The dose makes the poison. At the concentrations you’d get from household precursors, it would be fine.

Now, take glacial acetic acid and treat it with high-concentration peroxide? Now you’ve got something there. But most people don’t have easy access to either.

dorks

Some of us use the Kelvin scale on a nearly daily basis in our jobs that primarily focus on sweating the small details.

This image is a reference to things like this, where you send dry (containing low water content) solvent through a column of activated alumina to make it even more dry.

It doesn’t really work as well with some solvents. The one I used in grad school had DCM, toluene, THF, and acetonitrile. If we needed dry DMSO, DMF, DMAc, acetone, MEK, or alcohols they had to come from a sealed bottle.

Same problem as in 2016. Everyone assumed they’d beat Trump. Their main opposition would be in the primaries, because nobody would really vote for him, right?

Wrong, twice. And as bad as the first term felt, this one has been so much more catastrophic.

I used to work at IBM. This guy is a classic case of manager brainrot and has filled the top few tiers of the company with the same. The only reason they make money is the rank and file know how to feed them trendy bullshit that makes them feel smart, which happens to also be a good way of separating other companies’ dumb C-suite types from their money.

But even a blind squirrel finds an acorn every once in a while.

Reusable

Let’s save that term for hardware that’s demonstrated reuse in operational flights. So far, I think it’s only Falcon 9, New Shepard, and Electron that have launched paying customers on a reused booster.

Well, my rocket can get 250 tons to LEO. It’s also just a CAD model but like 75% of these are too.

The view from the NSF stream right now looks like the lower section blew open sideways. Maybe they were pressure testing the methane tank and it didn’t go well?

So that’s a proposed upgrade from about 2,460 kN to 2,847 kN per BE-4, or about 15-16%. If nothing else it’ll help NG do something other than crawl upwards off the pad. (For reference, Wikipedia says Raptor 1 was 1,810 kN, R2 is 2,260 kN, and R3 will be 2,750 kN.)

Also, this part about the heavy variant just bugs me:

The vehicle carries over 70 metric tons to low-Earth orbit, over 14 metric tons direct to geosynchronous orbit, and over 20 metric tons to trans-lunar injection. Additionally, the 9x4 vehicle will feature a larger 8.7-meter fairing.

Rocket companies saying their paper rockets do something (in the present tense) is terrible. It does nothing yet. It’s a design, not a vehicle. But BO can’t even keep that present-future tense consistent within the same paragraph.

It was such a godawful movie but this got a chuckle

In the revolutionary context, the extra days were all piled into the end of the year. Kind of a special short month, or more realistically a set of days not in a month. But yeah, leap days were added there when necessary.

Twelve months of five weeks of six days plus five or six days at the end for Christmas and New Years would absolutely rule. As long as weeks became 4+2 and not 5+1, anyway. I say we drop Thursdays and just keep the rest of the day names, they’re fine.

It takes a while to go from orbital insertion to operational orbit, but that would be the last 40ish launches worth of satellites working their way up.

Maybe a good fraction of them are parked as on-orbit backups?