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The second amplifier released was the Phase Linear 400 with 200 watts per channel. It shared the same distinctive brushed aluminum, dual VU meters front panel style as the 700. It retailed for just under $500. [1] The next product was the Phase Linear 4000 Series Auto-correlation Pre-Amplifier introduced in 1973 and manufactured through 1978.
The Hartman Stock Farm Historic District was a historic district in Columbus, Ohio. The district was listed on the National Register of Historic Places from 1974 to 2022. [1] [2] The district is the site of Hartman Farm, a 5,000-acre farm founded by Samuel B. Hartman in 1903.
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SS City of Columbus: 1878 Wrecked off Martha's Vineyard January 18, 1884 SS City of Glasgow: 1850 Vanished and presumed lost in 1854 SS City of London: 1863 Vanished and presumed lost in 1881 SS City of Manchester: 1851 Wrecked in 1876 SS City of Nagpur: 1922 Torpedoed and sunk on April 29, 1941 SS City of New York: 1888 Scrapped in 1923 ...
Astronomer George Ellery Hale, whose vision created Palomar Observatory, built the world's largest telescope four times in succession. [8] He published a 1928 article proposing what was to become the 200-inch Palomar reflector; it was an invitation to the American public to learn about how large telescopes could help answer questions relating to the fundamental nature of the universe.
Palomar Mountain (/ ˈ p æ l ə m ɑːr / PAL-ə-mar; Spanish: Monte Palomar) is a mountain ridge in the Peninsular Ranges in northern San Diego County, California. It is known as the location of Palomar Observatory and Hale Telescope, and known for Palomar Mountain State Park .
The Columbus & Xenia Railroad's Big Darby Bridge, around 1854. The Little Miami Railroad leased in perpetuity all assets of the C&X on March 18, 1869, while the C&X continued to exist as a separate corporation. At that time, the LMRR had 123.49 miles (198.74 km) of track and the C&X 75.33 miles (121.23 km).
Linear programming (LP), also called linear optimization, is a method to achieve the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements and objective are represented by linear relationships. Linear programming is a special case of mathematical programming (also known as mathematical optimization).