A collection of musings over the last decade. [The old ones, imported from the shuttered Google+ blog, are yet incomplete.]
 | 2023-11-21 · MacOS apps I use on a near daily basis |
 | 2023-05-09 · FrACT₁₀ offers gratings |
 | 2023-05-01 · Das Black Forest Ballroom Orchestra spielt zum Tanz am 13. Mai |
 | 2023-03-08 · FrACT₁₀ as a “Web App” |
 | 2022-10-27 · Sorting mailboxes in Apples ‘Mail.app’ |
 | 2022-09-07 · Homöopathie – Verschüttelt, nicht gerührt |
| 2022-08-12 · FrACT₁₀ now also available as Windows executable |
| 2022-05-31 · Recent improvements in FrACT₁₀ |
 | 2022-05-12 · Kulturbühne Freiburg, Interview + Vortrag |
 | 2022-04-13 · Marens “Nachtlichter” – Die Leiter und mehr |
| 2022-03-02 · A new size calibration procedure for FrACT₁₀ |
 | 2022-02-02 · Floorball |
 | 2022-01-29 · There are also good news! |
| 2021-12-23 · A new button for FrACT₁₀ |
 | 2021-12-07 · My favorite flower still-life |
 | 2021-11-27 · Tucholski war's nicht (Impfen) |
| 2021-11-09 · FrACT₁₀ – 2 major updates |
| 2021-09-15 · FrACT₁₀ update – buttons & color |
 | 2021-08-19 · Kontoführung mit Chipkarte am Mac – Problem gelöst |
| 2021-08-01 · FrACT₁₀ – small update |
 | 2021-07-21 · Elektroautos generieren schon jetzt viel weniger CO₂ über ihren Lebenszyklus als Verbrenner |
 | 2021-07-13 · Genderstern – mehr Nach- als Vorteile |
| 2021-07-05 · FrACT₁₀ – fixed vexing buglet |
| 2021-06-28 · Das Impfparadoxon – Je mehr geimpft, desto mehr von den Neuerkrankten sind 2× geimpft… |
 | 2021-06-20 · Wireframe – which way does it rotate? |
| 2021-06-01 · FrACT₁₀ – Open sourced as of today |
 | 2021-05-15 · Tolles Buch – Andy Weir “Hail Mary” |
 | 2021-05-10 · Impfen bei uns leider langsam – und schon immer gab es Verweigerer |
| 2021-05-02 · FrACT₁₀ – Now with measure of dispersion and a correction |
| 2021-04-14 · First long distance e-car experiences |
 | 2021-03-31 · Preserving MacBook batteries |
| 2021-03-02 · Batterielebenszyklus von Elektroautos >100× resourcenschonender als Verbrenner |
| 2021-02-05 · FrACT₁₀ – Now with gamma calibration and more |
 | 2021-01-25 · OSA On-line Seminar |
 | 2020-12-24 · Festive Illusion |
 | 2020-12-20 · New addition to “Visual Phenomena” – Pop-out |
 | 2020-12-17 · set Battery Charge Level Maximum (for MacBooks) |
 | 2020-11-23 · Migrating to LibreOffice in MacOS |
 | 2020-11-22 · Heilsteine? Schöner Zeit-Artikel |
 | 2020-11-16 · Tolles Lied von Maren “Nicht wundern” |
| 2020-10-15 · FrACT₁₀ – Now with contrast threshold |
 | 2020-09-27 · MacOS – moving to zsh |
 | 2020-09-26 · Akkuspeicher für unsere Photovoltaik-Anlage |
 | 2020-09-20 · Füllstandsensor für die Zisterne |
| 2020-08-31 · Elektroautos erheblich klimafreundlicher als Verbrenner |
| 2020-06-21 · FrACT₁₀ – All-platforms version with 5 types of visual acuity |
 | 2020-06-06 · New Illusion – Chromostereopsis |
 | 2020-06-03 · Bandprobe in Coronazeiten |
 | 2020-05-22 · Wakeboarding opened |
| 2020-05-19 · FrACT₁₀ published, with a new user interface |
 | 2020-05-09 · Hochspannungs-Blitze einer Wimshurst-Maschine |
