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Joined 1 year ago
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Cake day: June 15th, 2023

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  • Considering that portals are quite literally linked in a spatial manner, it would make sense that they physically cannot move independantly. Moving the orange portal would also move the blue portal. Or from a different perspective: the portals are always fixed in space, but their surrounds can move.

    But that does not make the question shown here untestable. It just means the output portal will have a velocity of it’s own.

    How to test: place 2 portals next to each other on a wall. Then apply propulsion gel in front of the orange portal. And finally move yourself at high speed through the orange portal.

    If your speed is unchanged after exiting the blue portal, but your velocity has been inverted with respect to the direction that the wall is facing, we can conclude option B must hold.


  • For shits amd giggles, I put a couple of industrial 10W fans in my PC once. That probably still made more noise than this. It also created so much overpressure that I could feel air escaping the tower from every little hole or crack. You could hold a piece of paper to the side of the pc, and see it moving because of the air escaping between the side panel and the main hull.

    But if these are normal fans (max maybe 1,5W), then the amount of power drawn will be the same as a couple of hardrives.


  • Requesting a website is like sending a letter. You have to put the adres on the letter, or the post office (your ISP) won’t know where to send the request.

    DNS is like a phonebook, but for domain names. It is used to look up the adres you put on the letters you send (websites you visit). Using a custom DNS means that your ISP cannot block websites by omitting them from the phonebook. Adguard uses the same ability of omitting domain names to block ads.

    Consider: https://9gag.com/123 A DNS translates “9gag.com” to an internet protocol adres. It is never told that you will use https, or that you request “/123” from 9gag.com

    What you do on a website (request “/123”) is always hidden from your ISP IF AND ONLY IF the website uses https. Https puts the details of your request inside the envelope, instead of right next to the adres.