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Posted by jpluimers on 2025/10/31
Distorted jpeg of “Trick OR/AND/XOR/NOR/NAND/XNOR Treat”
Last Halloween, 📊 on X [WaybackSave/ArchiveWip] posted the image on the right:
It is a play on [Wayback/Archive] Visual Representation of SQL Joins- CodeProject, which made [Wayback/Archive] Visual Representation of SQL Joins [RTzRa’s hive] to include it as well.
The original with some extensions are from @38mo1:
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Posted by jpluimers on 2025/09/14
Interesting: [Wayback/Archive] What Are Dreams For? | The New Yorker
…
In a series of papers, Blumberg articulated his theory that the brain uses REM sleep to “learn” the body.
…
Are the robots really dreaming?
…
Via:
--jeroen
https://x.com/jmechner/status/1967129596903711139
https://x.com/NewYorker/status/1966950083024334849
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Posted by jpluimers on 2025/05/12
Want: [Wayback/Archive] William Le’s Perpetual Motion Machine ver.2 – (plz visit my Amazon sto – LovelyWings
I think I like the transparent version most, but the wood versions (yellow or brown) of course have more mystery.
There are more products in [Wayback/Archive] Wooden Kinetic Sculpture for Art Lovers – LovelyWings.
You can buy some of them at [Wayback/Archive] Amazon.com: LovelyWings, for instance the brown version of the [Wayback/Archive] Amazon.com: Perpetual Motion Machine – Infinitive Marble Machine – William Le’s Perpetual Motion Simulator : Handmade Products.
Via: [Wayback/Archive] You can’t hide the batteries when it’s transparent! – YouTube
--jeroen
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Posted by jpluimers on 2025/02/07
Ain’t history extra lovely when someone discovers the original drawings of what her dad had sent to space?
Back in the 1970s, Frank Drake did two memorable things: he helped design the Pioneer plaque (sent to space in 1972 on Pioneer 11) containing among other things pulsar map, and later helped design the 1977 Voyager Golden Record (sent to space in 1977 on both Voyager 1 and Voyager 2) again containing the pulsar map. In between, he helped designed Arecibo message broadcasted to space in 1974.
And guess what: today is the 50th anniversary of that message being broadcasted.
Almost 10 years ago, in 2016 his daughter Nadia Drake found back the original drawing of the pulsar map: Read the rest of this entry »
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Posted by jpluimers on 2025/01/01
I wrote a two earlier blog posts around puns in programming book indices before:
In the last one, I promised to list more occurrences which I now finally had time for to do.
But let me first elaborate more on the observation that modern computer books (like for instance on C# and Delphi beyond version 1) lack these kinds of index pun.
On the Delphi side, the index entry joke for recursion got removed no later than Delphi 3 (I am still looking for a Delphi 2 version of the Object Pascal Language Guide, see further below) even before the book being fully redone electronically and the index pages generation being automated in
I think I even understand why that is: the process of creating of indices. By the start of this century, more and more indices were automatically being generated and for the last 2 decades or so, all of them are. Back in the days however, indices were mostly done by hand. Nowadays, with everything automated, it is actually pretty tricky in most environments to add such an “infinite loop” index entry like in the Turbo Pascal book, as it would require two things at once:
Posted in .NET, C, C#, C++, Conference Topics, Conferences, Delphi, Delphi 1, Delphi 2, Development, EKON, Event, History, LaTeX, LifeHacker, LISP, Mathematics, Pascal, Perl, PL/I (a.k.a. PL/1), Power User, science, Software Development, Turbo Pascal, Typesetting | Tagged: 1, 7 | 4 Comments »
Posted by jpluimers on 2024/12/24
These are cool explanations of Bell’s Theorem:
www.youtube.com/watch?v=zcqZHYo7ONs“–jeroen
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Posted by jpluimers on 2024/09/20
In case I ever need to refresh my linear algebra knowledge, this series of videos is where to start: [Wayback/Archive] Linear Algebra | Mathematics | MIT OpenCourseWare
The videos: [Wayback/Archive] Video Lectures | Linear Algebra | Mathematics | MIT OpenCourseWare
Via: [Wayback/Archive] Santiago on Twitter: “The best linear algebra course out there. PERIOD. For Free! MIT’s Professor Gilbert Strang. Go through these videos, and you’ll never ever have a problem with linear algebra again!”
–jeroen
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Posted by jpluimers on 2024/06/21
Most PNG/JPEG versions of this get the bottom right corner wrong (it should read 66 Celsius, not 68).
I have colourised the table as most of the PNG/JPEG versions have.
[Wayback/Archive] Hitzeentwicklung im Auto nach Zeit und Außentemperatur | Statista (English below)
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Posted by jpluimers on 2024/05/14
Besides a cool portable spectrometer and software (written in Delphi), [WayBack] Field Tested Systems also has a really nice poster showing the spectrogram fingerprints of all the elements:
Via Delphi: 2 things to check when FMX/VCL units are inserted when you use VCL/FMX components (G+ post by Tom Field)
–jeroen
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Posted by jpluimers on 2023/07/03
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The Wiert Corner - irregular stream of stuff 