iiinova — where your digital self keeps evolving

Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 14/10/2026

This is another great result from ALMA! That to ALMA’s exceptional spatial resolution, and spectral resolution, astronomers have found rings, gaps, and cavities in extremely compact disks around young stars. These observations show that planet-formation […] [Original post on mathstodon.xyz]

ALMA images of the 11 compact planet-forming disks observed in the Lupus star-forming region. Using the highest angular resolution available with ALMA at a wavelength of about 0.9 millimeters, astronomers revealed previously hidden structures in several of these small disks. The lower-right panel shows the orbits of Earth, Mars, Jupiter, and Saturn, together with the asteroid belt, for scale. The comparison illustrates how these observations probe planet formation at distances comparable to those within our own Solar System. Each white scale bar represents two astronomical units; one astronomical unit is the average distance between Earth and the Sun. Credit: P. Curone et al. – ALMA

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 13/09/2026

@brucelawson WTF? This is how the Also Sprach Zarathustra intro from 2001: A Space Odyssey appears on my account…

Cover art of the album titled Out of This Worlds with John Williams and The Boston Pops. It is said to include tracks from Return of the Jedi, E.T., Star Trek or Twilight Zone.

However, on top of the playing control it reads (in bold) “2001: A Space Odyssey”, and under it, on a lighter font, it reads: John Williams & Boston Pop, with the P truncated, just showing the vertical stem of the P.

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 19/05/2026

Looks like last Saturday, May 16th,was the International Day of Light. I guess that also made it the international day of all photon based astronomy (from radio to gamma-rays), although not gravitational wave astronomy… and it should also be then the […] [Original post on mathstodon.xyz]

Vertically composed closeup of a cactus, with some blurred vegetation behind it.

Vertically composed closeup of a succulent-type plant, with mostly reddish colors and a bit of green, showing translucency.

Horizontally composed picture of two mounds, a higher one on the left with a white cross on top, and a smaller one receding into the water. The foam from a wave striking on the right mound surrounds it.

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 23/03/2026

Dear Fedimind, is there a way to change the default kind of link created by Keynote when pressing Command-K (Add link)? By default it goes to create a link to a different slide, which is a useful capability, but not what I want 95% of the time… I imagine that […] [Original post on mathstodon.xyz]

Screenshot of the Format menu in Keynote, with the Add Link option selected, which opens a submenu with Slide, Webpage, Email, and Phone Number options.

Two rounded rectangles in red select the Slide and Webpage options, and the Slide option is the only one with a key combination of Command-K (⌘K).

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 18/03/2026

Nice touch from Lux, the makers of @halide, creating a digital diploma for their email tutorial of their camera app, which has great support for RAW, ProRAW, and other formats, and manual ISO, exposure, focus settings, in a very nice package… A good excuse to […] [Original post on mathstodon.xyz]

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 07/03/2026

RE: indieweb.social/@jbz/11618461301645… This guitar-rocking Tyrannosaurus Rex was my favorite from this stack. And the fact that you could lasso it from the stack was magical at the time. #HyperCard #ClipArt #TwoBitArt

Two-bit HyperCard clip art image showing a Tyrannosaurus Rex playing some cords on an electric guitar. The tail props the animal as a third leg. The eyes look both closed in concentration or looking up, depending on how you perceive them.

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 19/02/2026

This image saddens me, but I'm also supporting the small guy, taking advantage of what is out there... From www.theguardian.com/environment/202…

Image of a seahorse clutching a pink cotton bud on relatively shallow, somewhat murky water.
Title: Sewage Surfer.
Credit: Justin Hofman, The Guardian

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 02/12/2025

This is a very cool result, and an extremely interesting application of current ALMA Observatory capabilities, in particular its long baselines to get higher spatial resolution (i.e., how small are our pixels in the X and Y dimension). But to achieve it, the […] [Original post on mathstodon.xyz]

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 01/12/2025

Dr. Dana Alina from Nazarbayev University has lead a team that has revealed the magnetic field structure of the ring-like molecular cloud G111 (near NGC7538, an active star forming region). The ring shape could have several origins: it could be a remnant of a […] [Original post on mathstodon.xyz]

Annotated version an image taken by several instruments of the Herschel infrared mission.

The image shows a wispy, filamentary structure in orange filling around two thirds of the image, with some whiter, brighter highlights on the mid left and bottom center regions.

One arrow, labelled G111, points to the center of a ringed-shaped void in the top center of the image. A few bright white spots appear around the rim of the ring. Another arrow, labelled NGC 7538 (a star forming region), points to the bottom center near the brightest spots in the bottom of the image.

Credits: ESA/Herschel/PACS/SPIRE. Acknowledgements: Cassie Fallscheer (University of Victoria), Mike Reid (University of Toronto) and the Herschel HOBYS team.

Figure showing magnetic fields for the G111 region, overlaid over the Plank emission (dark blue to dark brown, passing through yellow, white, and shades of orange).

There are purple line markings overlaid (Iabeled VGT ¹³CO in the legend) representing magnetic field orientation derived from carbon monoxide (¹³CO) observations using the Velocity Gradients Technique.

There are also red line segments —labeleled Starlight Polarization (H)— showing magnetic field orientations derived from polarized starlight measurements in the near-infrared H-band.

