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Joined 1 year ago
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Cake day: June 12th, 2023

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  • If you’re into hard sci-fi and you’re looking for a good read, they actually dropped a pretty good recommendation with that reference at the end - Larry Niven does a great job of blending real-world theories like Dyson spheres and advanced propulsion drives, with some of the more far-flung standards of the genre like an intra-planetary teleportation grid.




  • I’m not a scientist, but one could argue that it’s likely that all three planets had nitrogen, but only Earth still has it.

    I don’t know much about Venus, but I know that part of why we have way more atmosphere than Mars is due to Earth’s magnetic field. Earth has a much stronger magnetic field than Mars, and it does a pretty good job of shielding us from the solar wind; meanwhile Mars has been slowly trickling atmosphere into the void for ages because it lacks that shielding.

    Given that CO2 is actually super heavy, it makes sense that Mars would lose almost everything else first. You mentioned H2, but it’s also almost twice as heavy as N2 - because of this, nitrogen would concentrate at higher altitudes, eventually becoming exposed to the solar wind as lighter gases were stripped away.

    As for Venus… Again, I’m not an expert, but a quick search suggests that it has a weak magnetic field as well. With a primarily CO2 atmosphere and a weak magnetic field, one could infer that Venus is in a similar position to Mars, and any significant nitrogen that may have been in its atmosphere has simply been stripped away by the solar wind.


  • I feel like I would use it voluntarily if it put the sponsors in the “add a destination” menu. I tend to use Google maps for longer trips, and I try to add any stops on the way to my route so I don’t miss them - if I hit “add destination” and it offered, for example, Citgo stations, 7-11s, and Dunkin Donuts on my route, then I would probably get gas and snacks at sponsored locations almost every time.

    As it is, though… Well, just having a Dunks on the way to the laundromat doesn’t make me want to stop in and buy a coffee. Driving by ten of them “randomly” on my way to another state isn’t going to make me any more likely to stop at one.


  • Believe it or not, that’s actually what the complimentary branded matchbooks that smoke shops and strip clubs used to give away were meant to be!

    They weren’t an ad directed at you, though - they were an ad directed at your friends. You’d go hang out somewhere, set your cigarettes and matches down, and people would see the logo.