This week on “Uncanny Valley,” we dive into an unexpected Muse feature, shadowy spending from the largest pro-AI super PAC, and men’s tendency to lie about how much they know about AI.

Researchers from Penn State Behrend used modal analysis on a 20th-century replica of the Liberty Bell to try and determine what the original Liberty Bell sounded like. The team used a variety of techniques, including impact excitation and laser vibrometry, to measure the vibrations of the replica bell. They then used the data to create a computer model of the bell's sound. The results suggest that the original Liberty Bell sounded more like a deep, rich tone, rather than the sharp, tinny sound often associated with modern reproductions. The research could help to improve the accuracy of Liberty Bell replicas and provide a more authentic experience for visitors.