• 2 Posts
  • 93 Comments
Joined 1 year ago
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Cake day: June 30th, 2023

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  • Do you primarily use hand tools or power tools? Also, are you looking for a primary work bench, or an assembly bench?

    Hand tool benches, you want them to be really heavy and sturdy since they get loaded in shear a lot by things like planing and sawing. For a hand tool bench, you basically need to decide what you have to work with, and what your work style is like. I like go be able to just clamp stuff to my bench top, so a Nicholson bench is a little annoying for me. Also, think about the space you have available, and whether you are right or left handed. For handtool work, I would prefer a face vice and a tail vice, with plenty of dog holes.

    For power tools, the name of the game is modularity and mobility. Everything should be the same height and on wheels so you can move stuff around to act as infeed/outfeed tables. They don’t need to be as heavy or sturdy, so you can use some space under the bench for more efficient storage. It’s also nice to have a few ways to clamp other tools down.





  • Bunch of city people want to destroy rural people’s lifestyles.

    CAFOs are not “rural people’s lifestyle”. They are a relatively modern invention to create the largest amount of meat while employing the fewest people possible. Trying to defend them as “rural people’s lifestyle” is very disingenuous. If you want to defend them, there are reasonable arguments to make, like the price of food, the land use, water use, etc, compared to meat produced other ways.

    Even if somehow having a corporation own 100,000 chickens that they raise down the road from you was an important part of your lifestyle, I cannot stand the constant argument that somehow, rural folks’ way of life is more important to preserve than urban folks’. As we make the climate worse, and pump out more pollution, and have more kids, and create more technology, everyone’s life is going to change. Rural folks have significantly more kids than urban folks and they produce more burden on the environment, yet somehow, it’s on people who live it cities who are supposed to bear the costs because we can’t possibly do anything that affects people who live rurally?

    I, and most people, want small, family run operations to succeed. There’s no reason we have to protect Big Ag to keep small operations. Big Ag is the biggest threat to the little guys.




  • I’m pretty disappointed in scishow for this one. Usually, they are pretty good.

    There are, in fact, deep conceptual flaws. There are a lot of grifters trying to sell ideas to fight climate change that can be easily defeated by high school level math. They try and spin the obvious shortcomings as “engineering challenges” where you could figure out a way to make it more efficient if only you invested in them enough. The math just doesn’t even check out at 100% efficiency.

    Potential energy is m x g x h. Let’s do the math for the Burj Khalifa. The top floor is at 585 meters. According to their published fact sheet, there are 57 elevators, and the service elevator has a capacity of 5500 kg. Let’s pretend that every elevator has this capacity, and they all go to the top. It would store 5500 x 57 x 9.8 x 585=1.797 GJ. This is about 500 kWh, or about the energy used by 17 average American homes for a day.

    According to wikipedia, the cheapest Tesla has a 57 kWh battery, so if there are 10 electric cars in the parking garage, they can store more energy than all the elevators.

    Hyperloops have the exact same issue, the math never checks out, so any company promoting them is fraudulent.






  • That’s how it has been in the US. Now, though, if you already have a passport, you can renew online and take the picture yourself, and get it mailed directly to you.

    The thing that makes getting a passport slightly tricky to begin with in some circumstances is needing proper ID. In the US, there’s no generalized law saying that you have to have certain forms of ID. Most people use drivers licenses as ID, but obviously not everyone has one (by choice or as a consequence of drunk driving). There are a lot of people without ID, and there are ways to get ID, but they can be difficult for people without resources. A birth certificate is hard to get if you don’t have one already, especially if you don’t know where you were born.




  • I don’t understand why people like Facebook marketplace. It’s so transparently a way for them to just gather more shopping habits data on you, and it’s too easy for scammers to use. They act like having an account somehow makes it harder to scam.

    I would much rather support the website run by a skeleton crew that has no unnecessary features than get a few bucks more on FB marketplace. If I’m selling something that I’ve used, it’s cause I want to get rid of it, anyway.




  • A huge problem with the wine industry in America is that they’ve always tried to position themselves as a premium product with respect to other forms of alcohol. With respect to the information available to the consumer, the pricing seems to be random. Products that are aged understandably are going to cost more, and huge brands should be cheaper than small brands. Other than that, prices just seem to be set to correspond to whatever market segment they are targeting. A $20 bottle of wine may taste way better than a $15 bottle, but it could also be worse. There’s no indication of what could make the $20 bottle better than the $15 bottle other than the fact that it’s more expensive. Some brands put a little bit more info in, like the percentage of grapes, and sometimes they tell you where the grapes came from, but most consumers are just going to grab the cheaper bottle.

    Contrast this with beer, where you know higher abv=more ingredients=more expensive, aged beers are more expensive, and beers from smaller or foreign breweries are more expensive. Breweries often tell you the exact ingredients that went in, so you can get a decent idea of what a beer will taste like before ordering, and you can make an informed decision to buy slightly more expensive products.

    Wine is a little more tricky because there are fewer ingredients, and less processing, but they could absolutely give way more info. The wines that are good just try to market it as the magic of terroir in a bottle, rather than actually pointing out how and why they are better or taste different.


  • Yeah, this should really be the future. There’s a lot of unnecessary materials used/energy wasted to give us our current “all power costs the same all the time” system.

    According to this, about 70% of US household energy use is heating/cooling the space, or water. Much of that can be time shifted. What can’t be time shifted can be stored in cheaper ways than battery storage.

    1 tonne of rock heated (or cooled) 20° C above ambient is a store of about 4.7 kWh. According to that same site, the average yearly energy use in the US is 10500 kWh. If 70% is heating/cooling, that’s about 20 kWh per day, so you’d need about 5 tonnes of rock to hold that enough energy. That seems like a lot, but it’s just about 2 cubic meters of rock.

    If you use water, it has 5 times the specific heat (but less density), so you only need 1 cubic meter. Probably easier to heat/cool/use, too. Water can also be heated more than 20 degrees above ambient, too.

    Really, we should create incentives for homes to be built with high thermal mass. Even without any sort of fancy direct heating or cooling of a thermal mass, it will store significant heat.