Interesting findings on the internet

mnementh · Post by **mnementh** » Tue Jul 11, 2023 12:49 pm

And now for an opposing fanboi nerdgasm viewpoint, we have this shameless propaganda article from the oatmeal:

https://theoatmeal.com/comics/tesla_model_s

mnem
mnem would totes fuck a Tesla. Just lookit that shit-eating-grin.

(then I would fleaBay a Tesla full of genuine, certified dwagon-jizz and actually retire)

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mnementh · Post by **mnementh** » Tue Jul 11, 2023 1:17 pm

Which, disturbingly, leads us to this; something of actual value that Musk was involved in, evidently:

https://theoatmeal.com/comics/tesla_model_s2

So far I have not been able to confirm whether Musk actually followed through (okay, I spent all of ~5 minutes Gurrgling and all I found were the free publicity... err, news articles at the time he made the pledge), but I'm all for the whole idea of turning WardenClyffe into a museum (part of my own personal "local history"), and it does appear that they've at least gotten to the point of being able to offer tours as a fundraising mechanism.

https://teslasciencecenter.org/

mnem
Inman's article aboot Nikola Tesla is actually pretty well-balanced (for shameless fanboi-ism) and does rightly place Edison as one of the greatest douche-you-name-its of the modern age:

https://theoatmeal.com/comics/tesla

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Specmaster · Post by **Specmaster** » Tue Jul 11, 2023 2:05 pm

How does 120HP from a small 500cc engine sound? Too good to be true, it is claimed to a 1 stroke engine, I don't that, but I see a 2 stroke configuration. It uses multi pistons arranged like those on a Napier Deltic engine.

https://www.youtube.com/watch?v=9I0_3qFmPUM&t=286s

https://www.youtube.com/watch?v=-vV-YaKsIGk

mnementh · Post by **mnementh** » Tue Jul 11, 2023 3:33 pm

Yeah, this is hardly a new idea; we've been driving around with AC compressors using similar engineering for decades.

The inherent problems of using a cam mechanism to deliver primary power from an ICE have plagued all similar engines that came before, and will plague this one as well.

The short version is that performance is not earth-shatteringly superior to various small-to-midsize turbine engines that have been tested over the last few decades, and all the same engineering problems of needing variable-speed from a standstill but the motor running at high RPM and narrow powerband apply.

Here, scope these guys out (they're actually based a few minutes away from me): https://www.liquidpiston.com/

TL/DR version: Just because you turned the stator and rotor inside-out, doesn't mean it's not a fucking Wankel.

mnem

microturbines.JPG

mnementh · Post by **mnementh** » Tue Jul 11, 2023 3:46 pm

Oh, and random note: Nikola Tesla Day is July 10th, and we all missed it.

Way to go, us.

mnem

BU508A · Post by **BU508A** » Tue Jul 11, 2023 4:29 pm

T-Shirt for you-know-who-I'm-meaning

AVGresponding · Post by **AVGresponding** » Tue Jul 11, 2023 5:11 pm

To add a little mud to the water, "roll-out" is the 0-6 feet time, and they (all car manufacturers) measure from after this, rather than 0. They also usually do it on a prepped surface, with optimised tyres. It makes a surprisingly significant difference. Engineering Explained has done some videos on this.

https://www.youtube.com/watch?v=i7yigpPSu_o
https://www.youtube.com/watch?v=HAmv2IO9row&t=83s
https://www.youtube.com/watch?v=9LTq45o0ttQ

AVGresponding · Post by **AVGresponding** » Tue Jul 11, 2023 5:21 pm

That "1-stroke" engine is quite, quite different to a Napier-Deltic engine. That had 3 longitudinal crankshafts with the pistons arranged in triangular radial sets of six, this has effectively no crankshaft and the pistons are axial.

The engine only being good at one rpm isn't a real problem; this is ideal to run a generator for an electric motor.

The video is quite interesting, the reason they chose to call it a 1-stroke, for example, and the fact that "it has no turbocharger"; yes, but it has a fucking supercharger, so it's still FI -facepalm-

Specmaster · Post by **Specmaster** » Tue Jul 11, 2023 6:18 pm

As I see it, all of these engines, including the one just announced by Ford are interesting steps forward, I'm not at all sure that any of them will radically change the world, but it does show that people are looking at using the earths natural resources in a far more economical fashion which has to be good.