The vertical axis (labeled δ) shows Declination from approximately 61°15' to 61°45'; the horizontal axis (labeled α) shows Right ascension from about 23h20m to 23h16m.

See referenced paper for detailed caption.

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 29/10/2025

[Link to Macintosh Garden; site busy right now] Just spent some time drifting away to get a well needed nap by reading the System 7 manual [1], and I just realized Command-clic on folders was already avaiable in the System 7 Finder! I knew about those in […] [Original post on mathstodon.xyz]

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 23/10/2025

It took a while, but the Apple Silicon Inside hologram stickers from @BasicAppleGuy (plus one more from his avatar) finally arrived. Totally worth the money!

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 23/09/2025

Hi all, is iPhone Mirroring broken on macOS '26 (Tahoe) just for me, or for everyone? This worked well for me up to macOS 15.6.2, but have never managed to make it work in any of the two computers updated to macOS '26. The phone (iPhone 12 Pro Max) has also […] [Original post on mathstodon.xyz]

Screenshot of the iPhone Mirroring app in macOS 26 (including its drop shadow) showing a blue-tinted iPhone X family icon, and under it the vertically and horizontally centered text:

Mac Locked (in bold)
Your Mac was locked when iPhone Mirroring connected.

Below that text there is a purple tinted Connect button.

Screenshot of the iPhone Mirroring app in macOS 26 (including its drop shadow) showing a grey iPhone-with-Dynamic-Island-family icon (larger than the previous blue, iPhone-X-family icon) and under it the vertically and horizontally centered text:

Timed Out (in bold)
iPhone Mirroring timed out due to iPhone use while connecting.
Lock your iPhone before connecting.

Below that text there is a purple tinted Connect button.

Screenshot of the iPhone Mirroring app in macOS 26 showing connection progress with an iOS 26 styled background and the following text centered both vertically and horizonntally:

Connecting to (greyed out, in small type)
iPhone 12 Pro max (bold, with an animation filling the grayed out text with dark color from the bottom of the letters upwards)

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 20/09/2025

[eFootball replay video] I guess it’s difficult to be nearer to scoring a goal without actually doing it than this… #eFootball #NotAGoal

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 04/09/2025

[eFootball video game replay] Goal from Mbappé under the goalkeeper’s armpit. #eFootball #eFootball2025 #goal #video #replay

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 07/08/2025

Apart from the fact that Apple found more time for pleasing a just-not-yet-by-name dictator than for fixing their issues with the EU or developers and design something unique for that “so called person”… However, from the picture in the article it seems that […] [Original post on mathstodon.xyz]

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 25/07/2025

Bueno, lo conseguí: primera vez que consigo ganarle a la máquina en el justo de futbol de KONAMI… y tuvo que ser en un emulador, en este caso openMSX, que es ideal cuando uno tiene una ROM que ejecutar. openmsx.org ps. @runjaj, mandaste mi […] [Original post on mathstodon.xyz]

Snapshot of a macOS window titled openMSX 20.0 - C-BIOS MSX2+

The image has a black background, and the top 3/5ths of the screen are dominated by a square (done by characters that might resemble a bold bullet point, •) titled Score Record.

Inside, you can find the following centered text:

LEVEL 1
STONES 01-03 EAGLES
WINNER EAGLES

The Winner Eagles text is accompanied by a cheerleader.

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 21/07/2025

I had not seen Ars Technica’s Moonshark (equivalent to Twitter’s Fail Whale) for ages! I’m both glad to see it is still part of the lore, and distressed it happened… maybe the Mastodon stampede got them? Ironically, I was try to access this link […] [Original post on mathstodon.xyz]

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 02/07/2025

One of the best things about Flickr is the longevity of its APIs… and that tools like BigHugeLabs' FlickrDNA still work! bighugelabs.com/dna.php?username=ju… #Flickr #FlickrDNA #APIs #web20

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Dr. Juande Santander-Vela @juandesant.mathstodon.xyz.ap.brid.gy · 01/07/2025

ALMA reveals hidden structures in the first galaxies of the universe! Rodrigo Herrera-Camus, principal investigator of the CRISTAL survey, professor at Universidad de Concepción, and Director of the Millennium Nucleus for Galaxy Formation (MINGAL), is using […] [Original post on mathstodon.xyz]

Gallery of galaxy maps from the CRISTAL large program showing the distribution of cold gas and dust from ALMA observations of each galaxy. Each contour map (galaxy) is on top of a colorimage indicating concentrations of ionized carbon ([CII]) emission ([CII] is a tracer for cold interstellar gas). The yellow-orange centers show the densest concentrations of the cold gas, while the purple contours trace its extended structure.

This image shows the different contributions to CRISTAL's multi-wavelength data set, showing the complementary data being contributed by different telescopes. From left to right:

Stars: JWST/NIRCam images revealing the near infrarred light from young stars.
Young stars: HST/WFC3 observations showing star formation activity also in infrared (1.25 µm).
Cold gas: ALMA's [CII] 158 μm observations mapping the cold interstellar medium.
Gas rotation: ALMA velocity maps providing info about galaxy line-of-sight kinematics based on relative redshift of ALMA's [CII] 158 μm observations.

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