{"id":470,"date":"2023-06-21T22:00:56","date_gmt":"2023-06-22T05:00:56","guid":{"rendered":"https:\/\/dornsife.usc.edu\/sergey-lototsky\/?page_id=470"},"modified":"2026-04-26T13:00:50","modified_gmt":"2026-04-26T20:00:50","slug":"general-interest","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/sergey-lototsky\/general-interest\/","title":{"rendered":"General Interest"},"content":{"rendered":"\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <h2><strong>My notes<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Exams-HypTest.png\" target=\"_blank\" rel=\"noopener\">Statistical approach to creating and grading exams<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/MusicMath.pdf\" target=\"_blank\" rel=\"noopener\">Some mathematics in music<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/MathSoundsOfMusic.pdf\" target=\"_blank\" rel=\"noopener\">An orchestra as a collection of boundary value problems<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/LadderTheorem.pdf\" target=\"_blank\" rel=\"noopener\">The Ladder Theorem and beyond<\/a> (&#8220;elementary&#8221; geometry)<\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/05\/FundTheorems.pdf\" target=\"_blank\" rel=\"noopener\">Fundamental Theorems of Various Branches of Mathematics<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/GammaBetaFunctions.pdf\" target=\"_blank\" rel=\"noopener\">Gamma and Beta functions<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/AsymptotIntegration.pdf\" target=\"_blank\" rel=\"noopener\">Asymptotic integration<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/01\/Distributions-Connections.pdf\" target=\"_blank\" rel=\"noopener\">Exact relations among probability distributions<\/a><\/li>\n<\/ul>\n<h2><strong>Math notes by other people<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/ApplicationsOfLambertW-KnuthAtAl.pdf\" target=\"_blank\" rel=\"noopener\">Lambert&#8217;s W function<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/02\/Stirling-Robbins.pdf\" target=\"_blank\" rel=\"noopener\">Stirling with upper and lower bounds<\/a><\/li>\n<li>About planimeters: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/HowPlanimetersWork-WabashCollege.pdf\" target=\"_blank\" rel=\"noopener\">a summary<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/APlethoraOfPlanimeters.pdf\" target=\"_blank\" rel=\"noopener\">pictures<\/a>, detailed pictures: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/Polar.gif\" target=\"_blank\" rel=\"noopener\">polar<\/a> and <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/Linear.gif\" target=\"_blank\" rel=\"noopener\">linear<\/a>,\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/PolarAnimation.gif\" target=\"_blank\" rel=\"noopener\">polar: animation<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/AreaDiffThm.gif\" target=\"_blank\" rel=\"noopener\">Animation<\/a> of the Moving Segment\/Area Difference Theorem, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/A-Closer-Look-at-the-Compensating-Polar-Planimeter.pdf\" target=\"_blank\" rel=\"noopener\">math paper<\/a><\/li>\n<\/ul>\n<h2><strong>Pictures<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/01\/Motivation2.pdf\" target=\"_blank\" rel=\"noopener\">For experts only<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Bernoulli_triangle_columns.png\" target=\"_blank\" rel=\"noopener\">When the obvious pattern breaks: the Bernoulli triangle<\/a> and the <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Dividing-a-circle-into-areas.pdf\" target=\"_blank\" rel=\"noopener\">related math story<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/LSAT-Scores.webp\" target=\"_blank\" rel=\"noopener\">When the test scores are normally distributed<\/a>\u00a0 but <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/12\/Teacher-t_distribution.jpg\" target=\"_blank\" rel=\"noopener\">this is another option<\/a><\/li>\n<li>Physics can be <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/ExpandedMaxwellEqns.jpg\" target=\"_blank\" rel=\"noopener\">bad<\/a> or <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Physics-StandardModelLagrangian.webp\" target=\"_blank\" rel=\"noopener\">worse<\/a> or\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/StandardModel-Short.webp\" target=\"_blank\" rel=\"noopener\">better<\/a> or even <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/maxwell-vect.png\" target=\"_blank\" rel=\"noopener\">clear<\/a><\/li>\n<li>Physicists <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/QuantumField.pdf\" target=\"_blank\" rel=\"noopener\">can<\/a> also\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Disclaimer.pdf\" target=\"_blank\" rel=\"noopener\">joke<\/a> or <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2026\/04\/PhysicsLecture.jpg\" target=\"_blank\" rel=\"noopener\">not<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/OptionalMaterial.jpg\" target=\"_blank\" rel=\"noopener\">No optional material<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/OnHandwriting.pdf\" target=\"_blank\" rel=\"noopener\">On handwriting<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/GreekLetters.pdf\" target=\"_blank\" rel=\"noopener\">How to write Greek letters<\/a> (by <a href=\"https:\/\/home.csulb.edu\/~okoroste\/\" target=\"_blank\" rel=\"noopener\">Olga Korosteleva<\/a>, CSULB)<\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/SumOfSquares.jpg\" target=\"_blank\" rel=\"noopener\">1^2+2^2+&#8230;+n^2=n(n+1)(2n+1)\/6<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/SumOfCubes.pdf\" target=\"_blank\" rel=\"noopener\">1^3+2^3+&#8230;+n^3=(1+2+&#8230;+n)^2<\/a><\/li>\n<li>Study of prime numbers: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/PrimeNumbersFormula.png\" target=\"_blank\" rel=\"noopener\">When an explicit formula does not help<\/a> so you need a <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/RH-pic.png\" target=\"_blank\" rel=\"noopener\">joke<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Sant_Antoni-Spain-ColumbusEgg.jpg\" target=\"_blank\" rel=\"noopener\">An egg?