AI & Robotics Specialist | 2/3d animation UI/UX | Developer of AI & Robotics -focused publications | Aerospace Scholar | Intellectus Machinae, Lux Futuri
Pennsylvania
Joined August 2009
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- Following1.3K
- Followers1.7K
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Kirk Greninger retweeted
Find a customer!
America’s capital markets are an underrated strategic weapon.
Anduril CEO Brian Schimpf on turning that edge into a tool for national priorities:
"The US capital market structure is, it's not like it's 10% better than anyone else, it's like several thousand times better than anyone else. Like it is just wildly better."
"If you're leaning into that and saying, 'Hey, we actually have great capital allocators that know how to underwrite companies and lean in on these things.' Great, let's just use the capital stack in a way that is aligned with national priorities around certain industries, certain capabilities, things like that."
"Where else could you finance $200 billion of data center investments with like basically no real revenue to show for it? Like it's crazy."
@SchimpfBrian @eriktorenberg
Kirk Greninger retweeted
"Built assuming no network exists."
QuanSoft's Whisper SDK holds drone data securely on board during a link outage and sends it once a link returns. It doesn't claim to beat jamming, just to keep the data.
Planning for no network should be standard for unmanned systems.
uasnewsus.com/articles/quans…
Kirk Greninger retweeted
“From flight trials to special operations.”
TEKEVER says USSOCOM has purchased its UAS following validation, training, and flight testing at multiple sites. The number and models remain undisclosed.
An ISR procurement milestone.
uasnewsus.com/articles/tekev…
Kirk Greninger retweeted
“Follow the gourde!”
Patrick Egan asks why Western drone integration is still tangled in standards, lobbying, and delays while China expands its low-altitude economy.
From Part 108 to Buzzy the Drone, who is the system really serving?
uasnewsus.com/articles/nest-…
Kirk Greninger retweeted
Tesla's Roadster jump is really a spacecraft reaction-control problem in a car.
Thrusters, ~80 kW of suction fans, and a controller deciding which force to use. The same stack runs across land, air, and space.
uasnewsus.com/articles/tesla…
Kirk Greninger retweeted
The models in @pixio_ai are getting so powerful!
Everything you are about to watch was generated on @pixio_ai .
The dancers. The rain. The camera falling through a mirror floor and coming out underneath, where they are still dancing, upside down.
Nobody filmed it. Nobody composited it.
Learn How - pixio-dance-video.vercel.app…
Kirk Greninger retweeted
The NJ drone thing reminds me of someone testing flying cars. Aka 2 seat and 1 seat autonomous drones.
Kirk Greninger retweeted
50 legendary internet rabbit holes you can spend hours exploring 👇🏼
1. zoom.earth — Watch the world via live satellite imagery
2. flightradar24.com — See every plane currently in the sky
3. marinetraffic.com — Track all ships at sea in real time
4. windy.com — Live map of winds and storms
5. lightningmaps.org — Watch lightning strikes hitting Earth in real time
6. earthquake.usgs.gov — Live list of recent earthquakes
7. submarinecablemap.com — Ocean cables carrying the internet
8. globalforestwatch.org — Watch forests disappear from space
9. worldometers.info — The world's statistics, second by second
10. internetlivestats.com — Current number of tweets and searches being posted
11. thetruesize.com — Compare the true sizes of countries
12. oldmapsonline.org — Maps from centuries ago
13. davidrumsey.com — Archive of 150,000 historical maps
14. openstreetmap.org — World map drawn by volunteers
15. window-swap.com — Look out the window of a random person around the world
16. virtualvacation.us — Virtual walks through cities
17. mapcrunch.com — Teleport to a random spot on Earth
18. atlasobscura.com — Catalog of the world's strangest places
19. neal.fun — Interactive knowledge experiences
20. htwins.net/scale2 — Scale journey from atom to universe (Updated HTML5 link)