| 2020-05-08 · FrACT10 – Flash be gone! |
 | 2020-04-19 · Zwei Masken – ja, so muss man mit der Situation umgehen! |
 | 2020-04-17 · Web Audio API |
 | 2020-04-16 · Missing fundamental illusion |
| 2020-04-10 · FrACT – Freiburg Acuity (and more) Test at version 3.10.5 |
 | 2020-04-08 · Blue Bullshit |
| 2020-04-07 · Blauer Blödsinn |
 | 2020-04-05 · “Unstatistik” des Monats |
| 2020-04-01 · Um Mitternacht – ich liege wach |
 | 2020-03-31 · New illusion – Adjustable oblique grating |
 | 2020-03-29 · Der Reiher – war's das wert? |
 | 2020-03-22 · ggplot and Unicode |
 | 2020-03-19 · Relax with jellyfish |
 | 2020-03-18 · COVID-19 – Zeit für Wissenschaft und Fakten (GWUP) |
 | 2020-03-15 · Soap! Against SARS-CoV-2 |
| 2020-03-02 · Corona virus (SARS-CoV-2) – We should be “scared a bit” |
| 2020-02-22 · A publication on optimal battery management |
 | 2020-02-14 · Wine glass illusion |
 | 2020-02-03 · ResearchGate considered harmful |
 | 2020-02-02 · “Mosaik” tritt auf |
 | 2020-02-01 · Die “AugenBand” tritt auf |
 | 2020-01-26 · Energiefluss beim Klimawandel. Sehr guter Beitrag von Stefan Rahmstorf im Spiegel |
 | 2020-01-09 · Tintenfische haben Stereosehen |
 | 2020-01-09 · 5G – wohl nicht gesundheitsschädlich, aber unnötig und sicherheitsschädlich |
 | 2019-12-31 · There's so much good news in the world… |
 | 2019-12-28 · Leipzig |
 | 2019-12-18 · New Illusion – Color change (due to eye movements) |
 | 2019-12-16 · Adding an RSS / Atom feed |
| 2019-12-16 · Elektrofahrzeuge besser als Wasserstoff-getriebene |
| 2019-12-14 · Homöopathie wirkt nicht über den Placeboeffekt hinaus (Böhmermann, ZDF Neo) |
 | 2019-11-14 · Markdown quicklook in Catalina |
 | 2019-11-09 · FunCub's Maiden Flight |
 | 2019-10-29 · von Graefe-Preis – Vortragsprobleme |
 | 2019-10-13 · Compensating my flights' CO₂ |
 | 2019-10-12 · Grüne – Homöopathiekosten von den Kassen nicht ersetzen |
 | 2019-10-12 · Checking out my Slow Flyer |
 | 2019-09-10 · Friday for future in Freiburg |
| 2019-08-01 · Updating my site, Jekyll |
 | 2019-05-13 · John Oliver on the Green New Deal – brilliant |
| 2019-04-18 · HTML 5 – summary / details |
 | 2019-03-20 · Problems registering Oyster cards for foreigners |
| 2019-03-19 · MacOS hidden tricks – .nosync, .noindex, .nobackup |
| 2019-01-01 · Migrating my entire site to the static CMS “Jekyll” |
 | 2018-06-03 · HTTP → HTTPS |
 | 2018-03-28 · Loss of contour in equiluminance |
 | 2018-02-04 · Pattern-ERG: P50 & N95 differ in LOCAL origin… |
| 2017-09-21 · I couldn't agree more! |
| 2017-09-05 · Public water supply may contain dangerously tiny levels of homeopathic medicine, say experts |
 | 2017-08-09 · NO variant of the Café Wall Illusion – Skye's oblique grating |
| 2017-05-19 · On our way to being an outcast when not facebooking |
 | 2017-03-05 · Red Strawberrries |
 | 2017-02-28 · Life with USB-C is good |
 | 2017-02-14 · Opposite Rotation in Kitaoka's “Rotating Snakes Illusion” |
| 2017-01-17 · President Trump: The Inauguration (new Twilight episode) |
 | 2016-12-21 · Seasonal Illusion – “White Xmas” |
 | 2016-12-11 · Ferien in Lanzarote |
