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**Science is built up with facts, as a house is with stones.
But a collection of facts is no more a science than a heap of stones is a house.**
— _Henri Poincare_
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[3D Particle BoxA three-dimensional particle physics playground.](particle_box/index.html) [3D Printing for BuildersHow to print in depth](3DPrinting/index.html) [AI Image GenerationI explain how AI is changing the worlds of art and photography.](AI_Image_Generation/index.html) [Alaska 2018The article set for the 2018 Alaska expedition.](alaska2018/index.html) [Book ReviewsA collection of brief reviews of works that impressed me.](book_reviews/index.html) [Computer Aided DesignUse a computer to shape your world.](Computer_Aided_Design/index.html) [Consumer AngstA somewhat tart analysis of consumerism.](lutusp/consumerangst.html) [Finance CalculatorAn interactive JavaScript financial calculator.](finance/index.html) [How Does It Feel?An inquiry about intelligence.](reader_exchanges/How_does_it_feel.html) [If I Were In ChargeI can dream, can't I?](if_i_were_in_charge/index.html) [JokesA short list of my favorite jokes.](jokes/index.html) [LaTeX EditorAn interactive tool for math publishing.](latex/index.html) [Psychology and NeuroscienceOn the transition from psychology to neuroscience.](psychology_and_neuroscience/index.html) [Psychology and Neuroscience : FeedbackSelected replies to my article "Psychology and Neuroscience".](psychology_and_neuroscience/reader_feedback.html) [Software-Defined Radios IIAn updated account of the revolution in computer-aided radio reception.](software_defined_radios_II/index.html) [The Best and Worst College MajorsChoosing the right course of study.](best_and_worst_college_majors/index.html) [The Physics Behind Stopping a CarIncludes an explanation, equations, and a calculator — recently updated.](braking_physics/index.html) [The Right to ChooseThe path to gender equality.](right_to_choose/index.html) [Tracking the James Webb Space TelescopeLearn how computers imitate nature.](tracking_the_JWST/index.html) [Unicode Character SearchAn easy-to-use Unicode character search page including emojis.](unicode/index.html)
[3D Printing for BuildersHow to print in depth](3DPrinting/index.html) [Anycubic Kobra Max: Be CarefulA first-rate printer with a serious vulnerability.](3DPrinting_Anycubic_Kobra_Max/index.html) [Platonic Solids I: Vertices and EdgesFrom abstract idea to physical model](platonic_solids_1/index.html) [Platonic Solids II: Edges and FacesMore abstraction, better result](platonic_solids_2/index.html)
[Biography — Paul LutusA concise biographical note.](administration/index.html) [Full Site Search: www.arachnoid.comA full-site search for words and phrases you choose.](sitesrch/index.html) [Master Index — arachnoid.comA full, expandable index to www.arachnoid.com.](lutusp/siteindex.html) [Master index — arachnoid.com (no DHTML)A full index to www.arachnoid.com without DHTML.](lutusp/siteindex_noDHTML.html)
[AnchorSentinelAn Android-based navigation/anchor watch program](android/AnchorSentinel/index.html) [Android application Privacy PolicyThe global privacy policy for all arachnoid.com Android applications hosted on Google Play.](android/privacy_policy/index.html) [Android Offline Topographic MapUsing an Android device as an offline, off-road GPS/mapping resource.](android/android_offline_map/index.html) [Android-x86 Desktop HowtoA step-by-step guide for Android kernel configuring and compiling.](android/Android-x86/index.html) [CarpeTempusAn Android-based alarm/timer program](android/CarpeTempus/index.html) [Linux on AndroidHow to run a desktop Linux distribution on an Android device.](android/LinuxOnAndroid/index.html) [SatFinderAndroidAn Android-based satellite dish resource](android/SatFinderAndroid/index.html) [SSHelperAn Android-based multi-protocol server](android/SSHelper/index.html) [SSHelper : FAQ/User Feedback PageReader inquiries and comments about SSHelper.](android/SSHelper/feedback.html) [TankCalcAndroidAn Android-based storage tank analyzer](android/TankCalcAndroid/index.html) [TidePredictorAn Android worldwide tide/current prediction program.](android/TidePredictor/index.html)
[Book ReviewsA collection of brief reviews of works that impressed me.](book_reviews/index.html) [Boycott MicrosoftAn article that describes Microsoft's history, marketing strategy and increasingly baroque legal requirements.](boycott/index.html) [Equities MythsThings you should know about investing.](equities_myths/index.html) [Everything You Know is WrongIgnorance is knowledge — or is it the other way around?](wrong/index.html) [Fire Your Stockbroker!Investment myths disproven.](fire_your_stockbroker/index.html) [If I Were In ChargeI can dream, can't I?](if_i_were_in_charge/index.html) [JokesA short list of my favorite jokes.](jokes/index.html) [Programming Handheld CalculatorsA reminiscence about programming in the era before personal computers.](programmable_calculators/index.html) [The Best and Worst College MajorsChoosing the right course of study.](best_and_worst_college_majors/index.html) [The Idea CarnivalA collection of brief, entertaining expositions.](carnival/index.html) [The Levels of Human ExperienceThis article set discusses the four primary ways by which people process their experiences.](levels/index.html) [The Symmetry PrincipleA deceptively simple idea we all need to understand.](symmetry/index.html) [Was Thanos Right?In "Infinity War", Marvel Comics super-villain Thanos kills off half the world's population. Would this fix the planet?](was_thanos_right/index.html)
