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Logo of telegram channel national_geographic_documentary — Tech Courses-Learning Online
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The latest Messages 2

2022-07-21 12:52:11
Boom reveals new supersonic design and industry partnerships

Readmore: https://www.facebook.com/reel/821223742193411?s=cl&fs=e
52 views09:52
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2022-07-01 09:19:17
LX-1 flying car revealed – ‘hyper eVTOL’ prototype - The dream of flying cars is ancient, and yet, we have yet to see this dream become a reality.

But a manned alpha prototype of an eVTOL (electric vertical take-off and landing) aircraft has been revealed, bringing us closer to that dream.

While the experimental prototype LX-1 doesn’t display the dashing looks from earlier renders, its aluminum frame was designed to test the propulsion system, consisting of four banks of at least 72 small vertical-lift fans. And it has two larger diameter fans at the rear, giving it some horizontal thrust, according to New Atlas... Readmore: https://www.aerospacengineering.net/lx-1-flying-car-revealed-hyper-evtol-prototype/
497 views06:19
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2022-06-01 03:18:45
How do planes take off and land on aircraft carriers?

In the new Top Gun we will see Tom Cruise, or rather Captain Pete “Maverick” Mitchell, take off from an American super carrier, aboard a Boeing F / A-18 Super Hornet. But how does a nearly 3000 kg plane take off in few tens of meters of an aircraft carrier? The secret is contained in a mechanism called “catapult” for take-off and with a system of cables for fitting... Read more: https://www.aerospacengineering.net/how-do-planes-take-off-and-land-on-aircraft-carriers/
233 views00:18
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2022-05-19 20:52:54
New kind of solar cells generate electricity even at night - UNSW scientists have announced a breakthrough in the field of renewable energy. They have developed a new kind of solar cells that can produce electricity even at night.’

Known as ‘Night-time’ solar power, the technology generates electricity from heat radiated as infrared light, in the same way as the Earth cools by radiating into space at night. However, it generates a very small amount of energy, but scientists hope to improve the results in the future.

A semiconductor device called a thermoradiative diode, composed of materials found in night-vision goggles was used to generate power from infrared light emission. This is an unambiguous demonstration of electrical power from a thermoradiative diode... read more: https://www.aerospacengineering.net/new-kind-of-solar-cells-generate-electricity-even-at-night/
207 views17:52
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2022-05-12 20:57:27
The First-Ever Image of The Black Hole at The Center of The Milky Way - Four and a half billion years ago, our pale blue dot was born in the rubble left over from the birth of a star. Since then, we’ve been locked in a cosmic dance; Earth whirls around the Sun; and the Sun whirls around the galactic center – the dark, mysterious heart of the Milky Way.

Contained in that dark heart, around which the entire galaxy revolves, is a supermassive black hole named Sagittarius A*, clocking in at roughly 4.3 million times the mass of the Sun. We’ve been able to infer its presence, and measure it, based on the movements of objects around it, but never had we seen the object itself.

That image at the top of the screen – looking like a glorious blurry orange donut – is the dust around and shadow of Sgr A* itself, seen by humanity for the very first time, thanks to the hard work of the Event Horizon Telescope collaboration...Read more: https://www.aerospacengineering.net/the-first-ever-image-of-the-black-hole-at-the-cent
224 views17:57
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2022-05-08 17:13:31
SpaceX, Humanity on the Mars before the end of the 2020s - In December 2021, Elon Musk predicted that humans will be on Mars within a decade. Now, SpaceX President and Chief Operating Officer Gwynne Shotwell told CNBC‘s Shepard Smith on Saturday that humanity will touch the ground on the Red Planet before the end of the 2020s. “I think it will be in this decade, yes. People on the moon, sooner,” Shotwell said... Read more: https://www.aerospacengineering.net/spacex-humanity-on-the-mars-before-the-end-of-the-2020s/
475 views14:13
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2022-05-07 15:25:39
Lockheed Martin tests new hypersonic weapon concept - A Lockheed Martin hypersonic missile prototype flew at five times the speed of sound “for an extended period” during a recent successful technology test for the U.S. military.

The hypersonic weapons test, which was announced April 5 by the Defense Advanced Research Projects Agency (DARPA), marked the second flight for the Hypersonic Air-breathing Weapon Concept (HAWC) program following a September 2021 test by Raytheon Technologies, DARPA officials said in a statement... Readmore: https://www.aerospacengineering.net/lockheed-martin-tests-new-hypersonic-weapon-concept/
546 views12:25
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2022-05-07 15:07:42
How engineers are preventing icing on new types aircraft - Weather conditions affect flight performance and safety and airframe icing is one of the most dangerous. Ice on airframes can cause severe aerodynamic and flight mechanical effects, significantly increasing the risk of flying.... readmore: https://www.aerospacengineering.net/how-engineers-are-preventing-icing-on-new-types-aircraft/
458 views12:07
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2022-05-05 20:47:02
The world's largest flying aircraft tested its hypersonic capabilities (Audible) - https://www.aerospacengineering.net/the-worlds-largest-flying-aircraft-tested-its-hypersonic-capabilities/
571 views17:47
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2022-04-07 02:40:01
Startup Made a Functioning 'Invisibility Shield'. Here's How It Works (Audible) - https://www.aerospacengineering.net/startup-made-a-functioning-invisibility-shield-heres-how-it-works/
479 views23:40
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