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.
Sept. 3 is Labor Day, and many hotels will be crowded. I assume you have accommodations in Yosemite booked, as they will be crowded even after Labor Day. Temps in Death Valley are more likely to be down to about 80F at night, not as a high during the day, and up to 110F during the day.