A solid cylinder of radius $r_1 = 2.5\text{ cm}$, length $l_1 = 5.0\text{ cm}$ and temperature $40^\circ\text{C}$ is suspended in an environment of temperature $60^\circ\text{C}$. The thermal radiation transfer rate for the cylinder is $1.0\text{ W}$. If the cylinder is stretched until its radius becomes $r_2 = 0.50\text{ cm}$, the thermal radiation transfer rate becomes