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weird_useron Double-mirror illusion

I think you misunderstood this. This is not an illusion of objects from different angles, but an unintuitive transformation of geometry.

weird_useron Double-mirror illusion

Better URL:

https://journalofillusion.net/index.php/joi/article/view/983...

weird_useron New paper argues that the Universe began with two Big Bangs

> Galaxies, like people, are made of ordinary matter, and we can use the laws of physics to predict how they should move.

weird_useron Bees can learn, remember, think and make decisions

Pictures:

https://en.wikipedia.org/wiki/Effect_of_psychoactive_drugs_o...

weird_useron Let's make a Teeny Tiny compiler (2020)

It's still a useful generic exercise for beginners. Although I recommend starting with a simpler syntax like sexpr, you can get more practice with less code.

For a deeper exercise, I recommend compiling to machine code instead of stopping at bytecode [1]; you can learn assembly along the way, which is more satisfying than compiling to C.

[1]: https://github.com/byo-books/pretty_laughable_lang/

weird_useron Open source Background Remover: Remove Background from images and video using AI

Fun fact: The demo image is an example of the hand-in-waistcoat gesture[1].

[1] https://en.wikipedia.org/wiki/Hand-in-waistcoat

weird_useron Ever-expanding animation of the life of the 796th floor of a space station

What does the device in the lower right corner do? Age reversal?

weird_useron Building a second income stream by writing a book

Interesting! I wonder how big their read base is. Other commenters mentioned sales numbers around 2000, you must have made a far larger sale to compensate for the lower loyalty.

weird_useron Building a second income stream by writing a book

How hard can it be to turn a book into a course instead? I guess it's also hard because courses and books are consumed by different audiences.

weird_useron Building a second income stream by writing a book

While writing a book is not particularly profitable, the author could probably earn more by self-publishing rather than working with a publisher, since the author has done most of the marketing anyway.

weird_useron Advanced Compilers: Self-Guided Online Course

Compiling to machine code is not that hard once you get to the IR or bytecode phase, check out this toy compiler:

https://github.com/byo-books/pretty_laughable_lang/

weird_useron No CSS Club

1. No line spacing. 2. No text width limit.

Top 2 reasons why CSS-less pages are less readable.

weird_useron Tell HN: Use less pinky finger when programming

Remap `CapsLock + key` to symbols, arrows, and delete/backspace keys.

I didn't realize how awkwardly the buttons are positioned until I started adding a "layer" to my keymap.

Here is the layer I use:

https://build-your-own.org/blog/20230310_coding_kbd/

weird_useron The 24 Hour “Do Nothing” Challenge

Wasting time doing nothing is not necessarily a bad idea; one can often waste more time doing _something_.

weird_useron The 24 Hour “Do Nothing” Challenge

This is very easy before the Internet became a commodity. It's still easy for me today.

weird_useron All of NoSQL is because of this

Are join algorithms like this really the alternative to compound indexes? I understand that they reduce the memory required for joins, but the amount of data involved in a join is the same.

weird_useron Io_uring and Networking in 2023 [pdf]

The web pages are the full version. It's a condensed book.

weird_useron High-level assembly language from ForwardCom

The author's homepage[1] links to a few interesting topics too.

[1] https://www.agner.org/

weird_useron Io_uring and Networking in 2023 [pdf]

I think you need to learn basics like the event loop first before jumping into io_uring.

You might be interested in my book[1] which teaches network programming.

[1] https://build-your-own.org/redis/

weird_useron Show HN: PySdfScad,an openSCAD interpretor using signed-distance-functions

Cool! How fast is it? I used openSCAD before and it was slow to render.

weird_useron Ask HN: I just want to have fun programming again

I'm writing a book[1] with a variety of coding projects.

Programming is not always about building the app foo with the language bar. You can have fun by recreating and understanding how existing stuff works.

[1] https://build-your-own.org/b2a/

weird_useron World Record for Time to Climb to a Height of 30000 Meters

I'm intrigued by the Immelmann turn, can anyone ELI25 why it is needed?

weird_useron Ask HN: Should Hacker News add Sort-By-Controversial comment sorting?

Maybe you should read less HN if you are constantly seeking interesting stuff - there is never an end to internet surfing.

Also, you might like a curated version of HN: https://hn.build-your-own.org/

weird_useron The “Build Your Own Redis” Book Is Completed

Added a cropped PDF with a larger font size. Hope that will work.

weird_useron The “Build Your Own Redis” Book Is Completed

I have updated the EPUB on Gumroad. Would you mind checking it again? I might add a PDF version with bigger a font size if it's not working.

weird_useron The “Build Your Own Redis” Book Is Completed

Sorry to hear that. I don't have a Kobo so I can not troubleshoot this. Would a small-sized PDF be readable on your device?

weird_useron Show HN: The “Build Your Own Redis” Book Is Completed

Hi. Thanks for your feedback, I'll tweak the font later.

This is my first book and I'm considering doing another book if everything goes well. You can subscribe to get notified on future books.

weird_useron Explore Wikipedia's New Look

For those who don't like the new skin. I have created a user CSS to make it more compact:

https://gist.github.com/kool-user/457cbf0100e075cc83977c1fe8...

weird_useron Ask HN: Techwise, how did TikTok get so good?

This is probably because the HN page doesn't contain the document date metadata. So google just picked a random date from that page.