All current Formula One engines use turbo compounding. This allows the thermal efficiency to reach 50%, an extraordinarily high level. Principally, this is achieved by recovering some of the huge waste exhaust heat into usable mechanical work, by, essentially - sticking a

Fusion starships from BIS: indico.esa.int/event/309/atta… There's the classic Daedalus, the Icarus pinning its hopes on Ultra-Dense Deuterium, the mind-boggling Firefly and now the 'Ghost' using a plasma-jet magneti-inertial fusion drive to reach 0.05C then stop at its destination.

The EHang VT35 – a next-generation long-range pilotless passenger eVTOL. Discover its exceptional performance and intelligent design shaping the future of low-altitude mobility. 🚀

First test of my Halloween Costume 👻

ある項目について調べていると、ズバリじゃないけど隣接しているナニカが釣れたりします。ハミルトンっぽいけど何か違う気もする金属製プロペラブレードの加工段階展示、"one-piece steel prop blade at American Propeller Corp"ですって。 airplanesandrockets.com/magazines/flyi…

The Natives have fought and lived alongside what many call, “Star People” Most tribes have stories about these encounters. #ufotwitter #NHI 👽

May loving light shine on you youtu.be/lrF814OnFQ4

Nights are getting longer. But the darkness is not fatal. youtu.be/CebHAvPHyyU

F-16. Bagram Air Field, Afghanistan.

WTF Happened In 1971? wtfhappenedin1971.com

Plan B if you can’t get warp drive youtu.be/Jou7-3i7CZM

Crazy horse Memorial South Dakota USA🥰

Absinthe pour tous

Normalize making shelters for stray cats

トップブリッジ、今月中には鋳込んでみようかなと まずは自分用ですけどいずれ欲しい人に届けられたらなと

The DARPA Lift Challenge is offering $6.5M in prizes to innovators across America who design drones that can carry payloads 4x their weight, unlocking new possibilities for military & civilian applications. Registration begins January 2026.

Bell412のM/R HUBは、Flex Beamという方式を採用しています。 Beamは、たわみによってフラップ・ヒンジを形成します。Beamのたわみ中心が回転軸から離れていることによるバブ・モーメントに加え、フラッピングによる曲げモーメントも操縦力としてMastに伝わることで、良好な操縦応答が得られるのです。

A thread to help with a lazy Saturday morning. Enjoy! x.com/aeropaleo/stat…

Cats are the most beautiful animals on the planet

so very true