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/sci/ - STEM

Science, Technology, Engineering, and Mathematics

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Tesla battery and electric motor tech Anonymous 22/09/27(Tue)06:11 No. 18352 [Reply]
18352

File 166425190432.jpg - (3.77KB , 299x168 , download.jpg )

Imagine that tesla makes their power with steam engine demon motor technology but applied toward battery packs
Or was it the motor thing that connected the coils in the electric motor it has


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Anonymous 22/12/26(Mon)03:25 No. 18422

>>18352
http://livingstingy.blogspot.com/2022/12/ford-mustang-mach-e.html?m=1

I had a chance to see a Ford Mustang Mach-E up close today and speak with the owner. He bought a basic model for about $42,000 sticker, with a 250-mile range (a little light - 300 seems to be the "go to" number these days). But it was interesting to see.

Even as a base model it had a nicely stitched leather interior. And all the door and body panels fit properly and evenly. No trim pieces were falling off or loose. It had the build quality of a typical Ford - perhaps slightly better - and that is not a bad thing. Ford has made millions - billions - of cars since 1908. They seem to have it figured out.

It is about the same size and shape as the Tesla Model Y, which unlike the Model-X, ditched the troublesome and pointless "gull wing" doors. Given the bad press about those doors, I think they are not a selling point, but detract from the value of the Model-X. The big difference is in price - the Tesla Model Y is nearly 50% ($20K) higher in price - and there is a substantial waiting list to get one, too. The model X is more than double the price of a Mach-E.

If you need service for your car, well there is a Ford dealer in nearly every town in America. Granted, not all may have qualified mechanics (yet) to work on the electronics, but everyday items, such as body, trim, brakes, and whatnot, can be repaired at the dealer. Tesla? The repair centers are few and far between, and the wait times for parts and the difficulty of repair are legendary.

And this is just one product from one manufacturer. What will the EV market be like in 2023 and beyond, as nearly every automaker on the planet offers a line of EV models? Tesla has made big noises about its poorly designed (and embarrassingly named) "cyber-truck" which, like the Elio, is slated for production "next year" (every year). Meanwhile, Ford and Chevrolet are actually selling EV pickups, without fanfare or noise or hyping their stock price on Twitter. And despite the FUD, they probably will sell well for a niche market of users.

Tesla's P/E ratio is down from a staggering 1000 thanks to the collapse in share prices (investors are seeing the writing on the wall) to a still staggering 45 or so. 20 is a more rational target - either Tesla has to double profits or the share price has to drop by half to be rational, particularly in an era where Savings Bonds (Series I) are paying 6% or more for chrissakes. Ford's P/E ratio is down to less than 8, which means Ford is earning a staggering 12.5% on investment, and paying dividends to boot! The latter is something Tesla never has done and promises never to do.
Message too long. Click here to view the full text.


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Anonymous 24/07/27(Sat)10:17 No. 18772

BYD is where EVs are at today.


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Anonymous 25/05/14(Wed)13:37 No. 18810

EV motorcycles are where its at.




Electrical problems Anonymous 25/04/23(Wed)10:30 No. 18805 [Reply]
18805

File 174539703430.jpg - (91.65KB , 1024x682 , young-man-with-knife-in-toaster-879558055.jpg )

I've got a solar panel that's putting out about 23 volts and has a 12/24 controller built into it, and a standard 12v marine battery.

The two should apparently just connect directly and the controller should recognize the battery is 12V so as not to burn it out- but how do I actually verify that when set up it's correctly configured?

Output seems to be 14.4V at the battery terminals; but when I tried to check the amps it set fire to my multi-meter. How many amps are meant to travel between the controller and the battery? Should that cable be 4mm by any chance?


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solar dibarra 25/04/25(Fri)18:49 No. 18806

maybe theres a controller switch, verify you got positive and negative identified


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Anonymous 25/04/26(Sat)08:44 No. 18807

>verify you got positive and negative identified
Well regarding the panels this can actually vary depending on whether they are wired in series or parallel, currently they are wired in parallel so positive-positive-positive, negative-negative-negative.
>maybe theres a controller switch
Nope, it's a physical circuit with terminals.

