if I had to replace my tractor today I honestly have no idea which I would pick, but I think all of them come with irreplaceable software components. Are there any tractors available that have fully reviewable / replaceable control software?

cross-posted from: https://slrpnk.net/post/34029792

If you are in the market for a down-low secret crime pad, BOYLE properties can hook you up.

https://boyle.com/properties/5904-ridgeway-center-parkway/

New (or expanded) Nashville offices per Wired:

Estes Kefauver Federal Building

Nashville House Office Building

If you are in the market for a down-low secret crime pad, BOYLE properties can hook you up.

https://boyle.com/properties/5904-ridgeway-center-parkway/

cross-posted from: https://slrpnk.net/post/33818672

I have just found that another one of my LiPo battery packs has started to develop a belly, and I'd like to replace it with one where I can just swap out the cells rather than junking the entire unit. I haven't had much luck finding something that meets my, I think modest, needs.

Needs:

• USB 5V power (enough to charge one modern cell phone, slowly)
• replaceable cells (18650s would be ideal but I'd settle for something that took AA or AAA batteries too)

Nice to haves:

• USB-A and USB-C (though I can manage with either - I have a ton of cables for both)
• Fast charging (the more watts the better but all I really need is ~10W at most)
• Passthrough charging (can charge and keep the output hot at the same time)

Sky Pie:

• Hot swapping cells (can selectively discharge one cell or bank of cells, then switch to the other while the dead cells are being replaced)

For that last one, I think if I can find a pack that just meets the "Needs" requirements I can rig up two of them and a raspberry pi to handle the charge monitoring and source switching. I just would like something that uses commodity hardware like the 18650 to store the power, can deliver enough voltage to run the pi, and is designed to have the cells be user replaceable. Is there something like that on the market?

I have just found that another one of my LiPo battery packs has started to develop a belly, and I'd like to replace it with one where I can just swap out the cells rather than junking the entire unit. I haven't had much luck finding something that meets my, I think modest, needs.

Needs:

• USB 5V power (enough to charge one modern cell phone, slowly)
• replaceable cells (18650s would be ideal but I'd settle for something that took AA or AAA batteries too)

Nice to haves:

• USB-A and USB-C (though I can manage with either - I have a ton of cables for both)
• Fast charging (the more watts the better but all I really need is ~10W at most)
• Passthrough charging (can charge and keep the output hot at the same time)

Sky Pie:

• Hot swapping cells (can selectively discharge one cell or bank of cells, then switch to the other while the dead cells are being replaced)

For that last one, I think if I can find a pack that just meets the "Needs" requirements I can rig up two of them and a raspberry pi to handle the charge monitoring and source switching. I just would like something that uses commodity hardware like the 18650 to store the power, can deliver enough voltage to run the pi, and is designed to have the cells be user replaceable. Is there something like that on the market?

Bathroom sink stayed liquid overnight with just dripping, but the kitchen sink is on an exterior wall and froze solid last night. I got under there with a heat gun and got the water flowing again, fortunately the whole system didn't freeze so nothing burst. I also installed a heating cable with a thermostat on the pipe, got it wrapped up snug under some foam insulation, hopefully that'll keep it liquid as long as I keep some water running through it. gonna monitor tonight and see how it goes.

Sorry for no pics, it is very cold and I went as fast as possible.

cross-posted from: https://lemmy.world/post/42112119

https://www.votekristiburke.com/
Her website (she also sells anti-ICE merch!! )
ig

• Abolish ICE

And replace it with a humane immigration system grounded in due process, human rights, and accountability.

• Impeach Donald Trump

For ongoing abuses of power, violations of democratic norms, and threats to constitutional governance

• Healthcare for All
  Healthcare is a right, not a privilege. Guaranteed access for every person in this country.
• Tax the Rich
• Publicly Funded Scientific Research for the Public Good
• Well-Funded, Equal-Access Public Education
• Stop Funding Genocide
  I will not support U.S. military aid or funding that contributes to the mass killing of civilians in Gaza.

cross-posted from: https://slrpnk.net/post/32957140

I thought of this after reading the first example in the comm sidebar.

In elementary Microwave Math (the subset most people learn during the normal operation of a consumer microwave), there are two places, the seconds place and the minutes place. The seconds place is constrained to [00 - 99] inclusive for one hundred total possible values in that place. The minutes place can be constrained to the same set of symbols, in which case Microwave Math is simply a base one hundred numeral system operating in a base sixty place value system, leading to the mildly humorous situation of having two ways to represent the same numerical value, e.g. 01:20 = 00:80. Some microwaves may have an hours place, or different constraints on the possible values of the minutes place, for which we'll need...

Advanced Microwave Math! This introduces the concept of nested place value systems. Most of us are so used to place value numbering systems that we hardly notice how often we use them, but most numbering systems follow an implicit rule that the number of symbols is the same as the value of moving up a "place". This makes sense for counting because you don't need to move up a place until you run out of symbols, so you may as well make the value of the next place the next number you need to represent. Numeral systems don't have to follow this rule, and Advanced Microwave Math breaks it.

The simplest case is where the minutes place is bounded to the set of all non-negative integers. In this value system there are two places, each with their own rules governing which symbols are allowed and what values they can represent. the seconds place is constrained in value to 00 - 99 (decimal, or DEC), and has a place value of one. The minutes place might be constrained to [00 - 99DEC], [000 - 999DEC], or it might be that the minutes place can contain any non-negative integer.