[Area of an Irregular PolygonAn easy solution to a difficult problem.](area_irregular_polygon/index.html) [Binomial ProbabilityAn interactive exposition of a key probability method.](binomial_probability/index.html) [BiQuadDesignerA rewritten Java/JavaScript biquadratic filter designer.](BiQuadDesigner/index.html) [Consumer Loan CalculatorAn interactive consumer-oriented loan evaluation tool.](consumer_loan_calculator/index.html) [Equities MythsThings you should know about investing.](equities_myths/index.html) [FFTExplorerA signal processing workshop, recently rewritten in Java.](FFTExplorer/index.html) [Finance CalculatorAn interactive JavaScript financial calculator.](finance/index.html) [Graphinity OnlineAn online graphing resource written in JavaScript.](graphinity_online/index.html) [Introduction to StatisticsA practicum for statistical analysis.](NormalDistribution/index.html) [Mandelbrot SetAn exploration in pure mathematics.](mandelbrot_set/index.html) [Number Base ConversionsA calculator for converting between number bases](javascript/baseconversions.html) [PLCalcA powerful scientific/financial calculator.](PLCalc/index.html) [Polygon CalculatorAn online application that computes common values for regular polygons.](polygon_calculator/index.html) [Polynomial Regression Data FitA polynomial regression data fit application with some technical background.](polysolve/index.html) [Quadratic Equation SolverA numerical quadratic equation Solver with some technical background.](quadsolver/index.html) [Regular Expression LaboratoryAn interactive JavaScript regular expression processing engine.](regex_lab/index.html) [Satellite Finder Online (JavaScript)A Web-based geostationary satellite locator.](satfinderonline/index.html) [Snell's Law CalculatorA convenient JavaScript calculator for Snell's Law results.](OpticalRayTracer/snells_law_calculator.html)
[ArachnophiliaRecently upgraded to version 5.5.](arachnophilia/index.html) [BiQuadDesignerA rewritten Java/JavaScript biquadratic filter designer.](BiQuadDesigner/index.html) [FFTExplorerA signal processing workshop, recently rewritten in Java.](FFTExplorer/index.html) [HDTV Test PatternA resource for configuring flat-panel video displays.](HDTVTestPattern/index.html) [IcomProgrammmer IIA Python resource for programming Icom radios.](IcomProgrammer/index.html) [JDBClientA Java-based MySQL database management tool.](JDBClient/index.html) [JNXA Java Navtex marine weather receiver/converter.](JNX/index.html) [JRX: Virtual Ham RadioA virtual interface for many amateur radios.](JRX/index.html) [JSigGenA Java-based signal generator.](JSigGen/index.html) [JSQLiteClientA Java-based SQLite database management tool.](JSQLiteClient/index.html) [JTides Home PageAn easy-to-use tidal-prediction program with a worldwide database.](JTides/index.html) [JWXA Java short-wave weatherfax receiver/converter.](JWX/index.html) [MagicLanternA multimedia presentation workshop.](MagicLantern/index.html) [OpticalRayTracer Home PageA completely rewritten virtual lens/mirror design workshop.](OpticalRayTracer/index.html) [PLCalcA powerful scientific/financial calculator.](PLCalc/index.html) [PLCashA personal finance program.](PLCash/index.html) [Satellite Finder Home PageA satellite locator and dish alignment program.](satfinder/index.html) [TankCalcA comprehensive storage tank analyzer.](TankCalc/index.html) [TankFlowA powerful flow-based storage tank analyzer.](TankFlow/index.html)
[NetworkControlA convenient network interface controller for Linux.](NetworkControl/index.html) [PHP Writer Home PageA sophisticated PHP MySQL database client.](php_writer/index.html) [Satellite Finder Online (JavaScript)A Web-based geostationary satellite locator.](satfinderonline/index.html) [SignalGen Home PageA virtual audio signal generator.](SignalGen/index.html) [SiteGen Home PageAn automatic site index generator, used on this site.](SiteGen/index.html) [SlideProjector Home PageA program for organizing and displaying electronic images.](SlideProjector/index.html)
[Climbing (old version)Ascending against gravity, rope work and related topics.](climbing/index.html) [Quadcopter High Line RiggingUse a drone to rig a climbing line.](high_line_rigging/index.html) [Rope Climbing 101Ascending against gravity.](rope_climbing_101/index.html)
[00: Adventures in Ray TracingHow to create photo-realistic graphics using Pov-Ray and associated programs.](raytracing/index.html) [3D Particle BoxA three-dimensional particle physics playground.](particle_box/index.html) [3D Photosphere ViewerSelect and view local photospheres.](3DViewer/index.html) [AI Image GenerationI explain how AI is changing the worlds of art and photography.](AI_Image_Generation/index.html) [Binocular VisionHow to see in three dimensions.](binocular_vision/index.html) [Blender Distributed Network RenderingSpeed up Blender renders using networked machines.](python/blender_network_render/index.html) [Blender Graphics: Lenses and OpticsDesigning optical elements in the Blender graphics workshop](blender_graphics/index.html) [Blender Graphics: Make a PlanetA creative Blender graphics project](blender_make_a_planet/index.html) [Computer Aided DesignUse a computer to shape your world.](Computer_Aided_Design/index.html) [Photosphere GalleryAn introduction to quadcopter-based photospheres from Alaska, Canada and the Western U.S..](drones/photosphere_gallery.html) [Tracking the James Webb Space TelescopeLearn how computers imitate nature.](tracking_the_JWST/index.html) [YouTube Ad KillerDeal with YouTube's worst behaviors.](VLC_utility/index.html)
