Heat waves discovered in materials, revolutionizing nano-scale heat conduction.
The study looked at how heat moves in really small spaces and short times. They found that the usual way we think about heat transfer doesn't work in these situations. By using a new model, they discovered that heat actually moves at a specific speed, not instantly like we thought before. They tested copper and gold and found that gold transfers heat faster than copper, which matches what they saw in real experiments.
