Wolfram alpha suddenly makes even less sense
JustEnoughDucks
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JustEnoughDucks@feddit.nlto memes@lemmy.world•Morning people + Runner People is a deadly combination3·4 months agoIt’s so interesting how people’s bodies differ! I feel 2x better when working out fasted than with food in the last 4 hours or so. Otherwise I feel sluggish or a bit nauseated while running and my stomach will turn with heavy weights.
I only partake in the finest carapils
JustEnoughDucks@feddit.nlto Technology@beehaw.org•Wayback Machine Saves Thousands of Federal Webpages Amid Purge of Government Data Under Trump2·4 months agoDoing my part with 20-30mbps upload 😂
JustEnoughDucks@feddit.nlto Free and Open Source Software@beehaw.org•my tier list of open source android apps I've tried:2·5 months agoNot for everyone. I like simply typing 3 letters of the app that I want and it being first up every time. It saves a lot of time rather than swiping multiple home screens or clicking into folders. Finding an app for someone who has never used it though is difficult like if I lend my phone to someone.
JustEnoughDucks@feddit.nlto Free and Open Source Software@beehaw.org•my tier list of open source android apps I've tried:9·5 months agohttps://immich.app/ I would also put in A tier. Not without its failings and requires a self hosted component, but holy hell is it good.
KISS launcher is also S. It does what it sets out to do and does it well. Not everyone’s style, but it is close to flawless for people who like it.
Heliboard A tier. Much better (right now) than florisboard but no swipe typing
AntennaPod easy S tier or even higher. Completely refined, great podcast experience, almost no bugs, great stats, looks very polished, one of the best podcast apps including all non-foss
Eternity for Lemmy B tier. Great UI, but not all of the old functions from infinity are either disabled or translated to Lemmy which leads to some crashes and broken buttons.
LiftLog (B tier) is an open source weight lifting app. Not yet on fdroid, but hopefully in the future. Very simple, very beautiful interface, everything that I personally need except it doesn’t yet have the feature to order your lifts chronologically during a workout which sucks when you have to modify the order or lifts done because you go to a public gym
And this is why peertube will never actually take off outside of a Utopian future of unlimited energy and a future where everything is perfectly distributed
Who is going to pay the hosting costs? Who is going to pay the bandwidth costs? Let’s say magic happens and the users donate enough for that. Who is going to pay the creators who that is their main source of income?
Now what will happen when people demand 4k content everywhere, and then 8k after that? That quadruples the cost of the bandwidth and hosting costs.
I absolutely hate hate hate subscription models and hate ads. There has to be a subscription model for any video hosting platform, and YouTube doesn’t split up into exclusivity deals like shitty steaming services to screw over the consumer for profit. So at least there is that.
Decentralized systems work extremely well for text and even audio-based services. Video is a whole other beast, especially long form video at high resolutions.
JustEnoughDucks@feddit.nlto Memes@lemmy.ml•Where are these resources and efforts for crimes against regular people?20·7 months agoIt’s funny because rich people notoriously do NOT pay the wages of police because they tax dodge so hard that it often crosses the line of illegal, even with all of the extremely pro-mega-rich laws and exemptions that america has.
MiniUSB is much more robust than microUSB. Those connectors would fail pretty quick while I have never even heard of miniUSB breaking. Fuck microUSB.
Lol, you literally quoted me, didn’t actually read what you quotes, and then did something completely different.
Do you know that battery life ≠ battery capacity? That is not the same measurement as I have already tried to teach you 3 times.
Please state the calculation that you would use to “determine how often you have to recharge” that is valid for Wh and not for Ah.
What is its idle power draw? What is its power draw under load? Playing video? Sleep mode? That source gives nothing which determines battery life. All it gives is a nearly useless capacity number, just like all other manufacturers. So not valid at all. You still have exactly 0 more information about battery life.
If I am wrong, please state your calculations of what the battery life is with that 54Wh battery.
Your entire argument was “Ah is useless and Wh gives consumers the information to determine battery life” So go ahead, determine the battery life.
How is this any different at all if they said that it is a 5.8Ah battery? They don’t give any current or power draw.
As an exercise:
can you tell me the battery life difference between an arbitrary Laptop A with a 54Wh battery and Laptop B with a 27Wh battery?
Please explain to me what the difference is between battery life if you have a 5000mAh battery and an 18Wh battery.
Please state the calculation that you would use to “determine how often you have to recharge” that is valid for Wh and not for Ah. I am all for it. If you can cite a single source where the manufacturer gives a specification that would give battery life in Wh, and not in Ah, I will concede the entire argument and say that you were right the whole time in every comment make a note that you were right. Please show your calculation work.
The thing is, it does not matter how much charge the battery holds, it does matter how much energy it holds. Without knowing the Voltage the Ah is useless.
This is patently, objectively misinformation and completely false. That is a direct quote of your words, today. That was your last comment. I have already laid out multiple examples of how Ah is a useful measurement and what you can do with it. Therefore, it is misinformation. It is not disinformation, but stating untrue things as fact is misinformation, even if you have no idea you are wrong.