Hopefully something will emerge from all of these different approaches will appear and be the dominant force for the future. It makes perfect sense to restrict the engines size in terms its cubic capacity and extract the most energy possible so we reduce overall consumption to a far more manageable level with far less emissions. The Liquid Pistons engine is really essentially a Wankel engine but they have replaced the sealing tips at the at the tips of the rotor with basically a far higher standard of sealing between the stator and the rotor at the 6 points where the combustion chambers are formed and developed better sealing a the sides of the rotor. This will, I think suffer the same issues as the Wankel did, chronic wear at these critical points, time will tell.

With the Inn engine, the thing is fundamentally flawed in as much as it is a 2 stroke engine really and it has that cam system at each end which will I'm sure long term be its Achilles heel. Why I likened it to the Napier Deltic engines was because of its use of 2 pistons per cylinder, giving rise to two power strokes per firing. The Deltic engine suffered because it had the complicated system of the crankshafts, complicated because it had to have of them rotating in the opposite direction to the other 2, which then had to have its output converted back to the same rotation in order to harness the power from it. It was however at its time very ingenuous and provided some relatively compact and powerful engines.

https://www.youtube.com/watch?v=fubsmDQ4xj4&t=9s

mnementh · Post by **mnementh** » Wed Jul 12, 2023 2:22 am

BU508A wrote: ↑Tue Jul 11, 2023 4:29 pm T-Shirt for you-know-who-I'm-meaning

No, no, no that's not me... that's my toaster.

mnementh
I just want to set fire to the fuckwits, shitheads and douchenuggets running this shit-circus...

BU508A · Post by **BU508A** » Wed Jul 12, 2023 4:33 am

mnementh wrote: ↑Tue Jul 11, 2023 12:12 pm Just a motorhead thing... 60MPH is almost exactly the same as 100KPH. Nobody cares aboot the minute difference.

I just wanted to be nice to the imperial fanbois.

Specmaster · Post by **Specmaster** » Wed Jul 12, 2023 8:13 am

One thing for sure, the activity is a good result, and that is with the forth coming pending transition to EV's, there has never been that much of concerted effort to really further the ICE, but there is now loads of development work being done with simply loads of car makers, and other vehicle makers and even independent companies all coming up with clever ideas and claiming that there new engines are going to save the world and kill the EV so it is possible that a real breakthrough could be on the horizon.

One thing is however certain, and that is that EV, while making our the air that we breathe cleaner and safer, it is really just moving the problem to the areas where the material's are being mined, leaving huge areas heavily toxic for years to come and also harming the people doing the mining as they are being exploited. even children and it uses masses of water, that could and should be used for farming and drinking purposes. So we would be creating two ticking time bombs, the mining activity and the oil industry, as the latter is never going to be defunct as we would still need oil for lubrication and for making plastics etc.

MED6753 · Post by **MED6753** » Wed Jul 12, 2023 11:18 am

I wanna see an EV do this.

https://www.youtube.com/watch?v=bv01njeelXA

mnementh · Post by **mnementh** » Wed Jul 12, 2023 11:52 am

Why? After you've done it a few times it's boring AF...

mnem
"visceral" gets old quick.

mnementh · Post by **mnementh** » Wed Jul 12, 2023 12:02 pm

Specmaster wrote: ↑Wed Jul 12, 2023 8:13 am One thing for sure, the activity is a good result, and that is with the forth coming pending transition to EV's, there has never been that much of concerted effort to really further the ICE, but there is now loads of development work being done with simply loads of car makers, and other vehicle makers and even independent companies all coming up with clever ideas and claiming that there new engines are going to save the world and kill the EV so it is possible that a real breakthrough could be on the horizon.

One thing is however certain, and that is that EV, while making our the air that we breathe cleaner and safer, it is really just moving the problem to the areas where the material's are being mined, leaving huge areas heavily toxic for years to come and also harming the people doing the mining as they are being exploited. even children and it uses masses of water, that could and should be used for farming and drinking purposes. So we would be creating two ticking time bombs, the mining activity and the oil industry, as the latter is never going to be defunct as we would still need oil for lubrication and for making plastics etc.

