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"We're living in a world that's blowin' itself to hell as fast as everybody can arrange it. Welsh, The Thin Red LineR.C.
Dimorphos moves mostly in a circular retrograde orbit around Didymos, with an orbital period of 11.9 hours around Didymos. It measures approximately 160 metres (520 ft) in diameter compared to 780 metres (2,560 ft) to that of Didymos
The DART spacecraft will achieve the kinetic impact deflection by deliberately crashing itself into the moonlet at a speed of approximately 6.6 km/s . The collision will change the speed of the moonlet in its orbit around the main body by a fraction of one percent, but this will change the orbital period of the moonlet by several minutes - enough to be observed and measured using telescopes on EarthThe NASA page - [Link] - shows:
The DART spacecraft launch window begins in late July 2021. DART will launch aboard a SpaceX Falcon 9 rocket from Vandenberg Air Force Base, California. After separation from the launch vehicle and over a year of cruise it will intercept Didymos’ moonlet in late September 2022, when the Didymos system is within 11 million kilometers of EarthIf the impact will be at a velocity of over 1/2 million km/day, a year seems a long time for it to take to travel the 11 million km
The Lockheed SR-71 "Blackbird" was developed as a black project from the Lockheed A-12 reconnaissance aircraft during the 1960s by Lockheed's Skunk Works division. It's first flight was Dec 1964 and it entered service in Jan 1966Wonder what they have now, 55 years later, or was Blackbird dependant of the unique advanced technology that existing in the 1960s?
During the 1964 campaign, Republican presidential nominee Barry Goldwater repeatedly criticized President Lyndon B. Johnson and his administration for falling behind the Soviet Union in developing new weapons. Johnson decided to counter this criticism by revealing the existence of the YF-12A USAF interceptor, which also served as cover for the still-secret A-12 and the USAF reconnaissance model since July 1964. USAF Chief of Staff General Curtis LeMay preferred the SR (Strategic Reconnaissance) designation and wanted the RS-71 to be named SR-71. Before the July speech, LeMay lobbied to modify Johnson's speech to read "SR-71" instead of "RS-71". The media transcript given to the press at the time still had the earlier RS-71 designation in places, creating the story that the president had misread the aircraft's designation. To conceal the A-12's existence, Johnson referred only to the A-11, while revealing the existence of a high speed, high altitude reconnaissance aircraftInteresting side note of the use of Titanium
Titanium was in short supply in the United States, so the Skunk Works team was forced to look elsewhere for the metal. Much of the needed material came from the Soviet Union. Colonel Rich Graham, SR-71 pilot, described the acquisition process: The airplane is 92% titanium inside and out. Back when they were building the airplane the United States didn't have the ore supplies – an ore called rutile ore. It's a very sandy soil and it's only found in very few parts of the world. The major supplier of the ore was the USSR. Working through Third World countries and bogus operations, they were able to get the rutile ore shipped to the United States to build the SR-71
One early Cold War project would have seen large rods of tungsten, a high-density, high-strength metal often used in armor piercing munitions, literally falling down from the sky onto targets on Earth. Pointed rods, around twenty or thirty feet long and several feet in diameter, would have been sent into space via rocket and housed on satellites, where they would then be dropped onto hardened targets like underground bunkers. The idea was conceived by one Jerry Pournelle, a “science-fiction writer and space-weapons expert” sometime in the 1950s while employed at Boeing... but what about Hubble - the launch mass was 11,110 kg and dimensions are 13.2 m × 4.2 m (43 ft × 14 ft)
Getting bundles of telephone pole-sized tungsten rods—1.7 time denser than lead—would require rockets of a massive scale that would have been prohibitively expensive
Whattya' think guys & gals?? Doesn't seem to prove the point to me...