[A Virtual BirdAn intriguing application of modern technology.](drones/index.html) [Creating Drone Images and PanoramasA tutorial on drone-platform photographic techniques.](drones/drone_images.html) [Photosphere GalleryAn introduction to quadcopter-based photospheres from Alaska, Canada and the Western U.S..](drones/photosphere_gallery.html) [Photosphere ViewerAn index of photospheres and a spherical viewer.](drones/photosphere_viewer.html)
[EducationA debate with a reader on the topic of education.](reader_exchanges/education.html) [ExplanationA way to organize lengthy reader dialogues.](reader_exchanges/index.html) [Feedback to The Anti-Spam Home PageFeedback to The Anti-Spam Home Page](anti_spam/feedback_antispam.html) [Media StudiesA wide-ranging conversation about media studies, Asperger's and many other topics.](reader_exchanges/media_studies.html) [Miscellaneous TopicsShort exchanges on various subjects.](reader_exchanges/miscellaneous.html) [On EvilThinking deep and shallow.](reader_exchanges/on_evil.html) [OpticalRayTracer : FeedbackReader feedback about the OpticalRayTracer program.](OpticalRayTracer/feedback.html) [Reader Feedback to "What is Science?"Selected reader correspondence.](what_is_science/feedback.html) [Reader responses to "Is Mathematics a Science?"Reader responses to 'Is Mathematics a Science?'](is_math_a_science/feedback.html) [Reflections on CosmologyA discussion of the Big Bang and related issues.](reader_exchanges/cosmology.html) [Restoring Mars : FeedbackReader responses to the article Restoring Mars.](restoring_mars/feedback.html) [Selected Replies to "When Does it Become Murder?"Reader feedback for the article "When does it become murder?".](opinion/capital_punishment_feedback.html) [Selected Replies to "The Physics of Dark Energy"An exploration of a recent discovery in cosmology.](dark_energy/feedback.html) [Selected Replies to the article "On Believing"A discussion of religious belief](opinion/religion_feedback.html) [What Do You Have Against Women?A reader plays the gender card.](reader_exchanges/what_do_you_have_against_women.html)
[An Insider's PerspectiveA School Psychologist Speaks Out.](reader_exchanges/insider_perspective.html) [Asperger's By Proxy : FeedbackSelected Replies to "Asperger's by Proxy".](psychology/feedback2.html) [Authority in ScienceHow science differs from religion.](reader_exchanges/authority_in_science.html) [Autism is RealA Conversation with a Parent.](reader_exchanges/autism_is_real.html) [Building Science : FeedbackSelected Replies to "Building Science".](building_science/feedback.html) [Can Psychology Ever Become A Science?A student's inquiry.](reader_exchanges/can_psychology_become_a_science.html) [Children of Narcissus: Feedbackreader feedback for my article "Children of Narcissus".](ChildrenOfNarcissus/feedback.html) [Difficult ChoicesA conversation with a concerned parent.](reader_exchanges/difficult_choices.html) [Expertly DysfunctionalReflections on twisted parenthood.](reader_exchanges/expertly_dysfunctional.html) [ExplanationA way to organize lengthy reader dialogues.](reader_exchanges/index.html) [How Does It Feel?An inquiry about intelligence.](reader_exchanges/How_does_it_feel.html) [I know what science is!A discussion with someone ... who doesn't know what science is.](reader_exchanges/psycho_science.html) [Inappropriate TitleAnother psychologist weighs in on science and psychology.](reader_exchanges/inappropriate_title.html) [Is Psychology a Science? : FeedbackSelected replies to my article "Is Psychology a Science?".](psychology/feedback1.html) [Mental Health and EvolutionA discussion about practically everything.](reader_exchanges/mental_health_and_evolution.html) [Narcissism RevisitedA conversation about narcissism and self-esteem.](psychology/narcissism_revisited.html) [Not Fair!A struggle with Asperger's.](reader_exchanges/not_fair.html) [Psychology 101Another psychology student tries to assert psychology is a science.](reader_exchanges/psychology_101.html) [Psychology and Neuroscience : FeedbackSelected replies to my article "Psychology and Neuroscience".](psychology_and_neuroscience/reader_feedback.html) [Reader Feedback for "How to Raise the Asperger's Child"Readers respond to this article](psychology/aspergers_and_parenting_feedback.html) [Science of Mind: FeedbackReader responses to the article Science of Mind.](science_of_mind/feedback.html) [Selected Replies to "A Society of Victims"Selected Replies to "A Society of Victims".](psychology/feedback4.html) [Social Narcissism FeedbackReader discussions of the article "Social Narcissism".](opinion/social_narcissism_feedback.html) [The Myth of Mental Illness: FeedbackSelected Replies to "The Myth of Mental Illness".](psychology/myth_feedback.html) [The Narcissist Appreciation SocietyWho are these people and why are they invading my mailbox?](opinion/narcissist_appreciation_society.html) [The Scientific Paradigm : FeedbackReader responses to the article Scientific Paradigm.](scientific_paradigm/feedback.html) [The Trouble with Psychology : FeedbackSelected Replies to "The Trouble with Psychology".](trouble_with_psychology/feedback.html) [Yes, but ...A psychology undergraduate speaks out.](reader_exchanges/yes_but.html)
