I'm having some personal issues causing some severe depression and anxiety. I'd like to get past this time as fast as possible, and my days are dragging on. I can't sleep, which would be a good way to make time go fast. But I also can't just play video games, I don't have the motivation to play more than a few minutes and it...
Is it ok to be cautious? Yes!
But mostly when you want to setup your own system and record or monitor your own premises. In which case you can select systems or cameras that have features and functionality, as well as connectivity, in ways you decide.
You want to use the ring app to be notified someone is at your door? You're gonna have to give their system access to the video.
But, you can also setup your own system without ring, and use self hosted tools to do essentially the same thing.
As for being cautious that cameras on the street are tracking you? Hard to really do anything about that (even though the effort required would be prohibitively immense to track an individual through all the various systems).
Hmmm. While that would technically stop Russia from needing the troops in Ukraine, I don't think that just giving a dictator sections of land because he claimed them is a good path.
"Just give up when I take your shit" is a shit take.
Yeah, make them out of metal, that rolls on metal roads.
And those metal tires can carry a ton more weight, so put a lot of people in them who are going the same way.
I have started unironically saying idgaf in sentences. Often when "fuck this shit" would fit as well.
But fts isn't really easy to pronounce, where idgaf is pronounceable.
I love in Colorado, which is a pretty dry state, so while I had heard of "wet filament", I never considered it to be a problem that I would have to worry about. I had seen people creating dry storage bins for their filament, but figured that must just be for people in humid climates....
I store in home Depot containers with desiccant in the bottom.
And have another modified to print from. (Printed spool holder with bearings, reverse Bowden through container side)
It really didn't change my workflow, just where to get the spools to load, and where to load them.
Sometimes on Lemmy these seem like the only jobs that actually exist, but I'm sure there's a lot of people here with different and unusual lines of work.
Hi, anyone have any good self hosted solution for a doorbell camera? What I need is to have the option to look at who is at the door and be able to actuate a lock (relay operated). I have a cheap Chinese brand solution, but it uses an unknown cloud solution and is very unreliable. A phone app would be fine, but if there's a...
Has anyone ever given any thought to trying to capture all the floodwaters that seem to be increasing lately, and moving them to the more drought affected areas?
Perfect idea. Let's drop a huge pipeline from the Mississippi all the way through to California.
The energy to build the pipeline, and run the pumping stations will certainly not add to the already problematic energy causing climate change causing these droughts that we're "fixing" with this huge pipeline.
I default to the "I am having vision problems" and leave out the "I just can't see myself going in to work". Or the "my vision in life isn't lining up with works vision".
So I have this silly idea/longterm project of wanting to run a server on renewables on my farm. And I would like to reuse the heat generated by the server, for example to heat a grow room, or simply my house. How much heat does a server produce, and where would you consider it best applied? Has anyone built such a thing?
As far as heating efficiency goes, servers aren't really that good. 100% efficiency as all the electricity they use ends up as heat.
Compare with heat pumps that can get 300+% efficiency.
What I do is have my server in the same "room" as my water heater (share airspace), and use a heat pump electric water heater.
At least then all the heat my server makes is used for something good, instead of extra AC usage in summer (winter is a wash, as I need the heat in the house anyways)
I've been using RealVNC for family computer help and have been wanting to setup a self hosted replaced for a while now, but haven't had the time. RealVNC has recently axed their free levels, so I'll use it as a reason to setup a self hosted solution....
Basic blender went bad (motor ran but spindle wasn't rotating). I wanted to disassemble to see if it could be repaired. Three of the four screws were Phillips head. I had to cut the casing open in order to discover why I couldn't unscrew the fourth. It was a slotted spanner.
My old $200 Motorola G9 Power phone lasted almost 4 years with only very minor scratches. Obviously in that period I have dropped it a few times getting out of the car, where the phone sometimes work itself out of my pant pocket while I drive, and then it slips out when I get out of the car. But no problem on my previous phones,...
The only difference here is, you're born with the tools you have, so you use what you need to make them do what you want. He bought this one specifically with the flaw when others without the flaw are available (though with different specs or price).
I see this post as a rant by someone who didn't do some research, refused to use what was available to protect the purchase, and is blaming the manufacturer for them buying it.
I was thinking about how I missed having an indoor thermometer that measures humidity. It's such a small specific thing, one I'd never think of getting unless pushed to it (which I was by one particularly dry winter). But I like having one now....
Making it out to be something it's not?
I pointed out that there are other ways than helicopters to see the tops of trucks. You dogpiled the "nobody does that".
The Federal Aviation Administration said Monday, May 6, 2024, that it has opened an investigation into Boeing after the beleaguered company reported that workers at a South Carolina plant falsified inspection records on certain 787 planes. Boeing said its engineers have determined that misconduct did not create “an immediate...
No.
The packs aren't like flash storage where they have spare blocks to use when one block wears out. Essentially switching in something that wasn't used at all before.
