251–260 of 296 posts
This is inspiring, and let's look at why so many of us have the impulse to figure out what the flaw or missing part of the story is. For me, it's because I hadn't done something so cool at 17. That makes me think, huh, I wonder if I'm not a "natural born engineer". I start going through my life story so far and beating myself up for playing too many video games, or not going deep enough on my interests. Then I start…
BEVs like Teslas already have a rare-earth-free induction motor in them. They use an additional rare earth motor for efficiency, which in the Model S and X gets them ten percent greater range. The way this article conveniently ignores that fact leads me to believe there's no chance of the modified synchronous reluctance motor exceeding the efficiency of the induction motor and therefore will have no impact on the ele…
This is because you are 5+ years out of date with the state of the industry. All of the latest cars -including those from tesla (3 and Y)- are using SRMs, most with neodymium magnets. Note that these are NOT brushless PM motors, and the magnets are used for a different purpose. SRMs have the highest peak efficiency of any common motor design and are cheaper than brushless PM motors.
The only reasons not to use SRMs are the slightly lower torque efficiency and the difficulty of design... both of which this guy did.
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I think this is the right angle to take. Unlike a lot of breathless "engineering breakthrough" stories, this piece, as well as young Mr. Sansone himself, readily acknowledge that this is a work in progress and may not pan out. Even if it doesn't, what an incredible achievement for a high-schooler – and just imagine the great contributions to the field this kid is poised to make in the coming decades.
> and just imagine the great contributions to the field this kid is poised to make in the coming decades Well let's curb the expectations for now, it can be quite damaging for a kid be held forever to an potentially unrealistic standard just because they did something great once. I mean sure for the occasional genius it turns out fine because they live up to it, but for the rest it's a self hate and imposter syndrome…
BEVs like Teslas already have a rare-earth-free induction motor in them. They use an additional rare earth motor for efficiency, which in the Model S and X gets them ten percent greater range. The way this article conveniently ignores that fact leads me to believe there's no chance of the modified synchronous reluctance motor exceeding the efficiency of the induction motor and therefore will have no impact on the ele…
> The way this article conveniently ignores that fact leads me to believe there's no chance of the modified synchronous reluctance motor exceeding the efficiency of the induction motor and therefore will have no impact on the electric car industry. This is because you are 5+ years out of date with the state of the industry. All of the latest cars -including those from tesla (3 and Y)- are using SRMs, most with neodym…
Like, if the economics shift enough, many major players in the space could change their designs within 5-10 years, couldn't they?
Hats off to him for this amazing achievement. It’s a path-making achievement and wish him every success.
Earlier quoted context omitted.
I would much rather live in a world where people question biased media narratives and we risk hurting someone's feelings than the other way around. If this kid can't handle a little bit of criticism, he won't be long for the engineering discipline.
That's a false dichotomy > If this kid can't handle a little bit of criticism I do expect adults - over 25 - to take the rough with the smooth. But children are not adults. I think you're assuming your own competence at pedagogy. I would want to shield children from you until they've developed the resilience you demand from them. Also, the emotional tone - sheesh
He's 17 years old, so he's not a full adult. But classing him as a child, in the same category as 6 year olds, seems further from the truth than calling him an adult. 17 years old is old enough to join the army, today, in numerous developed first world nations like New Zealand, Norway, and with parental consent, Germany and America.
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> The way this article conveniently ignores that fact leads me to believe there's no chance of the modified synchronous reluctance motor exceeding the efficiency of the induction motor and therefore will have no impact on the electric car industry. This is because you are 5+ years out of date with the state of the industry. All of the latest cars -including those from tesla (3 and Y)- are using SRMs, most with neodym…
I've always been a bit baffled by the ongoing panic around rare earth magnet shortages when induction motors have always been there as an only-slightly-worse alternative, waiting in the wings. Like, if the economics shift enough, many major players in the space could change their designs within 5-10 years, couldn't they?
SRMs had a high barrier to entry and benefitted strongly from better characterization and new electronics (SiC). Now that they're hear there isn't much point in going back to induction motors, unless copper becomes drastically cheaper.
I will also point out that neodymium is the most widespread and second most common REE, and is in fact unusually less common in China. Mines in the US are closed because of the capital and labor costs, not availability. Neodymium is >10x more common than most REEs.
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That are important to yourself, or to others?
This is the key, most people don't care about my "accomplishments".
If you are both accomplished and have an open mind your opinion can be valuable if constructive but in the end there is only one opinion that counts.
Also, it is entirely fine to try to do something that will take a million attempts like yours to maybe perhaps get it done poorly.
Hero's engine is just fine. We didn't need more from him. It was enough. It took a while for anyone to truly get it and their steam engine and many after it were useless pieces of crap - which was good enough. We didn't need more from them.
x86 is a piece of crap too!
Earlier quoted context omitted.
I think this is the right angle to take. Unlike a lot of breathless "engineering breakthrough" stories, this piece, as well as young Mr. Sansone himself, readily acknowledge that this is a work in progress and may not pan out. Even if it doesn't, what an incredible achievement for a high-schooler – and just imagine the great contributions to the field this kid is poised to make in the coming decades.
> and just imagine the great contributions to the field this kid is poised to make in the coming decades Well let's curb the expectations for now, it can be quite damaging for a kid be held forever to an potentially unrealistic standard just because they did something great once. I mean sure for the occasional genius it turns out fine because they live up to it, but for the rest it's a self hate and imposter syndrome…