[Word GameMy free, open-source, no-time-limit Wordle clone.](wordgame/index.html)
[IcomControl Home PageIcomControl Home Page. A controller program for the Icom PCR1000.](icomcontrol/index.html) [IcomProgrammmer IIA Python resource for programming Icom radios.](IcomProgrammer/index.html) [JNXA Java Navtex marine weather receiver/converter.](JNX/index.html) [JRX: Virtual Ham RadioA virtual interface for many amateur radios.](JRX/index.html) [JWXA Java short-wave weatherfax receiver/converter.](JWX/index.html) [Morse CodeA treatise on an old, very reliable communication method.](morse_code/index.html) [PLSDRA powerful Python-based software-defined radio (SDR).](PLSDR/index.html) [Programming Icom RadiosA Ruby project that tells Icom radios what to do.](ruby/icom_radio_controller/index.html) [RadioComm Home PageAn Icom radio partner program.](radiocomm/index.html) [Sangean ATS-909XA rather nice portable shortwave radio.](Sangean_ATS-909X/index.html) [Simple 10 MHz Frequency StandardAn easy way to improve my signal generator's accuracy.](frequency_standard/index.html) [Software-Defined RadiosAn amazing intersection of mathematics, computer programming and radio.](software_defined_radios/index.html) [Software-Defined Radios IIAn updated account of the revolution in computer-aided radio reception.](software_defined_radios_II/index.html)
[Home AutomationHow to control your house with a computer.](home_automation/index.html) [Intel NUCA new kind of computer.](intel_nuc/index.html) [Router ProgrammerHow to automate router configuration using the router's Web interface.](router_programmer/index.html) [Sangean ATS-909XA rather nice portable shortwave radio.](Sangean_ATS-909X/index.html) [Simple 10 MHz Frequency StandardAn easy way to improve my signal generator's accuracy.](frequency_standard/index.html) [USB Power IssuesHow to reliably power your USB peripherals.](usb_power/index.html)
[Are You Overweight?Are You Overweight? Online, interactive JavaScript application.](lutusp/weight.html) [ASCII Character SetA comprehensive list of ASCII character codes](javascript/ascii.html) [Big Digital ClockA precise, convenient clock display.](NaturalResources/big_clock.html) [BiQuadDesignerA rewritten Java/JavaScript biquadratic filter designer.](BiQuadDesigner/index.html) [Consumer Loan CalculatorAn interactive consumer-oriented loan evaluation tool.](consumer_loan_calculator/index.html) [Finance CalculatorAn interactive JavaScript financial calculator.](finance/index.html) [FreeMapA free, mobile-friendly, open-source dynamic map application.](FreeMap/index.html) [Graphinity OnlineAn online graphing resource written in JavaScript.](graphinity_online/index.html) [Interactive JavaScript ProgrammingA demonstration of real-time programming](javascript/interactiveJavaScript.html) [JavaScript Signal Generator / Spectrum AnalyzerA JavaScript-based signal generation / analysis utility.](SigGen/index.html) [Mandelbrot SetAn exploration in pure mathematics.](mandelbrot_set/index.html) [New World ClockJavaScript World Clock. 24 simultaneous time zones updated in real time.](lutusp/worldclock.html) [Number Base ConversionsA calculator for converting between number bases](javascript/baseconversions.html) [Polygon CalculatorAn online application that computes common values for regular polygons.](polygon_calculator/index.html) [QuoterA JavaScript quotation generator applet, useful as a Web page component, recently rewritten.](quoter/index.html) [Regular Expression LaboratoryAn interactive JavaScript regular expression processing engine.](regex_lab/index.html) [Snell's Law CalculatorA convenient JavaScript calculator for Snell's Law results.](OpticalRayTracer/snells_law_calculator.html) [Solar ComputerA recently updated, interactive JavaScript application that computes sunrise/sunset/day length for any location on Earth.](lutusp/sunrise/index.html) [Unicode Character SearchAn easy-to-use Unicode character search page including emojis.](unicode/index.html) [Unit ConversionsA comprehensive, interactive JavaScript unit conversion utility.](lutusp/conversions.html) [Virtual CalculatorVirtual Calculator — interactive JavaScript application](lutusp/calculator.html)
[Adventures in NetworkingPart history, part tutorial, all interesting.](adventures_in_networking/index.html) [Bash Script Beautifier (Ruby)A beautifier for Bash shell scripts written in Ruby.](linux/beautify_bash/index.html) [Bash Shell Programming in LinuxHow to write labor-saving shell scripts in Linux.](linux/shell_programming.html) [Consistent Network Device NamingAnother Linux kernel conceptual breakthrough (and how to repair it).](linux/network_names/index.html) [Controlling NetworkManagerGetting along with an important Linux utility.](linux/NetworkManager/index.html) [Dictionary access under LinuxA how-to for Linux dictionary server/client setup and configuration.](linux/dictionary.html) [Dictionary front end using PHPA handy PHP-based dictionary access method.](linux/dict.php.html) [Hacking the Nokia N810How to bring the Nokia N810 under your control.](linux/nokia/index.html) [How to Use Secure ShellModern methods to copy, archive and communicate.](SecureShell/index.html) [Intel NUCA new kind of computer.](intel_nuc/index.html) [Linux BaseAn introduction to Linux, including some history.](linux/index.html) [Linux on AndroidHow to run a desktop Linux distribution on an Android device.](android/LinuxOnAndroid/index.html) [Mobile Internet Access Using LinuxConfiguring a cell phone to work as an Internet data modem.](linux/linux_mobile_internet_access.html) [Modeline CalculatorAn essential tool for configuring certain displays.](modelines/index.html) [Router ProgrammerHow to automate router configuration using the router's Web interface.](router_programmer/index.html) [Running Fedora Linux on Dell LaptopsAccomodating some recent kernel regressions.](linux/dell_laptops_on_fedora.html) [Secure Shell Fun and GamesUsing secure-shell transactions to improve security.](linux/linux_secure_shell_fun_and_games.html) [Wireshark FolliesNetwork monitoring for fun and profit.](wireshark/index.html)
