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2021
Aerospace & Defense

How to Keep Drones Flying When a Motor Fails, without GPS

Safety is critical for autonomous drones. However, today's commercial quadrotor drones are still not resilient to severe motor failures. Especially in GPS-denied environments, a quadrotor with loss of one motor will fast yaw spin, causing significant position drift, which will crash the drone and may harm people on the ground. For this reason,

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Sihao Sun
Zurich, Switzerland
Votes: 0
Views: 4124
Aerospace & Defense
May 2, 2021

Anteneh's Carbon Capturing Space Rocket

Problem

According to resources, when a SpaceX Falcon heavy rocket blasts off on a plume of white smoke, hot gases shoot out of its 27 engines, creating a thrust of 1.7 million pounds at full power which is equal to 18 Boeing 747 aircraft. Upon reaching orbit,

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Anteneh Gashaw
Addis Ababa, Ethiopia
Votes: 1
Views: 2163
Aerospace & Defense
May 2, 2021

Next Generation Gas Turbine

This is a concept for a new type of gas turbine engine that was designed for turbo electric power generation for hybrid aircraft, ie commercial airliners. The main idea was to reduce the cost, complexity and maintenance requirements of traditional gas turbine engine while drastically improving fuel efficiency and emissions reduction.

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Vatche Najarian
Littleton, United States
Votes: 1
Views: 1870
Aerospace & Defense
Apr 24, 2021

Electric Aircraft Propulsion System

Reliability and endurance are of paramount importance for propeller driven aircraft. Electric motors are more reliable than internal combustion engines, yet also have new failure modes. The EnergySense aircraft propulsion system was created to address these new failure modes and increase endurance, or range, simultaneously.

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Carl Lawrence
Boulder, United States
Votes: 0
Views: 2195
Aerospace & Defense
Apr 21, 2021

Multistage Combustor

In order for a jet engine to become multistage it must have a multistage afterburner or a multistage combustor. In order for a combustor to become multistage it must actually operate through the combination of uninterrupted and pulsating combustion. Uninterrupted combustion in stage 1 and pulsating combustion in higher stages through pulsating fuel feed.

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Role Alvarez
Bacolod City, Philippines
Votes: 1
Views: 1964
Aerospace & Defense
Apr 12, 2021

Application of the Biefeld Brown Effect using Musha Takaaki Formula

In 1923 Professor Paul Biefeld and his student Thomas Townsend Brown discovered this effect during the test of a new type of capacitor. Basically the Biefeld Brown effect is electro gravitation.

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Luis Alberto Migliorero
Colón, Argentina
Votes: 4
Views: 5271
Aerospace & Defense
Apr 7, 2021

High-Speed Communication in Space

Communication in space is becoming increasingly critical, be it between satellites, from satellites to ground or even to/from the Moon or Mars. Current approaches use radio waves that spread quickly resulting in very small capacity: The data rate from the Mars orbiter is a few kbit/s, which is lower than the first-generation home modems decades ago. Therefore,

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Peter Andrekson
Gothenburg, Sweden
Votes: 3
Views: 1811
Aerospace & Defense
Mar 29, 2021

New Era for UAVs

Use atmospheric water generator powering by solar cells;

Then use a small nuclear reactor to convert water to steam to power an electric generator;

Re-condense water vapor into water using heat exchangers;

Use the electricity to power two fan duct motosr to push it onwards.

Because high atmosphere clouds contain water,

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Mohamed Farid
Giza, Egypt
Votes: 1
Views: 1397
Aerospace & Defense
Mar 28, 2021

Hawk21 360 VR Drone

Our drone is all about situational awareness. See everything in 8K 360 degree video.

The Hawk21 was designed with the professional high end content producer in mind, in TV productions, cinematography, documentary, commercial and PR productions, inspections and surveillance, general research and development projects such as for police military and emergency personnel at an affordable price.

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Ali Zareiee
Oslo, Norway
Votes: 2
Views: 2392
Aerospace & Defense
Mar 19, 2021

Teleportation of Physical Objects

Teleportation, or the ability to instantly move people and objects from one place to another, can easily change the direction of the development of civilization. Teleportation of physical objects without violating the fundamental laws of physics, without using exotic masses, energy, warp drive,

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Alex Isakov
New York, United States
Votes: 2
Views: 8427
Aerospace & Defense
Mar 17, 2021

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