Phil shows off several new materials that scientists and engineers have created. He mentions that they are created both for fun and for practical applications. He describes several new materials, such as a thermochromic mug and nitonol wire, and demonstrates how they work.
Chris and Mitch build an excimer laser and explain how it works to the group. Chris states that the laser works by putting bromide and argon atoms together and exciting them using a field. Energy is released when the molecules break apart and return to a ground state. They then demonstrate the laser, which blows a hole through multiple layers of material, including cement.