[3\. Tides and Currents in Channels and BaysThe article set for the 2013 Alaska expedition.](alaska2013/tides_in_bays.html) [Binomial ProbabilityAn interactive exposition of a key probability method.](binomial_probability/index.html) [Consumer Loan CalculatorAn interactive consumer-oriented loan evaluation tool.](consumer_loan_calculator/index.html) [Coronavirus MathUsing Calculus to analyze a pandemic](coronavirus_equation/index.html) [Equities MythsThings you should know about investing.](equities_myths/index.html) [Exploring Mathematics with SageA free, open-source mathematical workshop.](sage/index.html) [Finance CalculatorAn interactive JavaScript financial calculator.](finance/index.html) [Introduction to CalculusA carefully worded overview of calculus for nonspecialists and the simply curious.](calculus/index.html) [Introduction to JupyterInstalling and using the multi-language Jupyter notebook environment.](jupyter/index.html) [Introduction to StatisticsA practicum for statistical analysis.](NormalDistribution/index.html) [LaTeX EditorAn interactive tool for math publishing.](latex/index.html) [Orbital DynamicsA comprehensive JavaScript/Canvas orbital physics model.](orbital_dynamics/index.html) [Polynomial Regression Data FitA polynomial regression data fit application with some technical background.](polysolve/index.html) [Prime NumbersExploring a unique class of numbers.](prime_numbers/index.html) [Software-Defined RadiosAn amazing intersection of mathematics, computer programming and radio.](software_defined_radios/index.html) [Software-Defined Radios IIAn updated account of the revolution in computer-aided radio reception.](software_defined_radios_II/index.html) [The Mathematics of Population IncreaseThe Mathematics of Population Increase. Equations, examples, speech about overpopulation.](lutusp/populati.html) [The Physics Behind Stopping a CarIncludes an explanation, equations, and a calculator — recently updated.](braking_physics/index.html) [Unit ConversionsA comprehensive, interactive JavaScript unit conversion utility.](lutusp/conversions.html)
[Alaska ImagesRecent photographs from my Alaska cruises.](photogallery/index.php) [Did Earth's Life Originate on Mars?A speculative slide set on a topic that is still controversial.](lutusp/marstalk/index.html) [ScienceA graphic slide set on the topic of science.](lutusp/science/index.html) [TeleprompterA Web-based user-configurable teleprompter application.](teleprompter/index.html) [Teleprompter OnlineAn updated version of the teleprompter display.](teleprompteronline/index.html) [The Idea MarketplaceA graphic slide set that discusses how ideas are processed and marketed.](lutusp/idea_market/index.html) [World SailA media overview of my circumnavigation, 1988-1991.](photogallery/world_sail.php)
[DBClientA Python/GTK MySQL database management tool.](python/DBClient/index.html) [JDBClientA Java-based MySQL database management tool.](JDBClient/index.html) [JSQLiteClientA Java-based SQLite database management tool.](JSQLiteClient/index.html) [Library DatabaseAn efficient Android-scanned library database.](LibraryDB/index.html) [MySQL Tutorial 1: Overview, Tables, QueriesGetting to know the MySQL database engine.](MySQL/index.html) [MySQL Tutorial 2: Views and JoinsGetting to know the MySQL database engine.](MySQL/views_joins.html) [MySQL Tutorial 3: Triggers and AutomationGetting to know the MySQL database engine.](MySQL/triggers_automation.html) [MySQL Tutorial 4: Relational DatabasesHow to build a modern database.](MySQL/relational_databases.html) [MySQL Tutorial 5: SQL ExamplesAn index of useful SQL commands.](MySQL/SQL_examples.html)
[Big Digital ClockA precise, convenient clock display.](NaturalResources/big_clock.html) [FreeMapA free, mobile-friendly, open-source dynamic map application.](FreeMap/index.html) [JNXA Java Navtex marine weather receiver/converter.](JNX/index.html) [JWXA Java short-wave weatherfax receiver/converter.](JWX/index.html) [Lake Havasu Water LevelsLake Havasu water levels, using an Internet data source.](NaturalResources/havasu.html) [Lake Mead Water LevelsLake Mead Water Levels, using an Internet data source.](NaturalResources/index.html) [Lake Mojave Water LevelsLake Mohave water levels, using an Internet data source.](NaturalResources/mohave.html) [Lake Powell Water LevelsLake Powell water levels, using an Internet data source.](NaturalResources/powell.html) [New World ClockJavaScript World Clock. 24 simultaneous time zones updated in real time.](lutusp/worldclock.html) [Satellite Finder Home PageA satellite locator and dish alignment program.](satfinder/index.html) [Satellite Finder Online (JavaScript)A Web-based geostationary satellite locator.](satfinderonline/index.html) [Satellite Finder Online (PHP)A Web-based geostationary satellite locator.](satfinderonline/satfinderphp.php) [Solar ComputerA recently updated, interactive JavaScript application that computes sunrise/sunset/day length for any location on Earth.](lutusp/sunrise/index.html)
