liuhenry

6 ms·

1.
How Language Models Understand Nullability(dmodel.ai)
9 points by liuhenry 2y ago|0 comments
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by liuhenry 2y ago
Lithos Carbon | Full-Stack Engineer, Data Scientist/Engineer, and Applied Statistician | Hybrid (SF Bay Area, Seattle) and US Remote | Full-time Hey everyone — we're a startup that's scaling a form of durable carbon dioxide r
3.
by liuhenry 2y ago
Lithos Carbon | Full-Stack Engineer, Data Scientist, and Applied Statistician | Hybrid (SF Bay Area, Seattle) | Full-time Hey everyone — we're a startup that's scaling a form of durable carbon dioxide removal called enhanced rock
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by liuhenry 3y ago
Lithos Carbon | Founding Full-Stack Engineer and Data Scientist | Hybrid (SF Bay Area, Seattle) and US Remote | Full-time Hey everyone — we're a startup that's scaling a form of durable carbon dioxide removal called enhanced rock
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Startup uses volcanic rock dust to capture carbon on farms(fastcompany.com)
5 points by liuhenry 4y ago|0 comments
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by liuhenry 4y ago
Which definition do you mean? SPX is a cap-weighted index, but that's very different from "50% of capital outperforms the index".
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by liuhenry 5y ago
I don’t think the parent response is correct, though, if by profit (colloquially) we go by earnings that could be distributed to shareholders. Sure, gross profit would not include either of those expenses. But operating profit would subtr
8.
by liuhenry 5y ago
> everyday materials usually obey the Pauli exclusion principle In the everyday case, this is pretty much always in reference to electrons (which are fermions). Even when we're talking about atoms or solids, the effects of the PEP
9.
by liuhenry 5y ago
The ELI15 explanation is that at these temperatures, quantum mechanical effects take over and the atoms themselves become indistinguishable from each other. They no longer have a definite position in space and experimentally act as matter w
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by liuhenry 5y ago
Right, quantum jumps as used here is actually a specific technical term. It seems like the parent comment takes it to be a lay analogy, but it’s from a formulation called quantum trajectory theory [1]. Rather, the result is about the electr
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by liuhenry 5y ago
I'm trying to understand the concern but most of my worry around "historical financial data" would be actual transaction-level information, not rough summary figures to estimate a financial plan. I just played around with the
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by liuhenry 6y ago
I grew up in the US and (unfortunately) this was the first time I'd heard of such a concept. I did some research and "prison furloughs" became a key political issue in the 1988 US presidential election [1]. The federal prison
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by liuhenry 6y ago
I understand what you're saying, but honest question: why is it helpful to add this caveat?
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by liuhenry 6y ago
It's ~£500 payments per month (which covers both interest and some of the principal). The total interest comes out to £1,473.
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by liuhenry 6y ago
I'm sympathetic to this point, but won't it continue to be a problem as long as airlines still allow pets? The DOT ruling cites an industry statistic that 784k pets and 751k ESAs were transported in 2017 [1]. I can certainly belie
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by liuhenry 6y ago
It's worth noting that the Department of Transportation final ruling devotes a section to economic impact [1], and estimates a ~$55M increase in fees paid by passengers traveling with ESAs to airlines. > The current policy amounts t
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by liuhenry 6y ago
Logically, the "surcharge for potential damage" should be a security deposit, or fines and penalties against specific behavior. You'd have the same issues with tenants that were excessively noisy, or held parties and spilled
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by liuhenry 6y ago
The risk to PayPal is that Visa/MC no longer allow PayPal to transact on their network if aggregate chargebacks exceed some percentage. I don’t know how the exact details iron out but this was a concern when I worked on a payments plat
19.
by liuhenry 6y ago
Fair - I don't own a car myself, but the US DOT reports 24.4 mpg in 2018 for cars, SUVs, vans, and light trucks shorter than 121 inches. (This is an estimate of vehicles on the road, not 2018 model year.) If we use a 2020 model year fo
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by liuhenry 6y ago
US Department of Transporation says the avg. American drives 13.5k miles per year. Using an average mpg of 21.5 mpg (if the average age of a car is 12 years), this comes to ~628 gallons of gas per year. EPA uses 33.7 kWh per gallon for ~21,
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by liuhenry 6y ago
Something I always find pretty mind-blowing is that a physical thin lens can also perform a Fourier transform. This (generally) only applies to coherent light, so it's not something we're used to everyday, but it forms the basis
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by liuhenry 6y ago
This doesn't quite get to ELI5 but hopefully is understandable to an HN audience (please feel free to correct if I've gotten anything incorrect): "Topological" and "magnetic" are two separate concepts (see belo
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by liuhenry 6y ago
You're both correct but talking about different situations. The original post is saying that some people may discover they've contributed too much to their IRA after doing the tax calculations (say, if they just contribute the max
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by liuhenry 7y ago
Full derivation: https://physicspages.com/pdf/Griffiths%20QM/Griffiths%20Prob...
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by liuhenry 7y ago
At least 10cm in any dimension (i.e. a 10cm diameter sphere, or a 10cm x 10cm x 10cm cube). https://docs.fcc.gov/public/attachments/FCC-19-81A1.pdf
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by liuhenry 7y ago
You've actually stumbled upon the central premise of this discovery. If you finely divide a magnet into tiny magnets and suspend the particles in a liquid, you get... a normal ferrofluid. It's magnetic in the presence of an extern
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by liuhenry 7y ago
In this case, Google makes the above content and a bunch of related materials intentionally public: https://rework.withgoogle.com/guides/
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by liuhenry 7y ago
I had this impression as well, but there's something else going on. If you run the numbers, at T=293, there's a negligible fraction above 5 km/s. The atmospheric loss models typically use an exosphere temperature of T=1000, b
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by liuhenry 8y ago
10 milliKelvin is the temperature range that allows the usage of commercial RF equipment in the ~5GHz range to control the qubits. The relationship between the two is essentially Energy = k_B * temp = h * freq, where k_B is the Boltzmann co
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by liuhenry 8y ago
It's a set of course notes from MIT 6.055 - "The Art of Approximation in Science and Engineering". They have been edited and updated into a book as well: https://ocw.mit.edu/courses/electrical-engineering

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