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Ask HN: Doing moral work as software engineer?

1•rk65536•3m ago•0 comments

China's chipmakers are cleverly innovating around America's limits

https://www.economist.com/science-and-technology/2025/10/22/chinas-chipmakers-are-cleverly-innova...
1•pseudolus•4m ago•1 comments

Redistributing Git with Nostr

https://fiatjaf.com/18ff5416.html
1•todsacerdoti•8m ago•0 comments

Claim-Check Pattern

https://learn.microsoft.com/en-us/azure/architecture/patterns/claim-check
1•teleforce•13m ago•0 comments

Two Black Holes Observed Circling Each Other

https://www.universetoday.com/articles/two-black-holes-observed-circling-each-other-for-the-first...
1•bikenaga•15m ago•1 comments

Meta lays off 600 from "bloated" AI unit

https://www.cnbc.com/2025/10/22/meta-layoffs-ai.html
1•holden_nelson•15m ago•0 comments

Power from Quantum Space via the Casimir Effect

https://www.casimirspace.com/tech
1•dillonshook•16m ago•0 comments

Battery Storage Boom Faces Its Biggest Test Yet

https://oilprice.com/Energy/Energy-General/Battery-Storage-Boom-Faces-Its-Biggest-Test-Yet.html
1•PaulHoule•18m ago•0 comments

Quad

https://ridealso.com/products/quad
1•prawn•21m ago•0 comments

Netflix Earnings Hit by Brazil Tax Blow

https://www.marketscreener.com/news/netflix-earnings-hit-by-brazil-tax-blow-ce7d5ddbda8bff2d
2•mgh2•24m ago•0 comments

NextSilicon reveals new processor chip in challenge to Intel, AMD

https://www.reuters.com/business/nextsilicon-reveals-new-processor-chip-challenge-intel-amd-2025-...
1•simojo•25m ago•0 comments

Apple confirms pulling controversial dating apps Tea and TeaOnHer from App Store

https://techcrunch.com/2025/10/22/apple-confirms-it-pulled-controversial-dating-apps-tea-and-teao...
2•haunter•26m ago•0 comments

Trump Team Plans IRS Overhaul to Enable Pursuit of Left-Leaning Groups

3•throw0101a•35m ago•2 comments

Best strategies to grow from 300 –> 1000 users?

https://opus.cafe/goal/jj/26
1•eastoeast•35m ago•1 comments

GM will ditch Apple CarPlay and Android Auto on all its cars, not just EVs

https://www.theverge.com/transportation/804562/gm-apple-carplay-android-auto-gas-cars-mary-barra
9•cwmartin•35m ago•6 comments

Vive la France long live the US

https://2lr.substack.com/p/vive-la-france-long-live-the-us
1•jdenquin•35m ago•0 comments

Writing an LLM from scratch, part 23 – fine-tuning for classification

https://www.gilesthomas.com/2025/10/llm-from-scratch-23-fine-tuning-classification
1•gpjt•39m ago•0 comments

Data Scientists and ML Engineers – How do you keep track of what you have tried?

1•arma97•40m ago•0 comments

I was once an AI true believer

https://old.reddit.com/r/ArtificialInteligence/comments/1odgfys/i_was_once_an_ai_true_believer_no...
4•mbesto•46m ago•0 comments

Extinction rates have slowed across many plant and animal groups, study shows

https://news.arizona.edu/news/extinction-rates-have-slowed-across-many-plant-and-animal-groups-st...
1•geox•46m ago•0 comments

Musk launches personal attack on NASA boss

https://news.sky.com/story/elon-musk-launches-personal-attack-on-nasa-boss-and-says-he-isnt-smart...
1•belter•47m ago•1 comments

DJI Removes Video Shot in National Parks After It Raises Eyebrows

https://petapixel.com/2025/10/21/dji-removes-video-shot-in-national-parks-after-it-raises-eyebrows/
2•josephcsible•48m ago•1 comments