[A Note about FreewareAn explanation — more of a lecture, actually — about freeware.](freeware/index.html) [Computer mathArticle: Computer math — a description of the changes in math training and practice brought about by the computer.](lutusp/computermath.html) [Consumer AngstA somewhat tart analysis of consumerism.](lutusp/consumerangst.html) [Creative Problem-SolvingArticle: Creative problem-solving. Practical advice with some real-world examples.](lutusp/crashcourse.html) [Did Earth's Life Originate on Mars?Article: Did Earth's Life Originate on Mars? A scientific speculation on this theory, discusses related issues.](lutusp/mars.html) [How we confuse symbols and thingsThis article discusses some educational and general social aspects of western society.](lutusp/symbols.html) [Interview with an ExtraterrestrialA very hypothetical conversation with a visitor from afar.](lutusp/alien.html) [The Anti-Spam Home PageAn updated history of spam and spammers, analysis, suggestions for remedies.](lutusp/antispam.html) [The Internet Free Zone Home PageThe Internet Free Zone Home Page.](freezone/index.html) [The Magic Looking GlassArticle: The Magic Looking Glass. Discusses developments in virtual reality.](lutusp/virtreal.html) [Why are computers so hard to use?Article: Why are computers so hard to use? Discusses history, current technology, consequences.](lutusp/whycomp.html)
[BumperstickersA collection of what once were called quotations.](opinion/bumperstickers.html) [For Example ...An article in which I mourn the untimely passing of the example.](example/index.html) [Networks Of SleazeAn analysis of online advertising, including a true, first-person account by a victim of online fraud.](opinion/networksofsleaze.html) [On BelievingA comprehensive study of religious belief.](opinion/religion.html) [Reciprocal LinkingA detailed look at yet another sleazy Internet practice.](opinion/reciprocal_linking.html) [Social NarcissismThe variety and persistence of human self-deception.](opinion/social_narcissism.html) [The Artificial WombIf you didn't see this coming, you haven't been paying attention.](artificial_womb/index.html) [The Narcissist Appreciation SocietyWho are these people and why are they invading my mailbox?](opinion/narcissist_appreciation_society.html) [The Right to ChooseThe path to gender equality.](right_to_choose/index.html) [TransitionsReflections on a life of change.](transitions/index.html) [When Does it Become Murder?An analysis of capital punishment.](opinion/capital_punishment.html) [Why don't books have advertising?A discussion of bound books as a last holdout in a world filled with advertising.](opinion/books_advertising.html) [Words and their MeaningsHow to decode political speech.](opinion/words.html)
[Mars PhotosphereA high-resolution photosphere image of Mars.](mars_photosphere/index.html) [Restoring MarsA strategy to prepare Mars for human colonization.](restoring_mars/index.html) [Restoring Mars : FeedbackReader responses to the article Restoring Mars.](restoring_mars/feedback.html) [Tracking the James Webb Space TelescopeLearn how computers imitate nature.](tracking_the_JWST/index.html)
[AboutTime Home PageAboutTime Home Page. A very accurate Internet time server/client.](abouttime/index.html) [C++ TutorialA basic tutorial for the C++ computer language.](cpptutor/index.html) [DataProspectorA flexible program for accessing and modifying databases.](DataProspector/index.html) [Electric DuetA classic Apple \]\[ program that performed music in two voices.](electric_duet/index.html) [General FAQFrequently asked questions, mostly about HTML development.](generalfaq/index.html) [Home Assistant / Insteon RescueHow to configure Home Assistant and survive Insteon's collapse.](insteon_rescue/index.html) [Home AutomationHow to control your house with a computer.](home_automation/index.html) [HTML for the Conceptually ChallengedA very basic tutorial, plainly worded, for people who hate to read instructions.](lutusp/html_tutor.html) [I Dumped InsteonI realized it was time to face reality.](i_dumped_insteon/index.html) [New World ClockJavaScript World Clock. 24 simultaneous time zones updated in real time.](lutusp/worldclock.html) [Orbital DynamicsA comprehensive JavaScript/Canvas orbital physics model.](orbital_dynamics/index.html) [Programming Handheld CalculatorsA reminiscence about programming in the era before personal computers.](programmable_calculators/index.html) [Regular Expression LaboratoryAn interactive JavaScript regular expression processing engine.](regex_lab/index.html) [Software-Defined RadiosAn amazing intersection of mathematics, computer programming and radio.](software_defined_radios/index.html) [Software-Defined Radios IIAn updated account of the revolution in computer-aided radio reception.](software_defined_radios_II/index.html) [Speak & SearchA Web search interface based on voice input.](speak_and_search/index.html) [Speech to TextAn online tool that converts spoken words to text.](speech_to_text/index.html) [The CareWare IdeaThe CareWare Idea — a description of the CareWare philosophy and transaction.](careware/index.html) [Understanding Phase-Locked LoopsAn in-depth look at a fascinating technique.](phase_locked_loop/index.html) [Wireshark FolliesNetwork monitoring for fun and profit.](wireshark/index.html)
