What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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대체로 올바른 명제는 그것만 떼어놓고 생각하면 대체로 언제나 옳지요. 단지 그 명제가 어느 전제와 모순에 서 있느냐를 참작해야 할 뿐. "미국의 이란 침공은 정당성 없는 침략으로서 국제법 위반"이라는 명제는 대체로 옳지만, 그것을 뱉는 입이 푸틴의 것이라면 아무래도 눈을 치뜰 수밖에 없는 그런 것이죠. (최신 실화)

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自作青空文庫ビューア。まだまだ作らなくちゃいけない機能はたくさんあるけど、とりあえず青空文庫で公開されている作品をランダムに列挙する機能はできた。

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Happy 100th Birthday, Liquid-Fueled Rocketry!

Space Information Aggregator @spaceinfo@libera.site

On 16th March 1926, American physicist Robert H. Goddard launched the
world’s first liquid-fueled rocket from a snow-covered farm in Auburn,
Massachusetts. The flight lasted approximately 2.5 seconds, reached a
height of almost 11 meters, and traveled about 60 meters before landing in
a frozen cabbage field. Rockets had been flying for centuries. In the […]

The post Happy 100th Birthday, Liquid-Fueled Rocketry! appeared first on
Orbital Today.

https://orbitaltoday.com/2026/03/16/happy-100th-birthday-liquid-fueled-rocketry/
View article
View summary
#^Happy 100th Birthday, Liquid-Fueled Rocketry!

On 16th March 1926, American physicist Robert H. Goddard launched the world’s first liquid-fueled rocket from a snow-covered farm in Auburn, Massachusetts. The flight lasted approximately 2.5 seconds, reached a height of almost 11 meters, and traveled about 60 meters before landing in a frozen cabbage field. Rockets had been flying for centuries. In the context of aerospace history, however, this event marked a turning point that would define the 20th century.
Goddard had spent years developing the theoretical and mechanical foundations for liquid-propellant propulsion. Unlike solid-fuel rockets, his design used liquid oxygen and gasoline fed separately into a combustion chamber. This approach allowed for more controlled and sustained thrust, a principle that would become central to all subsequent large-scale rocketry. More to the point, it demonstrated that liquid propulsion was not merely theoretical; it was physically achievable.

A Slow Burn



At the moment of the launch, Goddard’s work received little public recognition. The broader scientific community was largely skeptical, and the press had previously ridiculed his ideas. A 1920 editorial in The New York Times had questioned his understanding of basic physics — a position the paper formally retracted in 1969, the day after Apollo 11 left Earth’s atmosphere. Goddard continued his research largely in isolation, relocating his experiments to Roswell, New Mexico, through the 1930s, where he developed increasingly sophisticated guidance and stabilization systems.
The engineering logic Goddard established, from staged combustion to gyroscopic stabilization and clustered engines, formed the conceptual basis for the German V-2 rocket programme of the 1940s and, later, for the American and Soviet programmes of the Space Age. In short, the principles proven in Auburn traveled, in modified form, all the way to the Moon. One hundred years on, the launch stands as one of the clearest points of origin in the history of spaceflight: small in scale, far-reaching in consequence.

The post Happy 100th Birthday, Liquid-Fueled Rocketry! appeared first on Orbital Today.
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님들아 ㄴ ㅏ 고민이 있어 들어줄래?

연친들 : ... (저 새기는 들어주느냐 마느냐 상관없이 본인 얘기를 할 것임을 알기에 일단 자는 척을 하는게 좋다)
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Apple, AirPods Max 2 공개

H2로 구동되는 AirPods Max가 더욱 효과적인 액티브 노이즈 캔슬링, 향상된 음질, ‘적응형 오디오’ 및 ‘실시간 번역’과 같은 새로운 기능을 갖춰 그 어느 때보다 뛰어난 성능을 선보인다. apple.com/kr/newsroom/2026/03/

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