The cells are all connected physically, being charged and drained. They do not connect and disconnect cells when wear occurs.
They have software limitations on how far to charge and discharge (at what voltage and c rating).
Yes, a larger pack will last longer if the charge/discharge cycles aren't as "deep". But no, they don't have spare cells just to cover wear.
No. Handwaving a microcontroller doesn't fix it unless you have two high current contactors per cell, and multiple intermediate busses and contactors, it's not going to work.
That's going to add a ton in transmission complexity, and weight, that doesn't really benefit the battery at all.
Along with the fact that cells should be balanced in wear and cycles. It just doesn't make sense.
Most packs have only 2 contactors. Not 2 per cell.
The only way to have spare cells that are not in active use all the time is to physically disconnect the cells from the rest of the pack.
The only way to do that is to have contactors at each "end" of the cell, or cell pack, that you want to switch in and out.
Car packs are ~360-800v nominal depending on the car/pack.
To get to those voltages with the normal cells (~3.2-3.7v nominal)you need between 95 and 250 cells in series (wired one to another directly, all the power goes through all the cells).
Let's do an example. The simplest pack possible. A 95s1p meaning 95 cells wired negative to positive in a single line. A contactor at each end to cut power to the car for safety.
This is the simplest pack. Also the lowest range and worst for cell wear.
So say you want to "double" the range?
You "simply" build an entire separate pack, and drop it next to the first with it's own set of contactors, right?
But in that case you have doubled the amount of interconnect bus in the pack(the wires to get the high current out of the battery), as well as contactors.
You could get to the same power storage (range and longevity) by making a 95s2p pack with one set of contactors.
So instead of 2 lines of cells, you connect each cell to it's partner with a small piece of wire then connect that to the next cell in the pack.
This means you don't need the extra long wire from the back to the front of the pack for the second set. The tradeoff is you can't physically disconnect the second cells, but you don't need the weight and complexity of extra contactors, and the long wire for second cell set.
So what's the actual benefit of physically disconnecting the second set of cells?
When one battery dies in the 95s1p pack, the whole pack is useless, as all the power from the remaining 94 cells must travel through the one high resistance cell.
In a 95s2p pack each cell only has to take half the current of the entire pack (improving as you go up in parallel cell count).
You would be able to run one 95s1p dead, then switch to the other and keep driving till that is dead. But the efficiency of that is actually less than you get if you just had one 95s2p you ran from full till dead.
So again, being able to physically disconnect some cells in the pack only adds weight, complexity, and risk.
The Tesla car with "less range" that can be "unlocked" is literally just a software setting that limits the charge/discharge voltage of the entire pack, not switching in and out battery cells physically.
Not sure where you're getting "one total massive cell" from anything I wrote.
Every pack is made of a bunch of smaller batteries. You can't get 400v without batteries in series, from batteries that only make ~3v.
Just saw your last paragraph edit.
It's a car pack, every ounce matters, and doubly so when it only adds complexity, reduces efficiency, and reduces reliability.
And an estimate of weight of the extra interconnect.... let's say it's 8' from back to front of the pack, a 350v pack and a 250kw motor. This means minimum of 715 A.
Busbar that is rated for 700-800A @30c rise has cross section of 1/4"x2". For the 8' length that means we have 48in^3 of copper. That is ~16lbs of copper alone. Not counting the contactors, insulation, etc.
It is, especially when the choice that leads to that extra weight is less reliable, less efficient, and more costly. All things you don't particularly want in a car
So let's get back to the real discussion on how the packs actually work.
Can you explain how a microcontroller is supposed to put cells in and out of the circuit?
Below is a look at the most exasperating news from streaming services from this week. The scale of this article demonstrates how fast and frequently disappointing streaming news arises. Coincidentally, as we wrote this article, another price hike was announced....
But then you get shrinkflation in the product itself. Less emulsifiers in the soap, drinks with corn syrup replacing sugar, and powders like cinnamon cut with lead powder.
Not saying it couldn't be done, just that businesses are really incentivised to find the loopholes and exploit them.
Holy shit this.
And not even "educated" people.
Where I work is about half degree holding engineers... many of these engineers were seen outside staring at the partial eclipse Monday.
Does different parts of the world use different standards for water pressure similar to voltages?
In the US for example the standard is 110V for voltage and 80psi for water. In Europe, voltage is 220V, is water pressure different there too?
How to make a month go by as fast as possible other than sleeping
I'm having some personal issues causing some severe depression and anxiety. I'd like to get past this time as fast as possible, and my days are dragging on. I can't sleep, which would be a good way to make time go fast. But I also can't just play video games, I don't have the motivation to play more than a few minutes and it...
Is it okay to be cautious about CCTV cameras? ( lemmy.world )
I don't want to sound like a "aluminum foil hat" guy but I'm concerned about CCTV cameras (private and public) around our towns....
