Fig. 5.

(A) Successive positions of a drop of liquid nitrogen with radius $R$ = 1.8 mm deposited close to the edge of a liquid-nitrogen bath. The images are separated by 250 ms. The arrow indicates the direction of movement of the drop. The corresponding movie is Movie S7. (B) Velocity $V\left(t\right)$ of the liquid-nitrogen drop. $V$ stays constant, with $V=V_A^{*}=2.2\pm 0.2$ cm/s. In B, Inset, $V$ is plotted as a function of the drop radius $R$. The dotted line is a fit with $V_A^{*}=1.7\hspace{0.17em}\frac{\rho g}{{\eta }_v}\mathrm{\Delta }h\hspace{0.17em}{h}_{N_2}$, with $h_{N_2}$ as defined in Eq. 7.