A Japanese research team led by The University of Tokyo studied the vibration of four gases using electron microscopy and spectroscopy by collaborating with Hitachi High-Technologies Corp. Combined with simulations, they measured the increased vibration at 1,000°C compared with room temperature. O2 and CH4 showed significant excitation, although the vibration of hot O2 was overestimated by the simulations. N2 and CO showed no increase in vibration, because of rigid bonds. The method can be used to design efficient gaseous reactions.