When Kruesi finished making the phonograph Edison put on the tin foil and then recorded the nursery rhyme Mary Had a Little Lamb; Edison's daughter Marion was at the time nearly five years old and his eldest son was almost two. Edison then adjusted the reproducer and the machine reproduced it perfectly.
Spring in Yosemite National Park. Spring is by far the best time to visit Yosemite Valley. In May the waterfalls are at their peak, the wildflowers are blooming, and the summer crowds have not yet arrived. Daytime temperatures are often divine, but be prepared for chilly temperatures at night.
To see waterfalls at their best, visit in late May to early June. Snowpack in the higher elevations will be melting, meaning waterfalls in Yosemite Valley and Hetch Hetchy will be close to peak. When exactly the true peak occurs varies from year to year based on weather.