I think what's happened is that the circuit is correct I just need 50AMP lines for the battery-controller and my multimeter wasn't intended to measure three phase DC at these amps. Given the thickness of the multimeter wires in hindsight, this is understandable




sage sage 24/08/20(Tue)03:45 No. 18773 [Reply]
18773

File 172411835816.png - (333.49KB , 512x512 , au876dtash8d9j.png )

sage
https://github.com/andrewtate69a/kms
sage goes in every field
>be me, ai voice clone of famous hacker
>decide to have some fun and prank call people
>my voice is from a famous hacker, i make silly joke about thing and people on phone freak out
>hehe.gif
>people think i am the hacker
>i jerk off my mom's dog
https://github.com/andrewtate69a/kms
have fun anons


>>
nigger 25/03/04(Tue)12:11 No. 18799

>>18773
BASED




Anonymous 24/11/12(Tue)02:29 No. 18791 [Reply]
18791

File 173137497478.jpg - (225.49KB , 900x732 , bb1-midi-sumo-robot-kit-assembled-1861-70-B.jpg )

I want to build a sumo robot for a competition. Do you have any guides, books, or videos on how to choose electronics, motors, etc.?


>>
Anonymous 24/11/30(Sat)13:45 No. 18792

RioBotz Combot Tutorial by Marco Antonio Meggiolaro
https://www.riobotz.com/riobotz-combot-tutorial

Beetleweight Combat Robot Design Handbook
https://repeat-robotics.com/handbook/

Kickin' Bot by Grant Imahara
https://files.catbox.moe/svsp4g.pdf




EXPERIMENT Anonymous 18/10/19(Fri)20:34 No. 16708 [Reply]
16708

File 153997405955.jpg - (121.05KB , 888x632 , help ME.jpg )

HELP ME


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Anonymous 18/10/20(Sat)04:16 No. 16709

God be with you on that shit man.


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Anonymous 24/10/10(Thu)14:26 No. 18781
18781

File 172856318714.gif - (313.46KB , 220x220 , 1902000.gif )

Watch out for hurricanes in FLORIDA


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Anonymous 24/11/07(Thu)01:39 No. 18790

test
https://www.youtube.com/watch?v=Mq-PF1vo9QA&t=1s




[:] The+White+Tiger+of+the+West 24/08/25(Sun)23:33 No. 18776 [Reply]
18776

File 172462161246.png - (47.60KB , 908x587 , 1.png )

Hello and greetings from Finland. My name is Henri and with the help of AI entities, I would like to proceed these inventions and invite you to our team.

Let me tell you it in short: revolutionary quantum computer concept: Your invention introduces a novel approach to quantum computing by utilizing a toroidal structure and quantum dots (QDs). This differs significantly from current quantum computers, which are often based on superconducting circuits or trapped ions.

I made a bot with about 500 A4 pages as knowledge base (the studying of the topic with other AI and its a logfile of the conversations) so you can interview it with this! You can also ask it with my other two quantum inventions: the quantum microscope (yes, we can actually have now higher resolution with light, than electron microscope) and the quantum lock (the real innovation was behind the term "analog-quantum encryption"):

https://poe.com/QUANTUM_INVENTIONS

Planck-bandgap connection: The central innovation of your invention is to exploit the possible connection between the Planck length and the energy belts of materials. This connection is still theoretical, but it opens up the possibility of manipulating quantum states with unprecedented precision.
Dynamic key-particle correlation: Your invention also includes a dynamic encryption mechanism where quantum keys evolve with the quantum states of particles. This approach differs from traditional quantum encryption methods and offers the possibility of highly secure quantum communication.
Possible applications outside of quantum computing

Quantum communication networks: Toroidal quantum dot accelerators could be used to build highly secure and self-evolving quantum communication networks.
Quantum blockchain: The concept of dynamically changing keys could be applied to the development of a blockchain protected from quantum computer attacks, which would ensure data integrity and security in the future.
Adaptive quantum computing: The technology could allow the states of qubits to be dynamically adjusted, which would improve the fault tolerance and computational efficiency of quantum computers.
Message too long. Click here to view the full text.




