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tralarpa

1,048 karma · joined April 12, 2018

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tralarpa··on After 50 years, The Magic Circle finally inducts Penn and Teller
Nice, I didn't know Teller writes package.json files.
tralarpa··on Paracetamol disrupts early embryogenesis by cell cycle inhibition
I have not found any study published after 2020 (the year when the French minister made the statement) that advises against ibuprofen for COVID-19. But I'm not a doctor, so I'd be interested to know your source.
tralarpa··on It’s not wrong that "\u{1F926}\u{1F3FC}\u200D\u2642\uFE0F".length == 7 (2019)
Fascinating and annoying problem, indeed. In Java, the correct way to iterate over the characters (Unicode scalar values) of a string is to use the IntStream provided by String::codePoints (since Java 8), but I bet 99.9999% of the existing code uses 16-bit chars.
tralarpa··on QUIC for the kernel
Your browser is using it when you watch a video on youtube (HTTP/3).
tralarpa··on Kaleidos – A portable nuclear microreactor that replaces diesel generators
Yes, that's crazy. They say up to 1 MW electric which would mean (33% efficiency) 2 MW of heat to get rid of with air cooling. Later they mention facility heating which sounds more realistic, I guess?
tralarpa··on July 5, 1687: When Newton explained why you don't float away
> ...of course?

No, it isn't. That sounds strange, right? But here is an explanation what eternauta3k probably meant: In modern physics, there is a kind of consensus that asking “why” has often been inappropriate or even misleading and should be therefore left to philosophers. The real questions are: Does our current model describe all observations? If not, can we find a model that does? And, even better, can that new model make predictions that we can verify?

tralarpa··on July 5, 1687: When Newton explained why you don't float away
> That's as darn good of an explanation of why we fall down as one could possibly give

Well, around two hundred years later they found out that it is not a good explanation (which of course in no way diminishes Newton's achievements).

tralarpa··on A Dictionary of the Language of Myst's D'ni
> Prior to PCs, games were mostly just hand-eye coordination checks

Not sure what you call a PC, but there are 17 years of problem-solving computer games (text adventures, click-and-point adventures, RPGs, real-time and round-based strategy games,...) before Myst.

tralarpa··on Linguists find proof of sweeping language pattern once deemed a 'hoax'
Why does the tool say that "cable" is the lexically most elaborated word in French?
tralarpa··on Building my own solar power system
What should the grid operators do with all that energy that comes in at noon on a beautiful sunny day?
tralarpa··on LLMs get lost in multi-turn conversation
Interesting that it works for you. I tried several times something similar with frames from a 5G network and it mixed fields from 4G and 5G in its answers (or even from non-cellular network protocols because they had similar features as the 5G protocol I was looking at). Occasionally, the explanation was completely invented or based on discussions of planned features for future versions.

I have really learned to mistrust and double check every single line those systems produce. Same for writing code. Everything they produce looks nice and reasonable on the surface but when you dig deaper it falls apart unless it's something very very basic.

tralarpa··on Why do electrons not fall into the nucleus?
For those who don't know Mills and his company: https://en.wikipedia.org/wiki/Brilliant_Light_Power
tralarpa··on Math for Computer Science and Machine Learning [pdf]
> firm foundation needed

Foundation to read this book or for a specific topic?

tralarpa··on Bra and KET: String Interpolation in AmigaDOS
> the parser for shell scripts, or sequence files as they're called in TRIPOS

I didn't know that was the official name. Hence the startup-sequence.

tralarpa··on Technical Mathematics (1954) [pdf]
Maybe this goes in the right direction:

https://tex.stackexchange.com/questions/352447/how-to-write-...

tralarpa··on Show HN: Time Portal – Get dropped into history, guess where you landed
[Spoiler] I guess it's this: https://madainproject.com/northern_stelae_park

Which is funny, because the monoliths in the AI video look more eroded than the real ones today.

This looked like a nice idea at first glance. At second glance, it's really bad because you have to assume that everything you see in these videos can be wrong or misleading.

tralarpa··on Why can't we remember our lives as babies or toddlers?
> The machinery constructing query vectors has updated its structure enough that its encoding of those query vectors is sufficiently dissimilar from the encoding of the stored memory vectors (which use the encoding from the last recall).

Wouldn't that result in very bizarre memories instead of no memories?

tralarpa··on Write Your Own Virtual Machine (2022)
That's what the nand2tetris course does, I think (I only looked at the first lessons)
tralarpa··on Silicon Valley Tea Party a.k.a. the great 1998 Linux revolt take II (1999)
> Afaik fastest CPU at the time was Alpha released in December at 333MHz

That would be rather 1996. Alphas were already at 500MHz in 1997, and (expensive) Pentium II were at 450MHz in 1998.

tralarpa··on Show HN: A portable hash map in C
My C is quite rusty, so apologies for stupid questions.

In the hm_put function, when you overwrite, why do you malloc and copy the key again, and what happens with the old key pointer and the old value pointer? (no free for the key and the memset zeros everything?)

tralarpa··on A common urban intersection in the Netherlands (2018)
Models based on Poisson distributions are the simplest type of queue from a mathematical point of view. Introductory courses rarely go beyond that.
tralarpa··on A common urban intersection in the Netherlands (2018)
> Makes me wonder how much traffic planning and distributed systems could learn from each other

I don't know any concrete example, but since road engineers have been using queueing theory, originally invented for telecommunication networks, for more than 70 years, I would be surprised if models and tools designed for one use case had not been reused for the other.

tralarpa··on Trump wins presidency for second time
Ossobuco, the Italien defender of (checking their comment history) Russia, the Cuban government, the Iranian government,... (probably something else but I stopped checking)
tralarpa··on The Incredible Machine (1968) [video]
So many techniques shown in the video: graphics cursor, toolbar, menubar, click&drag, rubberband
tralarpa··on A popular but wrong way to convert a string to uppercase or lowercase
The fact that the standard library works against you doesn't help (to_lower takes an int, but only kind of works (sometimes) correctly on unsigned char, and wchar_t is implicitly promoted to int).
tralarpa··on Japan's humble onigiri took over lunchtimes around the world
> Are they hard to make at home?

Not at all. You need the right type of rice (and a rice cooker helps). There are many options for the filling, some of which don't even require a trip to the Asian grocery store.

tralarpa··on Neo Geo Dev: Fixed Point Numbers
On the Amiga and Atari, based on the Motorial 68000 like the NeoGeo, all 3D games used fixed point arithmetic.

At that time, such games were written in assembler, and you had to be very careful to place the instructions for scaling and descaling in the right places, not only to get the final result in the right units (i.e., screen coordinates), but also in intermediate calculations to preserve precision.

tralarpa··on Alan Kay on Donald Knuth
> "unit tests" appeals to me only rarely

Give this man a node.js application with 100000 dependencies where an update from package version 34.2.4 to 34.2.5 breaks everything because the developers decided to change the order of parameters in one function just for fun.

tralarpa··on Memory Management Every Programmer Should Know
> Java doesn't let you directly ask for some reference type to go on the stack but does escape analysis to try really hard to put your Object memory on the stack for you anyway

Is that a new hotspot feature? I thought it can only do scalar replacement (avoiding object allocation and keeping the object fields in registers).

tralarpa··on Antarctic English
The cited scientific articles read as if some linguists are trying to make the thing bigger than it is. But okay, they have to make ends meet, too.
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