The Phonautograph and Precursors to Edison's Phonograph. An 1859 Koenig phonautograph. While Thomas Edison is rightly credited with the invention of the cylinder phonograph and the means of playing back sound, his ideas were clearly influenced by numerous others who preceded him.
itâs best time to climb El Capitan or Raft along the Merced River. Also, spring if best time to see the Yosemite Falls in all their glory, âwhen melting snow fills the streams with volume. Yosemite is one of the best places in the US to observe the planets, stars, and galaxies.
Due to the popularity of the hike up Half Dome, Yosemite National Park has instituted a permit system. Reservations are required seven days a week and there are no first-come first-serve permits available. The 400 daily openings fill up as quickly as the park releases them, demonstrating the popularity of the trail.