 | 2016-11-24 · Open Access for viewing – excellent! |
| 2016-11-21 · »Quit social media« – should be ‘asocial’, I couldn't agree more… |
 | 2016-10-22 · Wakeboarding – possibly for the last time this year |
| 2016-09-26 · Bodo Wartke – Nicht in meinem Namen |
 | 2016-09-13 · Vanishing Dots or Twelve black dots illusion |
| 2016-09-04 · Epic fails of mine on the #wakeboard |
| 2016-08-03 · Open Access – more than you ever wanted to know about it |
 | 2016-07-18 · These three low res icons below refer to new additions to my “illusions & visual phenomena” site. |
 | 2016-06-28 · Mein Elektromobil “Twizy” hat 10.000 km erreicht |
 | 2016-06-23 · Under water |
| 2016-06-21 · Typography & SciFI |
 | 2016-06-12 · Repaired my Guitar Amplifier |
| 2016-06-12 · ‘Chemophobia’ is irrational, harmful … |
 | 2016-05-21 · Brick Wall Illusion |
 | 2016-05-19 · ARVO in Seattle – sleepless |
| 2016-05-18 · Proud father! Maren singing |
| 2016-05-10 · John Oliver on science (mis-) communication |
| 2016-05-09 · Two guitarists I venerate, doing their thing together |
| 2016-05-07 · Lovely music: Antiquariat |
 | 2016-04-02 · CappCon 2016 |
 | 2016-03-08 · American Statistical Association: p-values considered harmful |
| 2016-03-07 · Contrast Rebellion – to hell with unreadable, low-contrast texts! |
| 2016-03-02 · Deutsche Bahn: Schlafwagen beibehalten! |
| 2016-02-16 · I've always preserved Quicktime Player 7 on my machines… |
 | 2016-02-12 · Ah… snowboarding, and a restorative break |
| 2016-02-06 · “GuitarNick” really has a knack for fluid fingerpicking arrangements |
 | 2016-01-29 · Visual Acuity: Feedback keeps your participants happy w/o affecting result |
 | 2016-01-11 · ggplot2 2.0.0 – Very nice, some plots will look different |
 | 2015-12-31 · Review Deadlines |
 | 2015-12-10 · An R question |
| 2015-11-29 · Idiotisch: EU will Atomkraft subventionieren |
| 2015-11-20 · On-line censorship growing |
| 2015-11-14 · Wakeboarding at the end of the season … |
 | 2015-11-14 · Under the surface of my natural swimming pond |
 | 2015-11-06 · Auftragsmalerei in Leipzig |
 | 2015-10-26 · AOO – Arbeitskreis Ophthalmische Optik |
 | 2015-10-20 · Another Predatory Journal … |
 | 2015-10-18 · Handbraking OS X El Capitan |
 | 2015-10-11 · Interview “SWR1 Leute” |
 | 2015-08-28 · Stop TTIP |
 | 2015-08-26 · Tresorit replacing Wuala |
| 2015-08-17 · As Alex so aptly states “…copyright is complicated…” |
| 2015-08-16 · TeamViewer – Access your computer remotely and share your desktop with friends – it’s free! |
 | 2015-07-25 · Pulfrich Effect |
 | 2015-07-01 · A great ISCEV Symposium in Lubljana, Slovenia |
 | 2015-07-01 · Lake Bohinj – Bohinjska Jezero |
 | 2015-06-17 · What a tangled web we weave – display resolutions |
| 2015-05-26 · TTIP already lowering health standards in EU! |
 | 2015-05-25 · 50 Years of the McCollough Colour Aftereffect |
 | 2015-05-23 · Pixel artifact – Be gone |
 | 2015-05-01 · Apple MacOS Photos: How to edit or change location metadata (EXIF data) |
 | 2015-04-25 · Colour Sampling of “The Dress” – with full #R code |
