A device exploiting this phenomenon is run in either constant-current or constant-height mode. Airy functions are used to connect (-5[1])oscillatory solutions to evanescent solutions corresponding (-5[1])to this process at classical turning points in the WKB approximation. Binnig and Rohrer developed a technique which applies a bias voltage to induce this phenomenon as a (*) sharp tip moves over a surface. Cooper pairs undergo this phenomenon in the Josephson effect. In George Gamow’s theory (10[1])of alpha decay, a helium (10[1])nucleus undergoes this phenomenon, which allows the particle to escape the Coulomb potential. For 10 points, name this phenomenon in which a particle passes through a “classically (10[1])forbidden” potential barrier. ■END■ (10[1]0[1])