VortexNet: Neural network based on fluid dynamics

https://github.com/samim23/vortexnet
5•vegax87•51m ago•0 comments

The Path to Digital Sovereignty: Why an Open Ecosystem Is the Key for Europe

https://www.redhat.com/en/blog/path-digital-sovereignty-why-open-ecosystem-key-europe
6•billybuckwheat•53m ago•0 comments

Hawala: The Working Man's Bitcoin (2014)

https://priceonomics.com/hawala-the-working-mans-bitcoin/
2•rzk•54m ago•0 comments

The Great Reckoning

https://www.theideasletter.org/essay/the-great-reckoning/
1•latentnumber•55m ago•0 comments

Direct Sales and Direct Anti-Piracy Action Underpin Japan's Plan for Growth

https://torrentfreak.com/direct-sales-direct-anti-piracy-action-underpin-japans-plan-for-explosiv...
1•mikhael•1h ago•0 comments

Simplify Your Code: Functional Core, Imperative Shell

https://testing.googleblog.com/2025/10/simplify-your-code-functional-core.html
2•birdculture•1h ago•0 comments

Emily Riehl is rewriting the foundations of higher category theory (2021)

https://www.quantamagazine.org/emily-riehl-conducts-the-mathematical-orchestra-from-the-middle-20...
1•perihelions•1h ago•0 comments

Show HN: 100-Line LLM Framework

https://github.com/The-Pocket/PocketFlow
1•zh2408•1h ago•0 comments
Open in hackernews

YASA beats own power density record pushing electric motor to 59kW/kg benchmark

https://yasa.com/news/yasa-smashes-own-unofficial-power-density-world-record-pushing-state-of-the-art-electric-motor-to-staggering-new-59kw-kg-benchmark/
16•breve•2h ago

Comments

pinkmuffinere•28m ago
> The motor’s performance on the dyno has exceeded even our most optimistic simulations

Not to take away from the exciting achievement, but I always found comments like this kindof unusual. Really, it exceeded even your _most optimistic_ simulations? If the high end of your simulated performance was below what you actually measured, I am worried that your simulation is seriously neglecting something. I used to work in decent depth with three phase bldc motors, so I feel I can say with some authority that these things _can_ be simulated, and while real world data is hard to exactly predict, getting something outside of the predicted range would generally be interpreted as a sign that your simulation isn't so good. But maybe this is just marketing-speak, and their simulations are actually totally fine.

dmitrygr•19m ago
+1

I suspect that the marketing guy's eyes glazed over when the engineers tried to explain confidence intervals to him. He demanded a simple figure. They gave him the median projected value to make him go away. The tested value was above median projection and thus you get this wordspew.

abdullahkhalids•26m ago
Is there a chart or table somewhere for this benchmark, so one can compare the performance of many different available motors?
Animats•23m ago
"short-term peak rating"

Short-term peak ratings for electric motors are always huge. You can put in higher voltages up to arc-over. More interesting is sustained output. 1 minute, 10 minutes, 1 hour, continuous duty. That's all about how well it can get rid of heat.

That's why electric motors have a "temperature rise" number on the data plate. That's the steady-state temperature increase from a cold start when run continuously at rated power.

pinkmuffinere•17m ago
To be fair, in some applications the short-term peak rating is an important metric in its own right. For example, robotics applications frequently will have high peak load, but much lower steady state load. Eg, a jumping robot will briefly need a ton of force when pushing against the ground and when landing, but in the middle there it won't be applying such high loads. Likewise for bringing appendages up to speed, or accelerating a car to some speed, etc.

edit: After looking at your account, I see you are John Nagle, and I worry that I am confidently-incorrect here, lol. I'll leave the comment as-is because it is still my genuine belief, but feel free to correct me if I'm totally off!

imoverclocked•12m ago
In the low-tens of kg, I have to wonder if we will just start mass-producing a single motor and just change the driving electronics for different vehicles/applications. Eg: De-rating this motor via driving electronics for aviation to only produce 200hp would be interesting for experimental designs.