used to further measure the pulling force that is more than three orders of […]