On a related note, here's a throwback for old-timers: https://adagide.martincarlisle.com/
one of my old professors. Blast from the past!
Readit Newsagsacct commented on Show HN: Getada: rustup-like installer for Ada's toolchain/package manager getada.dev... · Posted by u/ajdude
Of course, a large part of the cost of those engines is that they're designed to be reusable (a difficult task with hydrogen/oxygen engines due to thermal shocks and hydrogen embrittlement). This made sense when they were being built for the Space Shuttle. It no longer makes sense now that they are using the same engines for an expendable first stage.
Which makes the plans to throw them away with each launch even more silly. They are cobbling together jobs programs from space shuttle components with no real strategy except "worked before" and "we can charge a lot of money for this".
SLS is the last major gasp of a military industrial complex that has completely taken over congress. The fact that we're paying $146M for each engine on the SLS (takes 4 to launch) and SpaceX is promising an entire launch for Starship at <100M is obscene. (Oh, and SLS ends up at the bottom of the ocean...Starship you can just refuel).
While I don't agree with all thing Musk, he's revolutionized the global spacelaunch industry by reducing costs 10x. Now, totally dominant in an industry, he's making that rocket obsolete in favor of a better one (Spaceship).
I think the article says iron levels are negatively correlated to longevity, but "the association might be due to a already-known correlation to haemochromatosis" which I have no idea what that is. I presume it's some known population that's old that happens to also have an enrichment of haemochromatosis but where individuals in that population without it do not show a positive defect in longevity?
Edit: specified as negatively correlated
Due to them saying that "the association might be due to an already-known correlation to haemochromatosis" I'm assuming they didn't have the data to correlate haemochromatosis to the data.
Haemochromatosis is a genetic disorder where individuals are unable to get rid of excess iron. If properly diagnosed, this is easily treatable with bloodletting (blood donation in this century :-)
Haemochromatosis is the sort of genetic disease that could really screw with data like this. Undiagnosed haemocromatosis leads to early death....so the correlation of excess iron to longevity should be treated as a weak piece of evidence until we can exclude people with the genetic disorder.
Apollo does a decent job making their stuff more innocuous. https://apolloautomation.com/products/sensor-stand?pr_prod_s...