This problem involves quantum mechanics. Let Xiao Ming's injury time be e, and Xiao Ming's shadow formation time be p, E=? ω，p=h/λ，？ =h/2π, δ x δ p ≥ /2=h/4π wave equation is obtained to solve the shadow area of Xiaoming's mind per second, h=6.626 176pin, the set area is F.2, and Xiaoming's shadow area is F.2=6.626 176 square.