| 2015-04-24 · One way to make your voice against TTIP heard (a little) |
 | 2015-02-28 · Colored-Dress Enigma |
 | 2015-02-22 · Oliver Sacks |
| 2015-02-17 · R examples (not just) for users of Excel (or any spreadsheet) |
| 2014-12-31 · An amazing and balanced statement on dealing with protesters from the Nashville Chief of Police |
| 2014-12-31 · More good news for our world (from Hans Rosling) |
 | 2014-12-28 · Last new on-line vision experiment this year |
 | 2014-12-23 · “Woodpacking” for the winter |
| 2014-12-22 · Australian court to penalize homeopaths for claiming vaccine alternative |
| 2014-11-30 · NHMRC¹ concludes that the assessment of the evidence from research in humans does not show that homeopathy is... |
 | 2014-11-23 · Andy Weir's “The Martian” – wonderful! |
 | 2014-11-16 · Watercolor Illusion |
 | 2014-11-11 · Biermann im Bundestag, allein schon das Gitarrenspiel… |
 | 2014-10-17 · Wuala ok with Yosemite / Java, how-to |
 | 2014-10-10 · Nachtzüge erhalten! |
| 2014-09-14 · Bachblueten – für sowas möchte ich meinen Namen nicht hergeben ;) |
| 2014-09-06 · Homöopathen pfuschen mit bei Ebola – als wenn es nicht schon schlimm genug wäre! |
| 2014-09-06 · Abnehmen… |
 | 2014-08-27 · Enigma · https://michaelbach.de/ot/mot-enigma/ |
 | 2014-08-02 · Easter Island Mystery Moais … finally solved. |
 | 2014-07-30 · We don't want no fracking impact factor |
| 2014-07-19 · Critical parsing of corporate BS speak reveals industrial inhumanity – A surprise? |
| 2014-07-15 · TTIP – Ein Freihandelsabkommen, das uns unfreier macht |
 | 2014-07-06 · Wakeboarding in my backyard… |
| 2014-07-06 · Frankfurt Airport traffic enhancements |
 | 2014-06-29 · Colour Matching Game |
 | 2014-05-25 · Dynamic Ebbinghaus |
| 2014-05-17 · Bike Helmets – No really a Boon |
| 2014-05-13 · All I wanted to know about “wall wart” chargers |
 | 2014-05-11 · Triangle Puzzle |
| 2014-05-08 · When you pit two laws of life against each other… |
 | 2014-04-26 · Context affects colour |
| 2014-04-21 · Selten klare Worte: Angst vor “do no evil”-Google |
| 2014-04-16 · Freiburg Acuity (and more) Test (FrACT) at version 3.8.2 |
| 2014-04-06 · All along the watchtower |
 | 2014-04-04 · MacFixit → MacIssues |
 | 2014-04-04 · How many balls |
 | 2014-03-30 · Tips for #Scientific #Citation Management with Zotero |
 | 2014-03-26 · Strolling in La Gomera |
 | 2014-03-01 · Anamorphosis in Art |
| 2014-02-23 · Great article on Carl Sagan here! |
 | 2014-02-05 · Benham's Top unrolled |
 | 2014-01-20 · Rosetta: Arival of Signal |
 | 2014-01-15 · Homespun remedies that work |
 | 2014-01-14 · Joys of Snowboarding |
 | 2014-01-04 · Motion-induced blindness |
| 2014-01-04 · Snow-diving foxes |
 | 2014-01-01 · New version of “Flash Lag” in Visual Phenomena |
| 2013-12-23 · Now 107 Visual Phenomena: “Ebbinghaus Illusion” |
| 2013-11-24 · Snowboarding begins |
| 2013-11-20 · Der Arbeitskreis Ophthalmische Optik … |
| 2013-11-17 · Our Swimming Pond in mid-November… |
| 2013-11-02 · My Motion Adaptation Demo updated to no longer need Flash. |
