A National Park Service Ranger plays a glass harmonica at the Benjamin Franklin Museum, which is offering free admission through Sunday to celebrate Franklin's 308th birthday today. Franklin invented the "glass armonica," based on the concept of running a wet finger around the rim of a glass. His wife Deborah likened the sound to "the musick of angels." Franklin's print shop, post office and a "ghost structure" of his home are just a few steps from the museum. Photo by Guest Instagrammer @JimMacMillan #VisitPhilly
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  • visitphillyA National Park Service Ranger plays a glass harmonica at the Benjamin Franklin Museum, which is offering free admission through Sunday to celebrate Franklin's 308th birthday today. Franklin invented the "glass armonica," based on the concept of running a wet finger around the rim of a glass. His wife Deborah likened the sound to "the musick of angels." Franklin's print shop, post office and a "ghost structure" of his home are just a few steps from the museum. Photo by Guest Instagrammer @JimMacMillan #VisitPhilly

  • imbenjaminfranklinThe musik of angels, indeed.
  • epcadenAwesome!! I got to play one when I visited his house in London!
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