A new thermometer measures temperature with sound
The device picks up sound waves made by hot objects
![thermometer detecting sound waves](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/09/092420_mt_sound-thermometer_feat.jpg?fit=1028%2C579&ssl=1)
A new thermometer takes the temperature of objects by sensing sounds that the objects give off when they get hot. In this simulation, a sheet of silicon nitride (center) detects sound waves from hot blobs of epoxy (ovals at top, bottom, left and right).
R. Singh and T. Purdy/Physical Review Letters 2020