Finding the cause of a fatal problem in rocket engine combustors
Rocket engines contain confined combustion systems, which are essentially combustion chambers. In these chambers, nonlinear interactions among turbulent fuel and oxidizer flows, sound waves, and heat produced from chemical reactions cause an unstable.....»»
Rocket Report: SLS workforce cuts; New Glenn launch to launch in the early fall
"This is a vital component in our preparations for launch." Enlarge / The flight hardware core stage for Europe’s new rocket, Ariane 6, is moved onto the launch pad for the first time this week. A launch is possible some time t.....»»
Researchers establish a high-throughput multiscale evaluation method for thermal stress in thermal barrier coatings
Thermal barrier coatings (TBCs) are widely used in gas turbine engines to obtain elevated working temperatures and improve engine efficiency. The phase transition of the ceramic layer is accompanied by a large volume difference, causing the concentra.....»»
Scholars explain the ideology that says technology is the answer to every problem
Silicon Valley venture capitalist Marc Andreessen penned a 5,000-word manifesto in 2023 that gave a full-throated call for unrestricted technological progress to boost markets, broaden energy production, improve education and strengthen liberal democ.....»»
Recently discovered black hole is part of a nearby disrupted star cluster, study finds
European astronomers have investigated a recently detected black hole designated Gaia BH3. In their results, they found that the black hole is associated with a nearby disrupted star cluster known as ED-2. The finding is reported in a paper published.....»»
Continental fined $107M over role in diesel-emissions scam
German prosecutors issued the fine over the company’s participation in the scam via selling more than 12 million engine control units that automakers, including Volkswagen Group, used to manipulate emissions......»»
How to choose the best RAM for your PC in 2024
DDR, DIMM, XMP, CAS ... Confused? No problem -- our RAM buying guide will help you demystify this once and for all so that you can make your PC run great......»»
Fake engine noises in electric cars need to die
Electric cars have the benefit of being much more quiet than their gas-powered counterparts. So why are carmakers building in fake engine noises?.....»»
Scotland"s hate crime law: The problem with using public order laws to govern online speech
Scotland's new hate crime law came into force on April 1, sparking immediate controversy over its potential effects on freedom of speech and expression, especially online. The Hate Crime and Public Order (Scotland) Act expands on current laws about c.....»»
Hidden biosphere discovered beneath world"s driest hot desert
In a finding with implications for the search for extraterrestrial life, researchers have discovered microbial life 13 feet below Earth's most inhospitable desert. The research is published in the journal PNAS Nexus......»»
New method makes finding bat roosts easier for conservationists
A new algorithm is making it easier for ecologists and conservationists to find bat roost locations—reducing search areas by nearly 375 times their previous size. The technology combines microphone detector data with a bat movement model to identif.....»»
SpaceX’s Falcon 9 rocket just completed a milestone mission
SpaceX achieved its 300th successful touchdown of a Falcon 9 first-stage booster on Tuesday, nine years after landing the first one......»»
Mercedes explores electric frontier with G-Wagen off-roader
The G 580 retains the iconic boxy ladder frame design but ditches a combustion engine for a quartet of electric motors and a hefty 116-kilowatt-hour battery......»»
Astrophysicists work toward unification of turbulence framework—weak-to-strong transition discovered in turbulence
Turbulence is ubiquitous in nature. It exists everywhere, from our daily lives to the distant universe, while being labeled as "the last great unsolved problem of classical physics" by Richard Feynman. Prof. Dr. Huirong Yan and her group from the Ins.....»»
China issues highest-level rainstorm warning after deadly floods
More than 100,000 people have been evacuated due to heavy rain and fatal floods in southern China, with the government issuing its highest-level rainstorm warning for the affected area on Tuesday......»»
New algorithm solves century-old problem for coral reef scientists
An algorithm developed by a Florida Tech graduate student creates a new ecological survey method that allows scientists to unlock important historical data from a vast trove of coral-reef photographs dating back more than a century......»»
The 2024 Porsche Macan EV has character, pace, and the right badge
The new electric Porsche Macan starts at $78,800, deliveries begin later this year. Enlarge / The third-generation Porsche Macan drops the internal combustion engine—this one is only available as a battery electric vehicle. (cr.....»»
TikTok fears point to larger problem: Poor media literacy in the social media age
The U.S. government moved closer to banning the video social media app TikTok after the House of Representatives attached the measure to an emergency spending bill on Apr. 17, 2024. The House voted on each of the four components of the bill, and the.....»»
Everest mountaineer"s letters digitized for the first time
Letters written by the famous mountaineer George Mallory have been made available to a global audience for the first time, in the centenary year of his fatal attempt to scale Everest......»»
Two NASA sounding rockets launch from Alaska during solar flare
Two Black Brant IX sounding rockets launched from Poker Flat Research Range in Fairbanks, Alaska, April 17, 2024, during an M-class solar flare for NASA's sounding rocket solar flare campaign......»»
What Will macOS 15 Be Called?
We’re less than a month away from WWDC 24 which means we’re just weeks away from finding out the name for macOS 15. We haven’t seen any rumors, but we do have a potential list of names. Apple’s annual developer event kicks off.....»»