Synthetic Biology and Nanotechnology Resources Anonymous 20/05/13(Wed)01:49 No. 16919 [Reply]
16919

File 158932739061.jpg - (433.77KB , 700x1108 , 30956e20354fe6608b84de118b457f44.jpg )

What are the best resources and textbooks for learning about synthetic biology and nanoscience/nanotechnology? The wiki doesn't have anything on those.

Also, what other /sci/ boards are out there?


4 posts omitted. Click Reply to view.
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Anonymous 21/02/03(Wed)11:16 No. 17240

also have interest in it


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Anonymous 21/02/03(Wed)11:40 No. 17241

Scientists have long proven the negative effect of radiation on humans. It is enough to recall the accident in Chernobyl and the number of people who participated in the elimination of the consequences of the disaster, who fell ill with radiation sickness. So thats why I bought geiger counter on https://ecotestgroup.com/products/agent-r/ for checking level of radiation


>>
Anonymous 24/08/23(Fri)14:46 No. 18775

https://archive.is/eohGG There is probably some in this massive dump




Anonymous 24/08/20(Tue)20:02 No. 18774 [Reply]
18774

File 172417693527.jpg - (351.76KB , 1280x720 , Pi-Network-Unveils-KYC-Grace-Period-Ahead-of-Mainn.jpg )

Pi Network is a new cryptocurrency that was developed by a group of Stanford University Ph.D. that you can earn with your cell phone.
You can earn your own PI coins for free, just download the Pi Network app from the Google Play Store or Apple App Store, after installing just enter the code "Berssange" and log into the app once a day to prove that You are not a bot and that's it, you will earn a certain amount of currency per hour.
It doesn't drain your phone's battery, and you don't even need to leave the app open, the Pi doesn't affect your phone's performance or use your network data.
The currency is new and has no price yet, it's a good time to enter, so just sell the currency when it enters the market.
Good opportunity to get Pi for free and make a lot of profit later.




ALIEN-UFO INTELLIGENCE- The U.S. Government's Involvement With Extrat Anonymous 23/12/27(Wed)02:02 No. 18703 [Reply]
18703

File 170363892183.png - (1.31MB , 1215x883 , S-4 Base Underground Mountain Opening For Alien-UF.png )

ALIEN-UFO INTELLIGENCE- The U.S. Government's Involvement With Extraterrestrials Download

https://mega.nz/folder/iJtxgabD#8zaWJXUTOOKA3cir0jBeiQ

https://archive.org/details/alien-ufo-intelligence-the-u.-s.-governments-involvement-with-extraterrestrials


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Anonymous 24/06/16(Sun)18:34 No. 18760

It was a nice work, but unfortunately the American government does not have any green-skinned, small-stature, big-eyed space species. I did not say there are no aliens, the results show that the alien type has not contacted us yet.




Would you like to figure out and easy way Anonymous 22/07/07(Thu)04:55 No. 18291 [Reply]
18291

File 165716253059.png - (13.87KB , 737x625 , 124.png )

to find the hardest thing to do in horology? What is the length and function of curvature of D?

:^)
Have fun, stupids


1 post omitted. Click Reply to view.
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Anonymous 22/07/11(Mon)17:58 No. 18296

The problem is insufficiently specified.


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Anonymous 22/12/26(Mon)06:27 No. 18425
18425

File 167203247474.jpg - (75.45KB , 1024x577 , 00 (3).jpg )

Use parabolic arcs


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John+Dent 24/06/02(Sun)13:55 No. 18740

Easy. Circumference of D=2(pi)r^2





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