In his rivalry with Thomas Edison, Graham Bell made many attempts to record sound using media that ran the gamut from metal, glass, and foil to paper, plaster, and cardboard. Many of Bell's discs survive, but the technologies used to record them are long forgotten. Researchers and scientists from the National Museum of American History and the Library of Congress in Washington, the Lawrence Berkeley National Laboratory in California, and the University of Indiana have collaborated on a project to catalog and decipher the primative recordings, using high-resolution digital scans to convert them to audio files. One wax-and-cardboard disc, recorded...

National Geographic has been publishing gorgeous photographs for 125 years, so starting a Tumblr feed seems a natural step for the dowdy journal. One of the first entries features Mabel Gardiner Hubbard Bell [See update below] inside a tetrahedral kite frame, while her husband, Alexander Graham Bell, leans in for a kiss. Doesn't it just make you wish you had known these two? Dated October 10 16, 1903, this photo surely must have been taken at Beinn Bhreagh. Click on the image to see the full-sized version. *UPDATE: It appears there is controversy about whether the woman in this photo is Mabel...