The military is being trained (for the first time in decades) how to manage without computers.
This is good, not just as a defense against cyber attacks, but because it will give them a lot more insight. Even when I started my career in aerospace, I worried that young people were being too confident in computer output, without understanding the fundamentals sufficiently to know whether or not it made sense.
I also subscribe to the theory that tech hubs have brought people together who might not have met in previous times, and their kids are getting a double dose.
Not a lot new here for people who read Vance’s book (or the more recent ones), except he thinks he could put Starship on the moon in two years. From now.
He also describes how he was inspired by Apollo, so that is one good thing that came of it (besides winning a battle in the Cold War).
I still recall the day that I saw a truck come by and threw the contents of both the recycle bin and the trash bin in the same place. But we still separate, for no obvious good reason except, I guess, if not to virtue signal, to at least avoid opprobrium from the neighbors.
If NASA wants to send humans to the Moon or Mars, it should not spend billions on random cost-plus infrastructure projects that supposedly might come in handy if some day there were a program to go. Instead it should just take competitive bids for delivery services. It should incentivize the development of additional systems, including rovers, habitats, life support, power units, space suits and so on, the same way.
It’s pretty clear that, whatever individuals might desire, institutionally, neither NASA or Congress care whether or not they send humans to the moon or Mars, and haven’t since 1972. I do think, though, that despite Bob’s skepticism, the entrepreneurs will get us there.
This is good news. Hans Koenigsmann just did a press conference with Kathy Lueders in which they announced the root cause of the explosion. Apparently it was a failed check valve prior to the test as they were pressurizing, that resulted in some NTO setting fire to titanium piping, causing an overpressure which then cascaded to mixing of the hypergolics. At least that’s my preliminary understanding. They’re going to go from check valves to burst disks, and the fix doesn’t seem to be on the critical path to getting to a November flight.
So, the Dragon 2 explosion happened because a leaking check valve allowed some oxidizer to flow into the pressurization system. The fuel plumbing is probably stainless steel, the helium plumbing is titanium. When oxidizer was pressurized against this titanium it burned.