Pyongyang Says It Will Send Support Troops to Ukraine Within a Month ( www.kyivpost.com )
How to make an EV tire that won’t pollute the environment ( www.theverge.com )
18+ it is kinda crazy "fuck this shit" hasn't become a common acronym yet
Wtf is that about?
Dry your filament!
I love in Colorado, which is a pretty dry state, so while I had heard of "wet filament", I never considered it to be a problem that I would have to worry about. I had seen people creating dry storage bins for their filament, but figured that must just be for people in humid climates....
Too many posers ( lemmy.world )
If you don't work IT, retail, or food service what do you do for work?
Sometimes on Lemmy these seem like the only jobs that actually exist, but I'm sure there's a lot of people here with different and unusual lines of work.
US sues Adobe for ‘deceiving’ subscriptions that are too hard to cancel | The Justice Department alleges that Adobe hid early cancellation fees and trapped consumers in pricey subscriptions ( www.theverge.com )
Doorbell kamera solution
Hi, anyone have any good self hosted solution for a doorbell camera? What I need is to have the option to look at who is at the door and be able to actuate a lock (relay operated). I have a cheap Chinese brand solution, but it uses an unknown cloud solution and is very unreliable. A phone app would be fine, but if there's a...
what's a good ip camera for home assistant?
I don't have yet any preferences. Cheap, easy to set up, secure. What do you use and can recommend?
Flood water use
Has anyone ever given any thought to trying to capture all the floodwaters that seem to be increasing lately, and moving them to the more drought affected areas?
I have a broken tibiulnar plex... ( lemmy.world )
Intelligence chief warns Canadians that China can use TikTok to spy on them ( www.cbc.ca )
Server as heating device - how do I do this?
So I have this silly idea/longterm project of wanting to run a server on renewables on my farm. And I would like to reuse the heat generated by the server, for example to heat a grow room, or simply my house. How much heat does a server produce, and where would you consider it best applied? Has anyone built such a thing?
remote assistance software suggestions
I've been using RealVNC for family computer help and have been wanting to setup a self hosted replaced for a while now, but haven't had the time. RealVNC has recently axed their free levels, so I'll use it as a reason to setup a self hosted solution....
Obscure screw added so appliance cannot be disassembled ( lemmy.world )
Basic blender went bad (motor ran but spindle wasn't rotating). I wanted to disassemble to see if it could be repaired. Three of the four screws were Phillips head. I had to cut the casing open in order to discover why I couldn't unscrew the fourth. It was a slotted spanner.
4 months durability for an $800 phone!
My old $200 Motorola G9 Power phone lasted almost 4 years with only very minor scratches. Obviously in that period I have dropped it a few times getting out of the car, where the phone sometimes work itself out of my pant pocket while I drive, and then it slips out when I get out of the car. But no problem on my previous phones,...
ASUS breaks your ROG Ally if you don't pay $200 for warranty repairs: SCAMMING COMPANY! ( youtu.be )
Are there any household gadgets you found unexpectedly useful after you'd gotten them?
I was thinking about how I missed having an indoor thermometer that measures humidity. It's such a small specific thing, one I'd never think of getting unless pushed to it (which I was by one particularly dry winter). But I like having one now....
The world is saved ( sh.itjust.works )
Student protesters face same suspensions as those who bring assault rifles to campus ( www.latimes.com )
MFW it's dark outside and I'm hungry and kinda cold and lonely and I just wanna come in for snacks and blankets but the human doesn't let me in. (rule) ( pawb.social )
Sauce...
The FAA investigates after Boeing says workers in South Carolina falsified 787 inspection records ( apnews.com )
The Federal Aviation Administration said Monday, May 6, 2024, that it has opened an investigation into Boeing after the beleaguered company reported that workers at a South Carolina plant falsified inspection records on certain 787 planes. Boeing said its engineers have determined that misconduct did not create “an immediate...
Elon Musk reveals Tesla software-locked cheapest Model Y, offers 40-60 more miles of range ( electrek.co )
All the ways streaming services are aggravating their subscribers this week ( arstechnica.com )
Below is a look at the most exasperating news from streaming services from this week. The scale of this article demonstrates how fast and frequently disappointing streaming news arises. Coincidentally, as we wrote this article, another price hike was announced....
Wish I could charge people $100 an hour when I answer their calls like a 1-900 number ( lemmy.world )
What a deal for them IMO
Chess is over 1500 years old, but we can still learn from it. ( lemmy.world )
cross-posted from: https://lemmy.world/post/14929687...
To Fight ‘Shrinkflation’ France Will Force Retailers to Warn Shoppers: Merchants will be required to put signs in front of all products that have been reduced in size without a corresponding price cut ( www.nytimes.com )
When a real user uses the app ( lemmy.ml )
Predictions on the state of work in the year 2000 ( feddit.de )