21. eyes.nasa.gov — Explore the solar system in 3D
22. stellarium-web.org — Real sky map in your browser
23. apod.nasa.gov — NASA's astronomy picture of the day
24. images.nasa.gov — NASA's entire visual archive, free
25. pudding.cool — Visual articles told through data
26. ourworldindata.org — The state of the world with real data
27. gapminder.org — What we mistakenly think we know about the world
28. informationisbeautiful.net — Visualizing complex data
29. data.worldbank.org — World Bank's open data
30. data.tuik.gov.tr — Turkey's official statistics database
31. archive.org — Archive of millions of books, films, and software
32. gutenberg.org — 70,000 free books whose copyrights have expired
33. openlibrary.org — Record of every book in the world
34. loc.gov — U.S. Library of Congress digital archive
35. europeana.eu — Europe's cultural heritage archive
36. dp.la — America's digital library collection
37. artsandculture.google.com — Tour museums from home
38. rijksmuseum.nl — Download artworks in high resolution
39. wikiart.org — Archive of 250,000 artworks
40. publicdomainreview.org — Forgotten visual treasures of history
41. openculture.com — Free archive of culture and education
42. metmuseum.org — Met Museum's open collection
43. musicmap.info — Family tree of music genres
44. radiooooo.com — Pick a country and decade to listen to that era
45. listen.hatnote.com — Turn Wikipedia edits into audio
46. wikipedia.org — Random knowledge well
47. timeanddate.com — Time, sunrises, and sky events
48. sciencedaily.com — Live stream of science news
49. arxiv.org — Free preprints of scientific papers
50. observablehq.com — Visualize data with live code
Save this list. You’ll probably come back to a few of these later. 🔖
Follow @Xaviercoderx for more useful websites, AI tools & tech resources.
Kirk Greninger retweeted
Our first aerospike rocket thruster. 5 kN (1,125 lbf) kerolox.
Aerospikes are among the hardest rocket engines to develop. Few teams have successfully hot-fired liquid-propellant versions, and none has yet flown to space.
Although the geometry is radically different from a conventional bell nozzle, the governing physics are the same. That makes aerospikes an ideal fit for Noyron, which generates engines from underlying physical principles rather than from CAD drawings.
An aerospike turns the conventional nozzle inside out. Its toroidal geometry eliminates the fixed outer bell wall, which forces a conventional thruster to choose one atmospheric regime.
A sea-level bell nozzle sacrifices performance at high altitude. A vacuum-optimized nozzle cannot be operated safely at sea level.
Aerospikes are efficient under all atmospheric conditions, making them highly relevant for reusable upper stages that fly back from space to the launch site.
Cooling them is the biggest challenge. Our engine uses liquid oxygen to regeneratively cool the inner spike and kerosene fuel to cool the outer shroud. The resulting warm LOX gives the engine a nice Isp boost.
We hot-fired this engine in December 2024. Its early success encouraged us to pursue aerospikes as a parallel track across our engine programs.
Kirk Greninger retweeted
Will the $12 million in @FAANews research welfare be enough to pull ChurroDrone IOs batter out of the fryer? ChurroDrone IO CEO BJ Hipster is ready to cash in on his VC-funded, industry butt-smooching unicorn. Hes got his cut-and-paste waiver, paid for his hypothetical safety case, and an ex-administrator-blessed community-standard parachute. Will BJ come in for the big cinnamon-flavored score? @YouTube
youtu.be/9Q7_XT6xPJE?si=x3Z_…
Kirk Greninger retweeted
Every time I start doing research for a story I dig up more nuggets lost to time. There are some pragmatic and viable solutions for safe airspace integration for the community and the regulator that went ignored. I guess everyone was happy with the junkets and letting the CCP take down our lunch counter and move it to China?
dcabr.org.br/download/cursos…
Kirk Greninger retweeted
National Security and Airspace Sovereignty are just an afterthought with the @FAANews @FAADroneZone C'mon, Duffy! @USDOT @NASA
uasnewsus.com/articles/issue…
