Hacker News: jhncls

Microplastics that accumulate in the body may 'clog up' immune cells

jhncls — Sat, 14 Mar 2026 00:30:00 +0000

Article URL: https://www.livescience.com/health/microplastics-that-accumulate-in-the-body-may-clog-up-immune-cells

Comments URL: https://news.ycombinator.com/item?id=47371924

Points: 3

# Comments: 0

Astrolabe

jhncls — Wed, 18 Feb 2026 22:40:40 +0000

Article URL: https://en.wikipedia.org/wiki/Astrolabe

Comments URL: https://news.ycombinator.com/item?id=47067432

Points: 3

# Comments: 0

New comment by jhncls in "Cistercian Numbers"

jhncls — Wed, 18 Feb 2026 22:40:14 +0000

In a Numberphile video [0], Alex Bellos also uses a triangle for 5.

[0]: https://www.youtube.com/watch?v=9p55Qgt7Ciw

New 'physics shortcut' lets laptops tackle quantum problems

jhncls — Fri, 05 Dec 2025 21:41:49 +0000

Article URL: https://www.livescience.com/technology/computing/new-physics-shortcut-lets-laptops-tackle-quantum-problems-once-reserved-for-supercomputers-and-ai

Comments URL: https://news.ycombinator.com/item?id=46167765

Points: 4

# Comments: 0

New comment by jhncls in "My Favorite Math Problem"

jhncls — Fri, 21 Nov 2025 23:31:54 +0000

ab = 37; a+b = 18; 1/a + 1/b = b/ab + a/ab = (a+b)/ab = 18/37

Beyond Vibe Coding – A practical guide to AI-assisted development

jhncls — Wed, 12 Nov 2025 15:18:33 +0000

Article URL: https://beyond.addy.ie/

Comments URL: https://news.ycombinator.com/item?id=45901261

Points: 1

# Comments: 0

Discussing Beyond Vibe Coding by Addy Osmani; Embracing AI as a Senior Engineer [video]

jhncls — Tue, 11 Nov 2025 15:41:14 +0000

Article URL: https://www.youtube.com/watch?v=yt3gjtREyHw

Comments URL: https://news.ycombinator.com/item?id=45888576

Points: 1

# Comments: 0

Amazon says it didn't cut people because of money. But because of 'culture'

jhncls — Fri, 31 Oct 2025 16:40:14 +0000

Article URL: https://www.cnn.com/2025/10/30/tech/amazon-layoffs-andy-jassy-ai-culture

Comments URL: https://news.ycombinator.com/item?id=45773985

Points: 87

# Comments: 122

Rapa Nui's Famous Moai Statues May Have 'Walked' into Place

jhncls — Sun, 19 Oct 2025 17:55:19 +0000

Article URL: https://www.sciencealert.com/rapa-nuis-famous-moai-statues-really-may-have-walked-into-place

Comments URL: https://news.ycombinator.com/item?id=45636298

Points: 4

# Comments: 0

How the 'end of history' illusion shapes your life choices

jhncls — Wed, 14 May 2025 18:08:48 +0000

Article URL: https://www.bbc.com/future/article/20230619-how-the-end-of-history-illusion-shapes-your-life-choices

Comments URL: https://news.ycombinator.com/item?id=43987508

Points: 3

# Comments: 0

End-of-History Illusion

jhncls — Sun, 20 Apr 2025 22:54:11 +0000

Article URL: https://en.wikipedia.org/wiki/End-of-history_illusion

Comments URL: https://news.ycombinator.com/item?id=43747135

Points: 8

# Comments: 0

Phenakistiscope

jhncls — Sat, 08 Mar 2025 15:49:47 +0000

Article URL: https://en.wikipedia.org/wiki/Phenakistiscope

Comments URL: https://news.ycombinator.com/item?id=43301096

Points: 9

# Comments: 0

New comment by jhncls in "Donald Knuth's 2024 Christmas Lecture: Strong and Weak Components [video]"

jhncls — Fri, 07 Feb 2025 13:07:40 +0000

Donald's novel "Surreal Numbers" was written during one week of a long stay in Norway [0]. So, maybe there he got his admiration for traditional Sami clothing.

[0]: https://youtu.be/jB0aeePskBg

New comment by jhncls in "Relax while watching bouncing particles making connections when they get closer"

jhncls — Thu, 09 Jan 2025 18:42:31 +0000

A "wright of passage", a "craftsperson of passage", someone who facilitates or creates transitions -- like a metaphorical bridge-builder

New comment by jhncls in "Nokia 5110 – Back from the Dead (2022)"

jhncls — Mon, 16 Dec 2024 15:19:16 +0000

In French, the bear is killed. In Spanish, he is chased. In Dutch, he is shot. The Spanish look adventurous, and the French straight-forward.

New comment by jhncls in "A Mathematician in a School of Art"

jhncls — Wed, 13 Nov 2024 15:43:52 +0000

A fellow mathematical sculptor is Carlo Séquin [0]. Also Jos Leys' mathematical imagination is an explorative wonderland [1].

[0]: https://people.eecs.berkeley.edu/~sequin/ [1]: https://www.josleys.com

Five or ten new proofs of the Pythagorean Theorem

jhncls — Tue, 29 Oct 2024 20:40:41 +0000

Article URL: https://www.tandfonline.com/doi/full/10.1080/00029890.2024.2370240

Comments URL: https://news.ycombinator.com/item?id=41989134

Points: 116

# Comments: 53

New comment by jhncls in "A Real Life Off-by-One Error"

jhncls — Thu, 05 Sep 2024 15:50:17 +0000

People are misunderstanding the meaning of an off-by-one error. Suppose the plan states that hold A and hold B need to be 11 holes apart. In the true spirit of the off-by-one error, this can be interpreted in 3 ways:

- either as 11 empty holes between the holds; - as 11 holes, start counting 1 just above hold A; - or as 11 holes, start counting with hold A as number 1.

Another real-life example, is a plumber who tells the construction worker that the distance between the holes for hot and cold water needs to be 15 cm. This was meant to be measured center to center, but the constructor worker interpreted it as the distance from the right side of the first hole to the left side of the second. The result can still be admired in our house, 10 years later.

New comment by jhncls in "Breakthrough a step toward revealing hidden structure of prime numbers"

jhncls — Thu, 01 Aug 2024 09:02:49 +0000

Discussion: https://news.ycombinator.com/item?id=40981272 There are 6 comments; the last one is clearly the most interesting: a link to a discussion by Terence Tao https://mathstodon.xyz/@tao/112557249982780815

Terence Tao also provides links to a presentation by James Maynard and Larry Guth: https://www.ias.edu/video/new-bounds-large-values-dirichlet-... and https://www.ias.edu/video/new-bounds-large-values-dirichlet-...

New comment by jhncls in "Almost-Linear Time Algorithms for Incremental Graphs"

jhncls — Tue, 30 Jul 2024 11:39:26 +0000

A preprint: https://arxiv.org/abs/2311.18295