Two large blocks of different materials, such as aluminum and glass, have been sitting in a room \(\left(20^{\circ} \mathrm{C}\right)\) for a very long time. Which of the two blocks, if either, will feel warmer to the touch? Assume the blocks to be semiinfinite solids and your hand to be at a temperature of \(37^{\circ} \mathrm{C}\).