• 0 Posts
  • 87 Comments
Joined 1 year ago
cake
Cake day: June 16th, 2023

help-circle








  • Yeah, that’s just a shitty (or out of spec) time base. My Seiko watch gains 1-2 minutes a day, but it’s completely mechanical so it depends on temperature and winding/mechanism tension for accuracy. There are electronic timing circuits which are resistance and capacity based, and as the resistance and capacitance of the system drift (time/age and temperature) they also drift. A crystal, made to vibrate at high frequency (piezoelectrically, iirc), will provide a much more stable time base and be accurate to seconds over many days’ time.

    Interesting aside - time keeping is how ships at sea used to determine where they were in the ocean. Latitude can be found from the stars, but longitude can’t so it needs a time reference standard. The book, Longitude tells the story of the search and the competing methods for determining location prior to the invention of crystal/electronic time bases and modern GPS. I won’t say that the storytelling is particularly gripping, but the actual path to discovery is fascinating.


  • That’s probably just fluctuations in the line frequency and the method for keeping time varying between the two (one might use a crystal that drifts). Being on the “wrong” frequency will have it shift by hours every day. I had a (US/60Hz origin) microwave in my apartment in Bonaire (50Hz) last year that never seemed to have the right time, and when I did the math I realized it was the frequency - it was behind by ~4 extra hours every day (50/60 x 24 hours).









  • If you’ve ever had a contact allow a service to read their contacts, you are in their database. That then gets cross-referenced with the (relatively few) online store providers the first time you use that address - or the obfuscated emailname.store@* version that was meant to serialize or identify spammers but which the simplest script can undo. Now your shipping/billing address, phone, and partial purchase history can be linked with every social media company that weird chick who did upside down keg hits with you that one night decided to allow contact access. Or your aunt Gertrude.

    And it’s not even that complicated. Are you in the contacts list of anyone who has ever used the internet? Google, yahoo, or microsoft definitely know who you are in their internal databases and can create a web of contacts and likely contacts just from a couple of emails. Heck, I remember when there were “contact synchronization” websites where you could transfer your contacts between gmail addresses, or to/from other mail services. It was free, so I can just about guarantee they’re selling all of your info, which has been checked and corroborated by however many of your contacts decided to use their services.



  • Marketing: We need to defend this - what’s something people are really excited about?

    Engineer: Stainless steel; you can’t make a good stainless without nickel

    Salesman: Oooh - I know! How about nickels? Everybody loves nickels and their worth 5 cents each!

    Engineer:

    Marketing:

    Intern: You know, they use nickel in battery packs for electric cars

    Marketing: Oh, right - everybody likes electric cars. Green and vroom-vroom, I love it!

    Engineer: You know that electric cars don’t go vroom-vroom, right?

    Marketing: I’m going with electric cars, it’s a feel-good use people will get behind.