After that, we come to the hours place, which functions more or less the same way as the minutes place, in that it can have various constraints on what values can be used, but it still has the same place value relationship to the minutes place of sixty that minutes has to seconds. This changes with the introduction of the days place, which has a value of 24DECxhours instead of 60DEC.

Expanding this system into weeks and months and years introduces the idea that, though the system is generally presented one with positional notation (the value of place n is some [usually fixed] multiple of the value of place n+1). This isn't necessary for Microwave Math, if each place can be defined by an arbitrary multiple of the of a base value e.g. the years place could be defined as 31557600DEC seconds (the "Julian Year"). The only requirement is that instead of position dictating the multiplier, each place must have a unique symbol denoting which multiplier is being used by that place. By convention they are arranged from largest multiplier to least, but 3 years, 6 months, and 12 seconds can just as unambiguously be written as 12 seconds, 3 years, and 6 months and refer to the same amount of microwave time (c.f. the American middle-endian date representation, a similar rule-breaking place value system that, if we insist upon using it, could really benefit from some non-positional place value indicator).

The value multiplier for a place doesn't have to be an integer either. The introduction of leaps (day and second) and other vagaries of calculating means that we might prefer to use a "mean" value where a year might be some non-integer multiple of seconds, depending on which period of earth's history one is in. There's no reason the multiplier has to be an integer, or non-negative, or real, or rational, or continuous or differentiable or have any particular reference to any other place. In addition, each place has its own rules about what values can be in it, and those rules may mean that each place can have infinitely many symbols representing infinitely many values.

The inner place value systems can themselves be a simple positional place value system like decimal, or they can themselves use Microwave Math, meaning that place value systems in Microwave Math can nest infinitely. I'm not sure what kind of number that is but Microwave Math has some crazy implications to it.

I thought of this after reading the first example in the comm sidebar.

In elementary Microwave Math (the subset most people learn during the normal operation of a consumer microwave), there are two places, the seconds place and the minutes place. The seconds place is constrained to [00 - 99] inclusive for one hundred total possible values in that place. The minutes place can be constrained to the same set of symbols, in which case Microwave Math is simply a base one hundred numeral system operating in a base sixty place value system, leading to the mildly humorous situation of having two ways to represent the same numerical value, e.g. 01:20 = 00:80. Some microwaves may have an hours place, or different constraints on the possible values of the minutes place, for which we'll need...

Advanced Microwave Math! This introduces the concept of nested place value systems. Most of us are so used to place value numbering systems that we hardly notice how often we use them, but most numbering systems follow an implicit rule that the number of symbols is the same as the value of moving up a "place". This makes sense for counting because you don't need to move up a place until you run out of symbols, so you may as well make the value of the next place the next number you need to represent. Numeral systems don't have to follow this rule, and Advanced Microwave Math breaks it.

The simplest case is where the minutes place is bounded to the set of all non-negative integers. In this value system there are two places, each with their own rules governing which symbols are allowed and what values they can represent. the seconds place is constrained in value to 00 - 99 (decimal, or DEC), and has a place value of one. The minutes place might be constrained to [00 - 99DEC], [000 - 999DEC], or it might be that the minutes place can contain any non-negative integer.

After that, we come to the hours place, which functions more or less the same way as the minutes place, in that it can have various constraints on what values can be used, but it still has the same place value relationship to the minutes place of sixty that minutes has to seconds. This changes with the introduction of the days place, which has a value of 24DECxhours instead of 60DEC.

Expanding this system into weeks and months and years introduces the idea that, though the system is generally presented one with positional notation (the value of place n is some [usually fixed] multiple of the value of place n+1). This isn't necessary for Microwave Math, if each place can be defined by an arbitrary multiple of the of a base value e.g. the years place could be defined as 31557600DEC seconds (the "Julian Year"). The only requirement is that instead of position dictating the multiplier, each place must have a unique symbol denoting which multiplier is being used by that place. By convention they are arranged from largest multiplier to least, but 3 years, 6 months, and 12 seconds can just as unambiguously be written as 12 seconds, 3 years, and 6 months and refer to the same amount of microwave time (c.f. the American middle-endian date representation, a similar rule-breaking place value system that, if we insist upon using it, could really benefit from some non-positional place value indicator).

The value multiplier for a place doesn't have to be an integer either. The introduction of leaps (day and second) and other vagaries of calculating means that we might prefer to use a "mean" value where a year might be some non-integer multiple of seconds, depending on which period of earth's history one is in. There's no reason the multiplier has to be an integer, or non-negative, or real, or rational, or continuous or differentiable or have any particular reference to any other place. In addition, each place has its own rules about what values can be in it, and those rules may mean that each place can have infinitely many symbols representing infinitely many values.

The inner place value systems can themselves be a simple positional place value system like decimal, or they can themselves use Microwave Math, meaning that place value systems in Microwave Math can nest infinitely. I'm not sure what kind of number that is but Microwave Math has some crazy implications to it.

I have recently accidentally come into possession of a bunch of old lead acid batteries, ranging from a few months to several years without charging or maintenance. I could just get rid of them, but I would like to recondition and reuse them as additional power storage for my solar array, if possible. I have been looking at desulfator chargers online and I am planning on getting one and hooking it up to the batteries and just seeing what happens.

Does anyone have any experience reconditioning old lead acid batteries? Are there pitfalls I should be aware of? Since they are of unknown condition, am I better off scrapping them and buying new?

cross-posted from: https://slrpnk.net/post/28931282

Justin Pearson, Democratic state rep briefly expelled from the TN State House for protesting gun violence, is running for US Congress.

Justin Pearson, Democratic state rep briefly expelled from the TN State House for protesting gun violence, is running for US Congress.