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The most effective individual steps to tackle climate change aren't being discussed
"We found there are four actions that could result in substantial decreases in an individual's carbon footprint: eating a plant-based diet, avoiding air travel, living car free, and having smaller families. For example, living car-free saves about 2.4 tonnes of CO2 equivalent per year, while eating a plant-based diet saves 0.8 tonnes of CO2 equivalent a year.

"These actions, therefore, have much greater potential to reduce emissions than commonly promoted strategies like comprehensive recycling (which is 4 times less effective than a plant-based diet) or changing household lightbulbs (8 times less effective)."
environment  climatechange  cars  travel  aircraft  vegetarianism  veganism 
10 days ago by pozorvlak
Hermeus | Hypersonic Aircraft Startup | Atlanta
Hrmm, Generation GO alumni here, which implies SEI people. Dr. John Olds getting back into the hypersonic game?
supsersonic  hypersonic  private  business  jet  aircraft  airplane  research  technology 
13 days ago by asteroza
NASA funds aviation research on a new fuel concept - Illinois Engineering
Uh, LH2 is frankly a dead end for most aviation applications, baring forever flying HAPS HALE UAV. If cryogenic fuels are gonna be done, it will likely be methane.
cryogenic  liquid  hydrogen  fuelcell  power  generator  electric  airplane  aircraft  NASA  research  technology 
13 days ago by asteroza
Mendelssohn Pilot Supplies | Pilot Shop
MENDELSSOHN Pilot Supplies a trading name of GPS Europe Ltd. supply a vast range of aviation equipment and avionics from their Edinburgh warehouse / pilot shop.
aviation  electronics  safety  navigation  gps  communication  aircraft  supplies 
24 days ago by asaltydog
Project Habu – SR-71 – Pratt & Whitney J58 engine

The Pratt & Whitney J58 engine, coupled with the world’s most complex air inlet system, propelled the Blackbird aircraft seamlessly through an enormous range of speeds. Originally, she was a Navy project designed to power the Martin P6M SeaMaster flying boat. She would eventually be painstakingly adapted to work at Mach 3+ flight and see operation in something very different than a seaplane.
The Blackbird aircraft is constructed of over 90% titanium. The engines, however, used materials which could withstand even higher temperatures. Pratt & Whitney turned to exotic nickel and cobalt-based alloys, like Inconel X (which was also be used in the skin of the X-15 rocket plane, Mercury Spacecraft and Apollo F-1 Engine combustion chamber), with some of these materials experiencing operating temperatures of 1,600 °F. Fluid lines were plated with gold or silver. The exhaust ejector was coated with a thermal insulating ceramic which would reach 3,200 °F, undergoing so much heat and pressure that it would never char.
aircraft  military  history  technology  engineering  materials  blackbird 
24 days ago by rmohns

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