This image above might look like a broken CD, but it’s actually something much cooler. The 127-year-old wax-and-cardboard disc contains the only known recording of Alexander Graham Bell, the inventor of the telephone. (Click here for more about the famed inventor.)
Thanks to hard-working researchers, high-resolution optical scans and one powerful computer, we now know what one of world’s most famous innovators sounded like.
Listen to the recording below.