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.
This is one of the best driving trips in California. Both Sequoia National Park and Redwood National Parks are much further drives from SF than Yosemite. Two days are not enough time to visit them if you add in the driving time. Redwood is a great destination if you are continuing up to the Oregon Coast.