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40 is an abundant number.. Swiss mathematician Leonhard Euler noted 40 prime numbers generated by the quadratic polynomial + +, with values =,,,...,.These forty prime numbers are the same prime numbers that are generated using the polynomial + with values of from 1 through 40, and are also known in this context as Euler's "lucky" numbers.
NGC 40 (also known as the Bow-Tie Nebula and Caldwell 2) is a planetary nebula discovered by William Herschel on November 25, 1788, and is composed of hot gas around a dying star. The star has ejected its outer layer which has left behind a small, hot star. [ 4 ]
Zirconium is a chemical element; it has symbol Zr and atomic number 40. First identified in 1789, isolated in impure form in 1824, and manufactured at scale by 1925, pure zirconium is a lustrous transition metal with a greyish-white color that closely resembles hafnium and, to a lesser extent, titanium.
The Curtiss P-40 Warhawk is an American single-engined, single-seat, all-metal fighter-bomber that first flew in 1938. The P-40 design was a modification of the previous Curtiss P-36 Hawk which reduced development time and enabled a rapid entry into production and operational service.
40 Close-Up Wildlife Images That Reveal Nature’s Beauty, Taken By This Finnish Photographer. Hidrėlėy. December 23, 2024 at 9:40 PM. If you want to take a closer look at nature's wonders, you ...
40 or forty commonly refers to: 40 (number) one of the years 40 BC, AD 40, 1940, 2040; 40 or forty may also refer to: Music. 40 (record producer) (born 1983 ...
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Data from Diamond Aircraft website General characteristics Crew: one Capacity: three passengers Length: 8.1 m (26 ft 7 in) Wingspan: 11.9 m (39 ft 1 in) Height: 1.98 m (6 ft 6 in) Wing area: 13.5 m 2 (145 sq ft) Airfoil: Wortmann FX 63-137 Empty weight: 795 kg (1,753 lb) Gross weight: 1,198 kg (2,641 lb) Powerplant: 1 × Lycoming IO-360-M1A 4-cylinder air-cooled horizontally-opposed piston ...