With these engines, I'm really thinking more like "investment scam-a-ganza" rather than anything that will in any way materially change the world.

Same-old, same-old... and still, any technology that perpetuates the "burning shit for our energy" paradigm is just another micro-step off the cliff.

Yes, as we do them now, EVs are also pretty evil. That really still is ultimately due to the fact that big oil owns the product that backs the economies of the entire developed world. It is the base upon which all our currency is ultimately valued. We need to move towards zero personal vehicles, almost all travel done by mass transit, and all powered by means that don't involve rabid oxidation.

EVs for everything are the way this has to happen; it really doesn't matter how inconvenient it is at this point. We've deliberated and masturbated and procrastinated to the point where we are one foot on the edge of the cliff and the other hovering over empty air.

mnem
rabid... rapid...? ehhh, fukkitt; fits both ways...

Specmaster · Post by **Specmaster** » Wed Jul 12, 2023 12:15 pm

MED6753 wrote: ↑Wed Jul 12, 2023 11:18 am I wanna see an EV do this.

https://www.youtube.com/watch?v=bv01njeelXA

Haha I expect that there is someone right now building an EV monster truck, although I have to be honest and ask the question why would anyone want to either do this shit or pay money to see it, its as interesting as watching paint dry.

mnementh · Post by **mnementh** » Wed Jul 12, 2023 12:19 pm

Google is your friend. Done a decade ago.

mnem
Of course, Bob Chandler had a hand innit...

Specmaster · Post by **Specmaster** » Wed Jul 12, 2023 12:20 pm

Hmm, I don't suppose events like these and and the wild fires in Canada and the huge number of forests being chopped down are doing much to help to either.

https://www.youtube.com/watch?v=Lu7IWWMy5U4

mnementh · Post by **mnementh** » Wed Jul 12, 2023 12:32 pm

Oh, now you're taking the thread towards polly-ticks and conflicting ideologies. No, thank you.

mnem

this message approved by the WESAYSO Corporation.

MED6753 · Post by **MED6753** » Wed Jul 12, 2023 1:23 pm

mnementh wrote: ↑Wed Jul 12, 2023 12:19 pm

Google is your friend. Done a decade ago.

mnem
Of course, Bob Chandler had a hand innit...

That is freaking lame.

Cerebus · Post by **Cerebus** » Wed Jul 12, 2023 1:31 pm

MED6753 wrote: ↑Wed Jul 12, 2023 11:18 am I wanna see an EV do this.

https://www.youtube.com/watch?v=bv01njeelXA

I don't think this one would have any problems, apart from possibly missing and letting them slip though between its wheels. (Diesel-electric EV, but an EV nevertheless.)

Specmaster · Post by **Specmaster** » Wed Jul 12, 2023 2:56 pm

Diesel-electric EV, that would make it make more of a hybrid surely, although I suppose the diesel engine cannot directly drive the truck?

Cerebus · Post by **Cerebus** » Wed Jul 12, 2023 4:46 pm

Specmaster wrote: ↑Wed Jul 12, 2023 2:56 pm Diesel-electric EV, that would make it make more of a hybrid surely, although I suppose the diesel engine cannot directly drive the truck?

Same as the trains of the same nomenclature: diesel engine -> generator -> control system -> motors. Except in the case of the dumper truck from Brobdingnag it's one motor per wheel hub, plus ones for steering, tipping etc. So if you could find big enough batteries you could in theory make a fully fledged EV in the more conventional sense out of it.

AVGresponding · Post by **AVGresponding** » Wed Jul 12, 2023 6:32 pm

Given that the load capacity of these things is generally in the range of several hundred tonnes, I expect fitting a big enough battery would be no problem on that score. Don't imagine it'd be cheap though...

mnementh · Post by **mnementh** » Wed Jul 12, 2023 8:14 pm

https://www.axios.com/2023/07/11/anthro ... poch-earth

mnem

you are here: ------------------------------------------------------------^

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Test Equipment Anonymous

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