Casey Handmer @CJHandmer
Physicist, Immigrant, Pilot, Dad. Former Caltech, Hyperloop, NASA JPL. Founder @terraformindies. Read scrolls. Build more solar! caseyhandmer.com NASAdena Joined June 2012-
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Casey Handmer retweeted
If solar and wind make electricity expensive, why does it only happen in blue states? Why does it happen in blue states that *don't have* solar or wind? Why does *every single red state* with more solar and wind than the national average, have electricity that's *cheaper* than…
If solar and wind make electricity expensive, why does it only happen in blue states? Why does it happen in blue states that *don't have* solar or wind? Why does *every single red state* with more solar and wind than the national average, have electricity that's *cheaper* than… https://t.co/ntHJQK7r6p
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Casey Handmer retweeted
If you thought biology couldn't get any weirder, life finds a way: "We term females exhibiting this reproductive mode as xenoparous, meaning they give birth to other species as part of their life cycle."
The precautionary principle strikes again!
The precautionary principle strikes again!
Oddly enough I've discussed this with another former NASA admin, after which I did the analysis to prove that the Gateway can only "access" anywhere on the Moon's surface in the sense that it's not even close to optimal for *any* landing location. It bothers me that this…
Oddly enough I've discussed this with another former NASA admin, after which I did the analysis to prove that the Gateway can only "access" anywhere on the Moon's surface in the sense that it's not even close to optimal for *any* landing location. It bothers me that this…
Casey Handmer retweeted
Chinese solar will surpass US natgas in total power generated right around the same time Huawei catches up with Nvidia, late 2026 or early 2027 I’m feeling increasingly bleak about this stuff, we need to shake off the idiotic politics that are constraining solar deployment
Chinese solar will surpass US natgas in total power generated right around the same time Huawei catches up with Nvidia, late 2026 or early 2027 I’m feeling increasingly bleak about this stuff, we need to shake off the idiotic politics that are constraining solar deployment
Casey Handmer retweeted
Over the last three years, housebuilding in London has collapsed. Molior recorded just 2,158 private starts in the first half of 2025, around 5% of London’s (low) targets, and still falling. What is going on? I have posed this question to numerous specialists, most of whom…
Casey Handmer retweeted
China is laughing at this Senate hearing on NASA's lunar plans. It's the usual mishmash of parochial politics, lobbying for traditional space, backslapping, Star Trek references, and whistling past the graveyard.
The thing is, Elon could easily have bought his silence if not approval, and chose not to. ULA ponied up. Says a lot.
The thing is, Elon could easily have bought his silence if not approval, and chose not to. ULA ponied up. Says a lot.
Casey Handmer retweeted
It’s a development rocket. So is New Glenn, by the way, which definitely can’t take 45 tonnes to LEO right now. SLS Block 1 can’t do 95 tonnes to LEO because the ICPS couldn’t take it, and it can’t do any payloads to LEO anyway because the only two remaining flights it will ever…
It’s a development rocket. So is New Glenn, by the way, which definitely can’t take 45 tonnes to LEO right now. SLS Block 1 can’t do 95 tonnes to LEO because the ICPS couldn’t take it, and it can’t do any payloads to LEO anyway because the only two remaining flights it will ever…
Casey Handmer retweeted
@CJHandmer @grok "If the ocean were made of sodium, some damn fool of an engineer would propose a water-cooled reactor." Rickover's life mission was nuclear marine propulsion. Weinberg led ORNL's design of Nautilus' reactor. He certainly had different ideas what terrestrial reactors should be.
Casey Handmer retweeted
the biggest lesson from china is that scarcity can be out-innovated. twenty years ago, analysts claimed that limited oil and gas reserves would cap modernization, that furnaces and cars would be luxuries. now the country is blanketed in solar panels, and everyone drives an EV.
Casey Handmer retweeted
slide film is dying a long slow death — velvia 50, which was the most interesting slide film, is no longer made. very saturated reds, deep blacks, really interesting light fall off. shadows go a bit magenta, especially if it’s exposed badly or old film
slide film is dying a long slow death — velvia 50, which was the most interesting slide film, is no longer made. very saturated reds, deep blacks, really interesting light fall off. shadows go a bit magenta, especially if it’s exposed badly or old film https://t.co/5yRk0J7chJ
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