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Joined 1 year ago
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Cake day: June 9th, 2023

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  • It’s the same way you know the things outside your window are real. You look at the light coming to you from that object and make inferences as best you can. As long as new observations and inferences line up with old observations and inferences, then you can be reasonably confident that your growing model of the outside world is accurate. When something doesn’t add up then you revise your model and keep iterating with new observations.

    There’s no difference whether the object appears to be within our solar system or far outside it. We see something and we interpret what we can from the available observations. Occasionally, if something is close enough and interesting enough, we send a robot to orbit the thing or maybe land on it and gather better observations, like how Rosetta/Philae visited a passing comet.







  • “Resistor” usually implies a device with a fixed resistance value. A rheostat is a device with variable resistance. The two terms are not synonymous.

    As for condenser and capacitor, Wikipedia has an interesting tidbit:

    Early capacitors were known as condensers, a term that is still occasionally used today, particularly in high power applications, such as automotive systems. The term was first used for this purpose by Alessandro Volta in 1782, with reference to the device’s ability to store a higher density of electric charge than was possible with an isolated conductor. The term became deprecated because of the ambiguous meaning of steam condenser, with capacitor becoming the recommended term in the UK from 1926, while the change occurred considerably later in the United States.

    https://en.wikipedia.org/wiki/Capacitor




  • I still use Craigslist, but only for items I just want gone. Like, “This thing is free and sitting out on the curb. First one here gets it.” I’ve given up on actually buying or selling there. Too many flaky people who don’t know how to communicate or fail to show up at the agreed time and place.

    eBay is my long-standing go-to for buying/selling used things that have actual value. I’ve been screwed twice in 20 years. Both times it was a seller who took my money and never shipped my item. When I sell things, the buyers have always been great.

    I avoid Facebook Marketplace, though I hear it’s the popular spot now.


  • The biggest questions are where and why. You have a huge country to explore, but what makes any one town stand out as a desirable destination? Within any region or state you can find great places and crummy places, often right next to each other, so you really need to think about what you are looking for and what you want to avoid. Consider taking a long weekend to visit and explore a prospective area before you commit to it.