A Reddit Refugee. Zero ragrets.

Engineer, permanent pirate, lover of all things mechanical and on wheels

moved here from lemmy.one because there are no active admins on that instance.

  • 12 Posts
  • 123 Comments
Joined 1 year ago
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Cake day: December 22nd, 2023

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  • Be careful when describing Lemmy as a “privacy valuing” service.

    Your personal identity privacy is improved, yes, as there are no corporations to actively sell this data… but your identity (the email and info you signed up with) is at the whims of the admins of whatever instance you signed up for, and hoping their opsec is good.

    The privacy of your content does not exist at all. Anything you post including direct messages is blasted out across the entire fediverse to ALL federated servers, where you have NO control who is downloading and storing it.

    You should treat Lemmy like it is a early 2000s forum site, where you should feel comfortable saying what you like, but never use anything personally identifying anywhere on your profile (including a personal email during sign up), never share anything personal in DM’s, and consider a proxy/VPN to further obscure your ID from instance admins.











  • “Yes” with the asterisk that there is no phase change, and the flow paths are segregated.

    In a heat pipe, water is installed such that it is kept near it’s liquid-gas phase change point on the pressure-temperature curve. When heated, it turns to “steam”, travels thru the center of the pipe, condenses back to liquid on the cold/fins side (giving off all it’s heat), then returns via capillary action on the metal foam walls of the pipe.

    In a thermosiphon, the water never leaves the liquid phase. It simply relies on the density change based on temperature (hot water becomes less dense, and will rise to the top of a column) to force some circulation to occur. The hot fluid rises out of the heatsink and displaces the cooled water in the radiator, which then flows down the other side to return to the heatsink.

    Very old cars (<1920) used to rely entirely upon the thermosiphon effect, rather than a pump.
    It’s not terribly efficient, especially at higher dissipated power densities. They are also very prone to being overloaded with heat, if the overall loop temperature gets too high and/or the radiator loses some efficiency (e.g clogged with dust), the water can start to boil on the hot plate side and you’ll lose basically all cooling effect when your siphon is blocked with steam.





  • The point is not that it is being used, the point is that corporations must protect their trademarks or else they may lose the exclusive rights to them. Intel also still uses the “Core” branding on their modern CPU’s so it wouldn’t be a stretch for them to try and continue legally protecting “Core 2 Duo” under the guise of retaining the “Core” part of their trademarks.