| 2013-10-18 · Just back from China… |
| 2013-10-05 · Richard Feynman… |
| 2013-10-04 · Harvesting in Leipzig |
 | 2013-09-29 · How hot will it get in your lifetime? |
 | 2013-09-22 · A #twizy – want to come along? (Yes, there is a passenger seat at the back) |
| 2013-09-17 · 106 Visual Phenomena & Optical Illusions – Tusi Motion |
| 2013-09-15 · Gravity Challenge |
| 2013-09-08 · Sometimes iPhoto… |
 | 2013-09-01 · Elektro-Maxiroller VX1 |
 | 2013-08-30 · Tom Troscianko Prize for “the most outrageous presentation” |
 | 2013-08-15 · “MacPro” – Apple, what are you thinking? |
| 2013-08-01 · R + ggplot + smoothers |
| 2013-07-12 · 105 Visual Phenomena & Optical Illusions – Colour Fan |
 | 2013-06-04 · Paragliding |
| 2013-05-30 · British Research Assessment Framework (REF) – simple analysis reveals it can't work, is driven by interests of… |
| 2013-05-27 · About time we got serious about misuse of the impact factor |
| 2013-05-26 · Teaching in Venice |
| 2013-05-26 · FrACT – Freiburg Vision Test |
| 2013-05-20 · Wow, Dennet! |
| 2013-05-18 · Auftragsmalerei in Leipzig |
| 2013-05-13 · Dieses Experiment von Peter Brugger generiert bestimmt interessante Ergebnisse! |
| 2013-05-01 · Hah, Wakeboarding… |
| 2013-05-01 · Differentially clenching fists for learning & recall? |
| 2013-04-26 · Großartiger Vortrag von Manfred Spitzer |
| 2013-04-23 · 104 Visual Phenomena & Optical Illusions – Blind Spot Demo |
| 2013-04-13 · Great article on homeopathy in arstechnica – Not because we think there's a value in talking about it… |
| 2013-04-09 · Theatermacher Gundelfingen |
| 2013-04-09 · Academic Spam |
| 2013-04-04 · Cut by the bleeding edge of technology – twice |
 | 2013-04-01 · No April Fool's Joke – Wakeboarding opened today |
| 2013-03-31 · Easter in Leipzig |
| 2013-03-16 · This is an amazing (if only beginning) piece: the boundary conditions for research ideas in real life. |
| 2013-03-15 · Winter on the Vectrix Maxi-Scooter |
| 2013-03-09 · “Snake Illusion” across species |
| 2013-03-09 · Landolt – der mit dem Ring |
| 2013-02-24 · Snow and snowboarding in my neighbourhood |
| 2013-02-23 · Einerseits hinreißende Satire, andererseits schrecklich wahr … |
| 2013-02-20 · 103 Visual Phenomena – Ames Window |
| 2013-02-19 · Apple Fusion Drive – Rolled my own |
| 2013-02-09 · 102 Visual Phenomena – Moiré Patterns |
| 2013-01-20 · 100 + 1 Visual Phenomena: Mach Band |
| 2013-01-17 · Tips for Scientific Citation Management with Zotero |
| 2013-01-07 · Marrying TextWrangler to git |
 | 2012-12-29 · Music, Yes, Music! |
 | 2012-12-27 · Round numbers fascinate us |
 | 2012-12-20 · SSDs = Simple Speed Demons = Solid State Disks |
| 2012-12-19 · No correlation between video games and gun-related murders |
 | 2012-12-10 · Zotero – Citation management done well, but one problem… |
 | 2012-12-09 · Although the eyes have it, they do not stand alone – The Bayesian interpretation of perception |
 | 2012-11-25 · On Casino Royale – the first James Bond novel |
| 2012-11-25 · Deep Learning explained so I understood a little |
