jccooper

16 ms·

151.
by jccooper 4y ago
I think this is targeting ocean currents, which are solar-powered convection between the tropics and the poles, rather than tidal currents.
152.
by jccooper 4y ago
There's a market for cruise ships... as a destination. There's basically no market for ocean liners. There's, what, one left? Perhaps people could be convinced to take an "air cruise", though it'll never have t
153.
by jccooper 4y ago
It's a hypersonic testbed. Which basically means DoD, though I suppose if you came along with a civilian usecase they wouldn't hang up the phone.
154.
by jccooper 4y ago
While great in the hands of a competent designer, the "low-tech" interface gets a bad rap because it easily becomes a maze of inscrutable modes and dual- or triple-use buttons in the hands of a careless designer.
155.
by jccooper 4y ago
Cars are usually loaded onto a Ro-ro on their own power, and will have some amount of fuel on board. They typically want 10-25% full tanks to account for various contingencies, but I don't know how carefully that's monitored. Give
156.
by jccooper 4y ago
Probably "flare" in the sense of "pulling up for landing".
157.
by jccooper 4y ago
A lot of "recycling" gets diverted to landfill domestically, too. How much depends, but lots of stuff is sorted out as unrecyclable, unidentifiable, or just plain unprofitable. Probably including most straws and other small items
158.
by jccooper 4y ago
The fake houses used to hide London Underground cuttings are pretty interesting: https://www.dailymail.co.uk/news/article-7533383/Behind-fa-a...
159.
by jccooper 4y ago
Australia has its own tectonic plate. Greenland doesn't. I'm sure that helps.
160.
by jccooper 4y ago
Etching masks are usually digitally printed; they shouldn't care about the shape of the traces.
161.
by jccooper 5y ago
At least resell it. Plenty of people out there still using them.
162.
by jccooper 5y ago
It's because a large number of new entrants, all started within a similar time window having seen the same market opportunity, are going to start flying soon. While demand for small launch may be growing, payloads are not multiplying a
163.
by jccooper 5y ago
Likely on the new engine they used for Thimbleweed Park. If you want to make something similar, there's a number of point and click game engines (and game engine layers, such as for Godot and Unreal) around. Heck, even SCUMM is still (
164.
by jccooper 5y ago
Maybe mercury is different (though I doubt it), but current electric propulsion sats use nothing like that much mass. A Boeing 702 HP (a big GEO comsat) Xenon propulsion system has a capacity for 266kg of Xenon; uses about 5kg per year for
165.
by jccooper 5y ago
Nuclear is fine with load following. Most plants run as baseload because it makes sense for them to do so, given the surrounding energy mixture and capital costs, etc, but it's not some sort of immutable law of the technology. Many exi
166.
by jccooper 5y ago
At $1.7m for 100t, it probably wouldn't even be worth sending a Starship to orbit to fetch it down.
167.
by jccooper 5y ago
Soyuz isn't really in the same class as F9; its GTO payload is something like 2.5t, where F9 is like 5.5t. (The equivalent launcher on the Russian side was Proton at 6+t. And indeed, it sold lots of commercial launches until eclipsed b
168.
by jccooper 5y ago
Starlink is likely to eventually have a mobile-base capable terminal. Probably not by this summer, though.
169.
by jccooper 5y ago
Yes; satellite boards tend to have conformal coatings, it helps but it's not a complete solution. (The coatings also help avoid shorts from junk floating around, and launch vibration.) Because of the inherent unreliability and difficul
170.
by jccooper 5y ago
Seized foreign assets are often used for recompense in such situations. It can take a while to work through the courts, though.
171.
by jccooper 5y ago
Powerpoint even has a special mode for creating handouts, by printing a non-displayed notes section. There's no need to put the outline on the slides... other than being less effort.
172.
by jccooper 5y ago
For context, leaded gasoline phase-out began in 1973, based on the 1970 Clean Air Act. It was largely gone in the US by the 80s but not officially eliminated (except for General Aviation) until 1996. Other countries continued to use leaded
173.
by jccooper 5y ago
"Vegetable oil" is likely to be partially or mostly soy, as it's the cheapest vegetable oil.
174.
by jccooper 5y ago
It seems that they have rubber gaskets on the ends. Once the sections are in place, friction (from the foundations and overburden of that segment and the rest of the tunnel) would hold it in place. There do also seem to be systems that have
175.
by jccooper 5y ago
Hm. Seems to be called Simutrans-Extended now. Under that name, still seems to be under development.
176.
by jccooper 5y ago
I've always enjoyed the theory that the Wild Man figure is a cultural memory of the last days of the Neanderthal. It's a bit far-fetched, since they've been gone for a very long time, but recent realization of specific cultur
177.
by jccooper 5y ago
There are plenty of caves that show evidence of long-term use of fire and burials, a good indication of habitation. However, it's true that caves were never a primary mode of habitation, just one that was convenient when it could be fo
178.
by jccooper 5y ago
I haven't played in a while, but providing it still exists, the Simutrans-Experimental "branch" solves a lot of weird economic issues in the main game. Once you're into Simutrans, that one is worth a look.
179.
by jccooper 5y ago
It depends on density and cross section (and solar flux); a 500km orbit can be 2-30 years, depending. That's all basically still in the "self-cleaning" domain. Being rather dense and flat, I'd expect Starlink to be on th
180.
by jccooper 5y ago
An iPhone will eventually notify you about a tag that is following you. You can get a "Tracker Detect" Android app that will do a similar thing. There's also plenty of apps that'll just tell you all the NFC devices in yo

More ›