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Channel: UFO Buster
Manny’s Boca Chica SpaceX YouTube Video
China's helicopter prototype looks like a UFO
(CNN)China has been unveiling a lot of new weaponry lately, but one of their latest reveals looks really, well, out of this world.
Called the "Super Great White Shark" by Chinese media, the aircraft conjures up images of 1950s sci-fi movies more than 21st century technology. But China says the "armed helicopter" was designed for the "future digital information battlefield."
State-tabloid the Global Times published an image gallery of the aircraft, calling it a fusion of modern, proven helicopter designs -- such as the American AH-64 Apache and CH-53 Sea Stallion as well as the Russian Ka-52 and Mi-26 copters. It also has the blended-wing design employed by stealth aircraft, including the US B-2 bomber.
The Super Great White Shark is 7.6 meters (25 feet) long, almost three meters (10 feet) high and has room on board for two crew. Schematic drawings show its outer shell covers rotors and engines, which would presumably give the helicopter stealth capability because any sharp angles would be covered, making it harder for radar to detect.
How Can a Star Be Older Than the Universe?
Space Mysteries: If the universe is 13.8 billion years old, how can a star be more than 14 billion years old?
Bond and his colleagues set themselves to the task of figuring out whether or not that initial figure of 16 billion was accurate. They pored over 11 sets of observations that had been recorded between 2003 and 2011 by the Fine Guidance Sensors of the Hubble Space Telescope, which make a note of the positions, distances and energy output of stars. In acquiring parallax, spectroscopy and photometry measurements, a better sense of age could be determined.
"One of the uncertainties with the age of HD 140283 was the precise distance of the star," Bond told All About Space. "It was important to get this right because we can better determine its luminosity, and from that its age — the brighter the intrinsic luminosity, the younger the star. We were looking for the parallax effect, which meant we were viewing the star six months apart to look for the shift in its position due to the orbital motion of the Earth, which tells us the distance."
Test the parallax effect
Another way to see how this effect works is to hold your hand out in front of you and look at it with your left eye closed, then your right eye closed. Your hand will appear to move against the background.
"Another factor that was important was, of all things, the amount of oxygen in the star," Bond said. HD 140283 had a higher than predicted oxygen-to-iron ratio and, since oxygen was not abundant in the universe for a few million years, it pointed again to a lower age for the star.
"Like all measured estimates, it is subject to both random and systematic error," said physicist Robert Matthews of Aston University in Birmingham, UK, who was not involved in the study. "The overlap in the error bars gives some indication of the probability of a clash with cosmological age determinations," Matthews said. "In other words, the best supported age of the star is in conflict with that for the derived age of the universe [as determined by the cosmic microwave background], and the conflict can only be resolved by pushing the error bars to their extreme limits."
The error is about 700 or 800 million years. 190.1 light years.
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Video length: 37:08
Filed under: Ufo Sighting