tectonic

26 ms·

361.
The Orbital Index: a weekly technical newsletter about the space industry(orbitalindex.com)
3 points by tectonic 6y ago|1 comments
362.
by tectonic 6y ago
This is way beyond me, but Ethan Siegel provides a lucid rehash of scientific theory in general, and 3 reasons why Wolfram's new 'Fundamental Theory' is not yet anywhere near a scientific theory. https://www.forbes
363.
by tectonic 6y ago
Great idea!
364.
by tectonic 6y ago
Today’s xkcd: https://xkcd.com/2308 See the hover text ;)
365.
The Orbital Index(orbitalindex.com)
2 points by tectonic 6y ago|0 comments
366.
by tectonic 6y ago
https://saagarjha.com/blog/2020/05/10/why-we-at-famous-compa...
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by tectonic 6y ago
Looks like you just submitted it to HN too: https://news.ycombinator.com/item?id=23192651 :) Love that book!
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by tectonic 6y ago
Scott Manley has a good video about hypergolic fuels too: https://www.youtube.com/watch?v=AFLmqQ5ceS8
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by tectonic 6y ago
This book is way more entertaining than one would expect of a book from 1972 about rocket propellants. It's now back in print, probably because Musk called it "fun". In addition to the infamous section about chlorine trifluor
370.
All about China's Tianwen-1 Mars mission and JPL's Mars helicopter(orbitalindex.com)
1 points by tectonic 6y ago|0 comments
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China’s Tianwen-1 Mars mission is about to launch(orbitalindex.com)
2 points by tectonic 6y ago|0 comments
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Orbital Index, Issue No. 63(orbitalindex.com)
1 points by tectonic 6y ago|0 comments
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by tectonic 6y ago
Tim Dodd just released an excellent (and long) video comparing the costs of SLS with Falcon Heavy and (eventually, maybe) Starship. https://www.youtube.com/watch?v=KA69Oh3_obY&feature=youtu.be SLS will cost upwards of a
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by tectonic 6y ago
Thanks! We sometimes talk about atmospheric vehicles, but are mostly focused on space.
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by tectonic 6y ago
Honestly don't know.
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by tectonic 6y ago
We covered the rotating detonation engine on Orbital Index a few months back. The main conclusion was that, while more fuel efficient, the RDE is currently way too unpredictable for real use. Here's a cool video of the circular detonat
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Fantastic NASA NIAC Concepts(orbitalindex.com)
2 points by tectonic 6y ago|0 comments
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by tectonic 6y ago
See also: https://www.rtl-sdr.com/receiving-dead-satellites-rtl-sdr/
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by tectonic 6y ago
Agreed! I've been really enjoying Waking Up.
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by tectonic 7y ago
From https://www.almaobservatory.org/en/press-release/alma-reveal... : "the concentration of CO is higher than anyone has detected in any comet within 2 astronomical units (au) from the Sun,”suggesting that “t
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by tectonic 7y ago
Noted, thank you.
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Happy 30th Birthday, Hubble(orbitalindex.com)
1 points by tectonic 7y ago|0 comments
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In Pursuit of PPE(nejm.org)
300 points by tectonic 7y ago|174 comments
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What Is Interferometry?(orbitalindex.com)
1 points by tectonic 7y ago|0 comments
385.
by tectonic 7y ago
I think it's interesting that it uses a Snapdragon processor running Linux and communicates over commercial Zig-Bee 900 MHz links. Tons of technical details here: https://rotorcraft.arc.nasa.gov/Publications/files&
386.
Show HN: HospitalHero(hospitalhero.care)
1 points by tectonic 7y ago|0 comments
387.
by tectonic 7y ago
This reminds me of this short piece about debugging a live Saturn V ( http://www.zamiang.com/post/debugging-a-live-saturn-v ), and also a detailed video about the Saturn V's Launch Vehicle Digital Computer ( https:&
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NASA lays out its sustainable return to the lunar surface(orbitalindex.com)
9 points by tectonic 7y ago|0 comments
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by tectonic 7y ago
Yes! We highlighted these in yesterday's Orbital Index ( http://orbitalindex.com/archive/2020-03-31-Issue-58/ ). See also NASA's free history e-book collection: https://history.nasa.gov/boo
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Show HN: The Orbital Index, a weekly space industry technical newsletter(orbitalindex.com)
3 points by tectonic 7y ago|0 comments

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