Hale Telescope mirror.. It was completed in 1948 and is still in active use. The Hale Telescope represented the technological limit in building large optical telescopes for over 30 years. It was the largest telescope in the world until the Russian BTA-6 was built in 1976, and the second largest until the construction of the Keck Observatory Keck 1 in 1993. Hale supervised the building of the telescopes at the Mount Wilson Observatory with grants from the Carnegie Institution of Washington: the telescope in 1908 and the telescope in 1917. These telescopes were very successful, leading to the rapid advance in understanding
Until the End of the World (song) sheet music published at Musicnotes.com, "Until the End of the World" is played at a tempo of 101 beats per minute in a 4/4 time signature. The basic key is E major. David Werther, a faculty associate in Philosophy at the University of Wisconsin–Madison, compared "Until the End of the World" with U2's 1987 song "Exit" in an examination of the role music can play in catharsis. He noted that both were powerful songs, but that while "Until the End of the World" allowed the possibility of purification, which he described as the cleansing of the soul "through pity and