 | 2012-11-21 · 100 Visual Phenomena |
| 2012-11-16 · Been there… |
 | 2012-11-11 · Mind Lab – Graceful demos of perceptual phenomena |
| 2012-11-09 · Data peeking is always wrong (except when you do it right) |
| 2012-11-02 · Scientific Citation Management |
 | 2012-11-01 · Some pleasures in #science in Gothenburg |
 | 2012-10-24 · R & ggplot2 – “Violin plots” considered beautiful |
 | 2012-10-21 · Warm days in autumn on the water + AppleSripted webcam dowloader |
| 2012-10-15 · Statistics>R: Re-ordering factor levels |
| 2012-10-06 · Bonzo Dog Doo-Dah Band etc. |
 | 2012-10-03 · Summer is gone… |
 | 2012-09-28 · Walk-in Eye Model with a twist |
| 2012-09-28 · Signing away your rights – or not |
| 2012-09-24 · ggplot2 – geom_text vs. annotate(geom="text") |
 | 2012-09-19 · A new addition to Visual Phenomena & Optical Illusions |
 | 2012-09-18 · Where waterlilies go to die |
| 2012-09-16 · Some people cannot learn to program? |
 | 2012-09-13 · An experience with the rapid dynamics of search engines |
 | 2012-09-07 · Receiver Operating Characteristics (ROCs) roc |
| 2012-09-05 · Spicing up your papers |
 | 2012-09-02 · I was cross … |
 | 2012-08-28 · Quantity vs Quality in Science |
 | 2012-08-26 · A flower in our swimming pond |
| 2012-08-25 · Higher incentives → less performance… |
 | 2012-08-25 · Adaptive Optics – Amazing image resolution from live human eyes |
 | 2012-08-15 · MacOS Mountain Lion – Do this for a functional “New Document Model” |
| 2012-08-14 · Getting your priorities right in space: Training on the robot arm vs impressing the gals with yo-yo tricks… |
| 2012-08-14 · “64% of the facts on the Internet are incorrect by 48% according to 52% of commentators” |
 | 2012-08-05 · Scientific Style Change: Boasting exploded in the last 5 years – with R code to prove it |
 | 2012-07-31 · Xcode & Mountain Lion Update Woes |
| 2012-07-25 · Inference by Eye – how to read statistical error bars |
 | 2012-07-24 · Of Macs, sealing wax, etc. Episode 2 |
 | 2012-07-22 · R, ggplot2, and axis limits – unexpected behaviour + solution |
 | 2012-07-19 · Of Macs, sealing wax, and very old Macs |
| 2012-07-17 · Optical Art with R |
 | 2012-07-12 · Bridget Riley's Moving SquaRes |
 | 2012-07-09 · Guitar playing and Neuroscience |
 | 2012-07-08 · World's most accurate pie chart |
| 2012-06-24 · Color Choices for Scientific Graphing |
 | 2012-06-19 · Musings on programming languages |
| 2012-06-17 · Cappuccino? |
 | 2012-06-14 · R – I like it, but it's so difficult… same goes for ggplot2! |
| 2012-06-12 · A talk on GIT by Linus Torwalds. |
 | 2012-06-10 · On our way to this year’s ISCEV Symposium in Valencia we discovered a pearl – “Chez Michelon” |
| 2012-06-10 · Neutrino faster-than-light issue conclusively put to rest. Ha! |
| 2012-05-25 · The R Project for Statistical Computing is gaining ground world wide after I adopted it for all my analyses &... |
| 2012-05-20 · As some of my friends & colleagues know, I've moved nearly all of my experiment analysis and graphing to "R"... |
| 2012-04-27 · Not really new, but uplifting ;-) |