Sorry, but you are simply wrong. Simple math says that you are wrong.
You can buck or boost convert nearly any voltage to any other voltage.
Then measure the current output of the battery, boom you have battery life.
Also electrical charge can be used in many, many very valuable calculations without involving voltage at all.
Let’s take an arbitrary example with an arbitrary battery powered device. Let’s say the battery is somewhere between 1V and 10000000V. You can’t measure it because you might blow up your multimeter.
You know that the battery is 5000mAh. You can safely measure that all of the circuitry is draining 1000mA because sense resistors or contactless magnetic current measurements don’t have anywhere near dangerous voltages. You know that the battery will last about 5 hours. What is the voltage? Doesn’t matter.
Yes, charge and the flow of charge is not the entire story, but to say it is useless or does not matter is just a straight lie. It is fine if you don’t understand electronics, but then don’t spit out misinformation.
Yes Watt-hours would give a more complete picture to slightly tech-inclined consumers (makes 0 difference for 99% of consumers), but then it returns to not mattering because you can do the 5s calculation yourself because single cell lithium batteries are overwhelmingly 1 nominal voltage.
Literally 90% of calculations related to efficiency are JUST as valid using mA as W.
Your device uses 12mA at idle with a 5000mAh battery has the same relevance as your 18.5Wh battery using 45mW at idle.
I believe it actually has to do more with historical conventions in electronics or math. (This is just what I remember from heresay when I was in university as an electronics engineer), but there is also a mathematical reason.
history hearsay theory
The easiest way to measure power draw is by measuring current draw (voltage across a sense resistor) way back before there were affordable, quality ICs to measure voltage and current and pretty much joule count.
To add to this, current sensors are much easier and cheaper than test machines that do the calculations for you.
When lithium batteries and NiCAD batteries became standard compared to the earlier lead-acid (which are measured in Wh), they had an extremely flat voltage curve compared to lead acid. They could be considered to be at a constant voltage.
Now cheaper electronics were being made and if a designer wanted to know how long a battery would last, they could take the nominal battery voltage that the battery would be at a vast majority of the time, and they could just measure the current draw over a short time of the circuit, 10s of calculations, and you have your approximate battery life. There is a joke that engineers approximate π to 3.
Even designing electronics today, everything is specced to current draw, not power draw. ICs take X current in mA during Y operations. Your DCDC converters have Z quiescent currents and from there you can calculate efficiency. It is much easier to work in current for energy running through the circuit.
Math units
Ah is a measure of electrical charge.
Wh is a measure of energy
Batteries and capacitors hold charge so are measured in Ah, generators that power the grid generate energy and use of that energy is measured in Wh (it also isn’t a “constant” voltage source like batteries as it is AC)
Hilti is what the pros use.
I got a 2nd hand old model from my girlfriend’s dad (still twist lock) and it is a damn beast!
The Bosch professional line of hand jackhammers (don’t know the english word) can’t hold a candle to hilti to be honest. Hiltis can go all day and not overheat. It is just damn expensive.
I was a signal integrity engineer so emag theory was my job for a while.
Honestly, magic is quite right. At the base level, how these fields are created and how electrons moving around results in these rules is just the magic of how our universe works.
You can discover the rules to live by, but why it works that way gets smaller and smaller until it’s magic.
JustEnoughDucks@feddit.nlto Free and Open Source Software@beehaw.org•Autodesk is a monopoly! We need FOSS for AutoCAD desperately2·11 months agoUI/UX is getting a serious overhaul also I guess
JustEnoughDucks@feddit.nlto Free and Open Source Software@beehaw.org•Autodesk is a monopoly! We need FOSS for AutoCAD desperately2·1 year agoSolid works does the same thing though. Not crashing but even opening a simple model takes ages in solid works and the vast majority of things are single threaded there.
Whenever we screen share a part in solidworks, it is literally 5-10 minutes of the meeting taken up by waiting for it to complete visual operations, load things in, and assembly constrainy computing.
And you pay a shit ton of money for solidworks. Freecad also has these problems, but it is surprisingly not extremely worse than some professional cad software outside of crashing. Topo naming problem, UI, and crashing was definitely the worst thing about it. Apparently 2 of those 3 are getting fixed now.
Considering the capitalists have forced the world to arbitrarily measure the “economy” by measuring how willing rich people are to play in the rich man casino…
My company switched over to it to use with sharepoint for our quality system instead of synology because all files need to be tracked and we were already integrated with Microsoft every other way. That was two months ago.
Since then, multiple people have come forward with problems about syncing documents.
I, myself had multiple times already in this short time where I would make changes to a file, save it, one drive would sync and tell me the changes were pushed, colleagues got the previous version while their one drives told them everything was synced, and then I had to open my version again from the Onedrive folder to see that it was the new version, manually save it again, and then manually pause and resume syncing, then FINALLY it would push the changes.
It isn’t common, but when you have hundreds of thousands of files and there is a 0.1% chance that it silently fails syncing some files with absolutely no indication, even in the admin logs, that happens many many times