JF Ptak 🏳️‍🌈

History of science+tech+ideas | bookseller/writer | visual culture| display of info | formal+outsider logic+image | interesting odd

[JF Ptak 🏳️‍🌈 @ptak]

@typepad Thanks for working on this. The "blocked" page has come down but now mail delivery to support at typepad bouncing back. #typepadstatus

[Andrea Pitzer @andreapitzer]

The new episode of "Next Comes What" is up! It covers how the US has been moving further outside the rule of law for a long time & what that will mean for 2025. We look at how people fought torture post-9/11 & how Americans are already defying Trump allies https://t.co/ehwyGp7KzM

[JF Ptak 🏳️‍🌈 @ptak]

Electra minima.

[JF Ptak 🏳️‍🌈 @ptak]

(1) Alien esophageal super-intelligence a billion-miles-away, or (2) a cloud.

[JF Ptak 🏳️‍🌈 @ptak]

Went out to Publix for cake this afternoon, came upon pi.

[JF Ptak 🏳️‍🌈 @ptak]

Looks like the exclusion legislation that prohibited Chinese people in 1882 was rescinded in the year this pamphlet was published in 1943. The total exclusion ended, allowing all of 100 (actually 106) "qualified" Chinese, per year.

[Federico Italiano @FedeItaliano76]

This geometrical landscape by J.H. Pierneef (1886-1957)
[The Kloof, Rustenburg, 1928]

[Paul Prudence @MrPrudence]

ISO/IEC 10646

The problem of long-repeat strings generating delicate encodings (or weaves?) has been known to signal processing people for decades

[Simon Kuestenmacher @simongerman600]

What’s your favorite type of power line? Follow me for more tips on great questions to ask on first dates.

[Information is Beautiful @infobeautiful]

interesting - between 34-43% of Americans have not voted in the last 3 US elections
via Reddit https://t.co/uI1pnVQ93j

[Paul Prudence @MrPrudence]

Lothar Charoux
Untitled, 1956

[James C. Klagge @jklagge]

New bookcase just for Wittgenstein.

[JF Ptak 🏳️‍🌈 @ptak]

Wait until the polls close. Or not. (Illus London News, 1929.)

[Physics In History @PhysInHistory]

In the 1960s, Stanislaw Ulam, while doodling during a boring presentation, discovered a surprising pattern when he arranged numbers in a spiral and highlighted the primes. This spiral revealed a striking pattern and structure in the distribution of prime numbers.
📷visualizing math

[Dr. Scott M. Sullivan @DrScotMSullivan]

Immanuel Kant’s personal copy of Alexander Baumgarten’s book on metaphysics. Now I don’t feel so bad about writing in my books.

[Science News @SciencNews]

Human evolution

Source: visualcapitalist #evolution #Human #Biology

[JF Ptak 🏳️‍🌈 @ptak]

Interesting sort of early-ish human/computer anthro-imaginary applications (but not really). Both Communications ACM 1966.

[Paul Prudence @MrPrudence]

Jonathan Callan
Relative to, 2004

[Paul Prudence @MrPrudence]

Victoria Burge
Day Weave, 2019

[JF Ptak 🏳️‍🌈 @ptak]

Nicely designed. (Popular Mechanics, 1948.)