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The EmDrive is a concept for a thruster for spacecraft, first written about in 2001. [2] [3] [4] ...
A reactionless drive is a hypothetical device producing motion without the exhaust of a propellant.A propellantless drive is not necessarily reactionless when it constitutes an open system interacting with external fields; but a reactionless drive is a particular case of a propellantless drive that is a closed system, presumably in contradiction with the law of conservation of momentum.
The Advanced Propulsion Physics Laboratory is enabled by section 2.3.7 of the NASA Technology Roadmap TA 2: In Space Propulsion Technologies: [11] Breakthrough Propulsion: Breakthrough propulsion is an area of technology development that seeks to explore and develop a deeper understanding of the nature of space-time, gravitation, inertial frames, quantum vacuum, and other fundamental physical ...
The Helical engine is a proposed spacecraft propulsion drive that, like other reactionless drives, would violate the laws of physics. [1] [2] [3]The concept was proposed by David M. Burns, formerly a NASA engineer at the Marshall Space Flight Center in Alabama, in a non-peer-reviewed report published on a NASA server in 2019 describing it as "A new concept for in-space propulsion is proposed ...
The Alcubierre metric defines the warp-drive spacetime.It is a Lorentzian manifold that, if interpreted in the context of general relativity, allows a warp bubble to appear in previously flat spacetime and move away at effectively faster-than-light speed.
An SMS scam targeting road tolls has resurfaced, claiming people owe money for unpaid bills.. An example of the scam text people may receive reads as follows: "Pay your FastTrak Lane tolls by ...
The Emdrive, the Dean Drive and similar entries should all be moved to a new section, perhaps with the title, 'Fraudulent Inventions', and linked to entries on perpetual-motion machines such as the Bessler Wheel. The physics community is adamant that these concepts are contrary to well-established laws of physics.
The National Highway Traffic Safety Administration is investigating reports of alleged engine failures in GM's 6.2-liter L87 V-8, an engine used in a wide variety of trucks and SUVs.