[A Society of VictimsAn instruction manual in creative self-victimization.](psychology/victimhood.php) [An Insider's PerspectiveA School Psychologist Speaks Out.](reader_exchanges/insider_perspective.html) [Asperger's By ProxyA completely rewritten essay on Asperger's and related issues.](psychology/aspergers.html) [Authority in ScienceHow science differs from religion.](reader_exchanges/authority_in_science.html) [Autism is RealA Conversation with a Parent.](reader_exchanges/autism_is_real.html) [Building ScienceOn the architecture of modern science.](building_science/index.html) [Can Psychology Ever Become A Science?A student's inquiry.](reader_exchanges/can_psychology_become_a_science.html) [Children of NarcissusAn evolutionary analysis of narcissism.](ChildrenOfNarcissus/index.html) [Expertly DysfunctionalReflections on twisted parenthood.](reader_exchanges/expertly_dysfunctional.html) [How Does It Feel?An inquiry about intelligence.](reader_exchanges/How_does_it_feel.html) [How to Raise the Asperger's ChildNo magic, just common sense.](psychology/aspergers_and_parenting.html) [I know what science is!A discussion with someone ... who doesn't know what science is.](reader_exchanges/psycho_science.html) [Inappropriate TitleAnother psychologist weighs in on science and psychology.](reader_exchanges/inappropriate_title.html) [Narcissism RevisitedA conversation about narcissism and self-esteem.](psychology/narcissism_revisited.html) [No Theory, No ScienceA critique of modern psychology.](no_theory_no_science/index.html) [Not Fair!A struggle with Asperger's.](reader_exchanges/not_fair.html) [On Being PerfectAn analysis of narcissism and narcissists, with some real-world examples.](psychology/narcissism.php) [Psychology and NeuroscienceOn the transition from psychology to neuroscience.](psychology_and_neuroscience/index.html) [Reddit: Psychology is a science!Reddit's effort to censor psychology's critics.](psychology/reddit_psychology.html) [Science Litmus TestAn easy, intuitive way to evaluate a field's scientific standing.](science_litmus_test/index.html) [Science of MindPsychological study and practice, past and present.](science_of_mind/index.html) [The Doubt FactoryThe proper role of science.](doubt/index.html) [The Myth of Mental IllnessThe evidence-based revolution in psychology.](psychology/myth.html) [The Scientific ParadigmAn essay on the structure of science and pseudoscience.](scientific_paradigm/index.html) [The Trouble with PsychologySerious obstacles hinder a scientific study of the mind.](trouble_with_psychology/index.html)
[Bash Script Beautifier (Python)A beautifier for Bash shell scripts written in Python.](python/beautify_bash_program.html) [Blender Distributed Network RenderingSpeed up Blender renders using networked machines.](python/blender_network_render/index.html) [DBClientA Python/GTK MySQL database management tool.](python/DBClient/index.html) [GnuCash UtilitiesPython utility programs for use with GnuCash.](gnucash_utilities/index.html) [Introduction to JupyterInstalling and using the multi-language Jupyter notebook environment.](jupyter/index.html) [IPython: Math ProcessorA tool that manipulates mathematics as a word processor manipulates words.](IPython/index.html) [Library DatabaseAn efficient Android-scanned library database.](LibraryDB/index.html) [PLSDRA powerful Python-based software-defined radio (SDR).](PLSDR/index.html) [PodcastRetrieverAn efficient way to manage podcasts for offline use.](python/PodcastRetriever/index.html) [PolyRegressA Python polynomial regression analysis application.](python/polyregress_program.html) [PyBeautifyA Python source code cleanup utility.](python/pybeautify_program.html) [PythonExploring and using the Python computer language, with examples and applications.](python/index.html) [Router ProgrammerHow to automate router configuration using the router's Web interface.](router_programmer/index.html) [RPNCalcAn RPN calculator in Python.](python/RPNCalc_program.html) [SearchReplaceGlobalPyA tool for applying regular expressions to large groups of files.](python/searchReplaceGlobal/index.html) [SerialTerminalA Python Serial interface terminal.](SerialTerminal/index.html) [SignalGenA Python / GStreamer based signal generator.](python/signalgen_program.html) [WeatherReaderA Python weatherfax receiver/converter.](python/weatherreader/index.html)
[Raspberry PiA tiny computer, a big idea.](raspberry_pi/index.html) [Raspberry Pi Remote ControlUse a Raspberry Pi computer to remotely control electrical devices.](raspberry_pi_remote/index.html) [Wireshark FolliesNetwork monitoring for fun and profit.](wireshark/index.html)
[/ Confessions OnlineThe online version of "Confessions of a Long-Distance Sailor". This is a free e-book that describes my four-year solo sail around the world.](sailbook/index.html) [Alaska 2002The article set for the 2002 Alaska expedition.](alaska2002/index.html) [Alaska 2003The article set for the 2003 Alaska expedition.](alaska2003/index.html) [Alaska 2004The article set for the 2004 Alaska expedition.](alaska2004/index.html) [Alaska 2005The article set for the 2005 Alaska expedition.](alaska2005/index.html) [Alaska 2006The article set for the 2006 Alaska expedition.](alaska2006/index.html) [Alaska 2007The article set for the 2007 Alaska expedition.](alaska2007/index.html) [Alaska 2008The article set for the 2008 Alaska expedition.](alaska2008/index.html) [Alaska 2009The article set for the 2009 Alaska expedition.](alaska2009/index.html) [Alaska 2010The article set for the 2010 