Airbus thinks goose tip could trim fuel consumption
If planes flew in formation like wild geese they might use five to 10 percent less fuel, European aircraft maker Airbus said Wednesday as it signed up to test the idea.
Sep 9, 2020
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If planes flew in formation like wild geese they might use five to 10 percent less fuel, European aircraft maker Airbus said Wednesday as it signed up to test the idea.
Sep 9, 2020
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132
Persistent supply chain woes and staffing issues led to another quarterly loss at Boeing, but the company on Wednesday confirmed its 2023 outlook amid strong aviation demand.
Jan 25, 2023
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British startup Faradair Aerospace has unveiled plans to build and sell an 18-seat bioelectric hybrid airplane for use as both a passenger and cargo air transport. The company is calling its plane the Bio Electric Hybrid ...
Airline passengers who have endured tens of thousands of weather-related flight delays this week got a welcome respite from the headaches Saturday, despite concerns about possible disruptions caused by new wireless 5G systems ...
Jul 1, 2023
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Delta Air Lines said Thursday that it has completed upgrading its fleet to protect key equipment against interference from 5G wireless signals, plugging a hole that could have disrupted flights during low visibility.
Sep 1, 2023
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The second deadly crash of a prized new airplane in five months has renewed safety concerns about the 737 Max that could shape Boeing's fortunes for many years.
Mar 12, 2019
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A team at the University of Dayton Research Institute has created a video showing what can happen to an airplane when it collides with a drone. They have presented their findings along with the video at this year's Unmanned ...
Will this plane land safely?
Dec 3, 2020
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As he made history by becoming the first person to fly across New Zealand's Cook Strait in an electric plane, Gary Freedman thought it only fitting that the first thing he saw when approaching the Wellington coastline was ...
Nov 1, 2021
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Earlier this month a tantalizing thought from Boeing was presented, as "an aircraft that can fly more than five times the speed of sound, jetting across world in one to three hours. If Boeing has any say, it'll be a reality ...
A planet (from Greek πλανήτης, from the verb πλανώμαι planōmai I wander), is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.[a]
The term planet is ancient, with ties to history, science, myth, and religion. The planets were originally seen by many early cultures as divine, or as emissaries of the gods. Even today, many people believe in astrology, which holds that the movement of the planets affects people's lives, although such a causation is rejected by the scientific community. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. Even now there is no uncontested definition of what a planet is. In 2006, the IAU officially adopted a resolution defining planets within the Solar System. This definition has been both praised and criticized, and remains disputed by some scientists.
The planets were thought by Ptolemy to orbit the Earth in deferent and epicycle motions. Though the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei. By careful analysis of the observation data, Johannes Kepler found the planets' orbits to be not circular, but elliptical. As observational tools improved, astronomers saw that, like Earth, the planets rotated around tilted axes, and some share such features as ice-caps and seasons. Since the dawn of the Space Age, close observation by probes has found that Earth and the other planets share characteristics such as volcanism, hurricanes, tectonics, and even hydrology. Since 1992, through the discovery of hundreds of extrasolar planets (planets around other stars), scientists are beginning to understand that planets throughout the Milky Way Galaxy share characteristics in common with our own.
Planets are generally divided into two main types: large, low-density gas giants, and smaller, rocky terrestrials. Under IAU definitions, there are eight planets in the Solar System. In order from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn, Uranus, and Neptune. The Solar System also contains at least five dwarf planets: Ceres, Pluto (originally classified as the Solar System's ninth planet), Makemake, Haumea and Eris. With the exception of Mercury, Venus, Ceres and Makemake, all of these are orbited by one or more natural satellites.
As of June 2009, there are 353 known extrasolar planets, ranging from the size of gas giants to that of terrestrial planets.
This text uses material from Wikipedia, licensed under CC BY-SA