Alaska expedition.](alaska2010/index.html) [Alaska 2011The article set for the 2011 Alaska expedition.](alaska2011/index.html) [Alaska 2012The article set for the 2012 Alaska expedition.](alaska2012/index.html) [Alaska 2013The article set for the 2013 Alaska expedition.](alaska2013/index.html) [Alaska 2014The article set for the 2014 Alaska expedition.](alaska2014/index.html) [Alaska 2015The article set for the 2015 Alaska expedition.](alaska2015/index.html) [Alaska 2016The article set for the 2016 Alaska expedition.](alaska2016/index.html) [Alaska 2017The article set for the 2017 Alaska expedition.](alaska2017/index.html) [Alaska 2018The article set for the 2018 Alaska expedition.](alaska2018/index.html) [Eclectic NavigationA discussion of modern navigation methods.](navigation/index.html) [Rope Climbing 101Ascending against gravity.](rope_climbing_101/index.html)
[Controlling NetworkManagerGetting along with an important Linux utility.](linux/NetworkManager/index.html) [Creating Music Playlists with RubyA music collection organizer written in Ruby.](ruby/playlists/index.html) [Encountering RubyThe Ruby programming language. A summary with operating hints and programming issues.](ruby/index.html) [Graphinity: Graphing in DepthA Ruby graphing and analysis program, recently rewritten.](ruby/graphinity/index.html) [Modeling Gravity with RubyRuby Gravitation. A Ruby program that models gravitation in real-time, as well as an article describing the physics of gravitation and computer modeling.](ruby/gravity/index.html) [Programming Icom RadiosA Ruby project that tells Icom radios what to do.](ruby/icom_radio_controller/index.html) [Round Container Corners using Pure CSSA Ruby script that creates round corners using pure CSS methods.](ruby/round_css_corners/index.html) [Round Table Corners using GraphicsA Ruby application to create round HTML table corners.](ruby/roundTableCorners.html) [Ruby Howto: Graphical User InterfaceHow to design a GUI interface for your Ruby program..](ruby/RubyGUIProject/index.html) [Ruby Script BeautifierA beautifier for Ruby source files ... written in Ruby.](ruby/rubyBeautifier.html) [SearchReplaceGlobalA tool for applying a regular expression to large groups of files.](ruby/searchReplaceGlobal/index.html) [The GPSMap ProjectA method to link your GPS receiver to Google Maps and Google Earth.](ruby/gpsmap/index.html)
[3D Particle BoxA three-dimensional particle physics playground.](particle_box/index.html) [AnswersAnswers to common questions from social news forums.](answers/index.html) [Eclipse 2017A spectacular celestial event.](eclipse_2017/index.html) [EvolutionWhat we can learn from biology's most important theory.](evolution/index.html) [Gravitation Description and EquationsA collection of gravitational resources.](gravitation_equations/index.html) [Gravity and EnergyExploring the interplay of gravity and mass-energy.](gravity/index.html) [OpticalRayTracer Home PageA completely rewritten virtual lens/mirror design workshop.](OpticalRayTracer/index.html) [Orbital DynamicsA comprehensive JavaScript/Canvas orbital physics model.](orbital_dynamics/index.html) [Peak PeopleRemember the expression "peak oil"? A similar apex — and descent — may define our future.](peak_people/index.html) [Physics / Conservation of EnergyAn exposition on a principle of physics, and of science.](conservation_of_energy/index.html) [Physics / RelativityA concise relativity tutorial.](relativity/index.html) [Science Litmus TestAn easy, intuitive way to evaluate a field's scientific standing.](science_litmus_test/index.html) [Snell's Law CalculatorA convenient JavaScript calculator for Snell's Law results.](OpticalRayTracer/snells_law_calculator.html) [The Doubt FactoryThe proper role of science.](doubt/index.html) [The Physics Behind Stopping a CarIncludes an explanation, equations, and a calculator — recently updated.](braking_physics/index.html) [The Physics of Dark EnergyAn exploration of a recent discovery in cosmology.](dark_energy/index.html) [Tracking the James Webb Space TelescopeLearn how computers imitate nature.](tracking_the_JWST/index.html) [Unicode Character SearchAn easy-to-use Unicode character search page including emojis.](unicode/index.html) [What is Science?An earnest exposition.](what_is_science/index.html) [Why Science Needs TheoriesTheories set science apart from stamp collecting.](theory/index.html)
[Sloped Bottom TankAnother special-shape storage tank.](tank_slope_bottom/index.html) [Storage Container MathematicsAn exposition on storage container analysis.](storage_container_mathematics/index.html) [Storage Tank ProfilingApproaches to managing storage tanks.](tank_profiling/index.html) [TankCalcA comprehensive storage tank analyzer.](TankCalc/index.html) [TankFlowA powerful flow-based storage tank analyzer.](TankFlow/index.html) [TankProfilerA Python dimension-profile storage tank analyzer.](TankProfiler/index.html) [TankProfiler Case HistoryAnalyzing and modeling a real-world tank with an odd shape.](TankProfiler/case_history.html) [TankSteppedA special-case analyzer for large storage tanks.](TankCalc/TankStepped.html) [Trapezoidal Storage TanksTanks with sides that are straight but not parallel.](TankCalc/trapezoidal_tanks.html) [User inquiries about TankCalcCommon questions about tank volume computation.](TankCalc/inquiries.html) [Volumes In DepthAn in-depth look at storage tank volume measurement.](TankCalc/volumes_in_depth.html)
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