<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Archimedes-vs-Log-Spiral.jpg\" target=\"_blank\" rel=\"noopener\">Two spirals<\/a>; Jakob Bernoulli <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/JakobBernoulli-grave.jpg\" target=\"_blank\" rel=\"noopener\">ended up with the wrong one<\/a>!<\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/StrictLocalMartingale.png\" target=\"_blank\" rel=\"noopener\">When a strict local martingale hits in the wallet<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/FamousMathPic-WaterWave.jpg\" target=\"_blank\" rel=\"noopener\">The famous picture of water mechanics<\/a>\u00a0 and <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/Wave.webp\" target=\"_blank\" rel=\"noopener\">modern animation<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/WaterWaveAngle-KelvinWavePattern.jpg\" target=\"_blank\" rel=\"noopener\">The complicated math behind a boat<\/a><\/li>\n<li>Some quantum mechanics: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/Schrdinger-s-Bridge-HariBooker-2017.jpg\" target=\"_blank\" rel=\"noopener\">artwork<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/UncertainlySign.png\" target=\"_blank\" rel=\"noopener\">confusion<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/SchrodingerPlates.jpg\" target=\"_blank\" rel=\"noopener\">real life<\/a>,\u00a0<a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/07\/AllSchrodinger.pdf\" target=\"_blank\" rel=\"noopener\">About Schrodinger and his cat<\/a><\/li>\n<li>Some math in popular culture: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/MathInRealLife.jpg\" target=\"_blank\" rel=\"noopener\">SpongeBob<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/MathJoke2.jpg\" target=\"_blank\" rel=\"noopener\">Simpsons<\/a>, \u00a0 Maxwell in <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/03\/Maxwell-tshirt-vacuum.jpg.png\" target=\"_blank\" rel=\"noopener\">vacuum<\/a> and <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/03\/Maxwell-tshirt.jpg\" target=\"_blank\" rel=\"noopener\">medium<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/06\/MIT.png\" target=\"_blank\" rel=\"noopener\">the famous school<\/a><\/li>\n<li>Careful with calculators: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/RoundOffError.jpg\" target=\"_blank\" rel=\"noopener\">Round-off error1<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/11\/AnotherSimpsonsMath.jpg\" target=\"_blank\" rel=\"noopener\">Round-off error2<\/a><\/li>\n<li>Random structures in real life. Gaussian Fields: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/GFF-nature.jpg\" target=\"_blank\" rel=\"noopener\">Ice Cave<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/12\/TsingydeBemarahaStrictNatureReserve-Madagascar.jpg\" target=\"_blank\" rel=\"noopener\">Stones-1<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/12\/Tsingy-de-Bemaraha-Madagascar.jpg\" target=\"_blank\" rel=\"noopener\">Stones-2<\/a>; Corner growth: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/CornerGrowth1.jpg\" target=\"_blank\" rel=\"noopener\">Iceland beach<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/CornerGrowth4-Ireland.jpg\" target=\"_blank\" rel=\"noopener\">Ireland beach<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/CornerGrowth4-Armenia.jpg\" target=\"_blank\" rel=\"noopener\">Armenian mountains<\/a>; Poisson point process:\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/10\/PoissonRandomMeasure.jpg\" target=\"_blank\" rel=\"noopener\"><span class=\"mw-mmv-title\">Chewing gum on a sidewalk in Reykjav\u00edk<\/span><\/a><\/li>\n<\/ul>\n<h2><strong>Music-inspired topics<\/strong><\/h2>\n<ul>\n<li>What would you rather play: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/MusicJoke.jpg\" target=\"_blank\" rel=\"noopener\">this<\/a> or <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/SightReading.pdf\" target=\"_blank\" rel=\"noopener\">this<\/a> and <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/MultipleHands.pdf\" target=\"_blank\" rel=\"noopener\">this<\/a>?<\/li>\n<li>What would you do with <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/06\/MzPc24-3.png\" target=\"_blank\" rel=\"noopener\">this<\/a> tune? <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/06\/MzPc24-3.mp3\" target=\"_blank\" rel=\"noopener\">The sound<\/a>. <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/06\/WalterGieseking-PhilarmOrch-HerbertVonKarajan-rec1973.mp3\" target=\"_blank\" rel=\"noopener\">THE answer<\/a> and an <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/06\/Ashkenazi-Chicago-Solti.mp3\" target=\"_blank\" rel=\"noopener\">alternative<\/a>.<\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/LP.png\" target=\"_blank\" rel=\"noopener\">A different musical challenge<\/a> \u00a0 \u00a0 \u00a0\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/LPGrooves.jpg\" target=\"_blank\" rel=\"noopener\">Close-up<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/Gramophone.png\" target=\"_blank\" rel=\"noopener\">Gramophone<\/a> \u00a0 \u00a0 \u00a0\u00a0 <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/LPGrooves.jpg\" target=\"_blank\" rel=\"noopener\">Close-up<\/a><\/li>\n<li>Multi-scale phenomena: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/11\/MultiscaleMaterial.pdf\" target=\"_blank\" rel=\"noopener\">materials<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/11\/MultiScaleMusic.pdf\" target=\"_blank\" rel=\"noopener\">music<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/AMS-Beethoven-Metronome.pdf\" target=\"_blank\" rel=\"noopener\">Math and Music (and Physics and History)<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/ClassicalMusic-Study.pdf\" target=\"_blank\" rel=\"noopener\">Classical music to the rescue\u00a0<\/a> [study help?]<\/li>\n<\/ul>\n<h2><strong>Other notes by other people<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/StudyLikeFeynman.pdf\" target=\"_blank\" rel=\"noopener\">How to study like Richard Feynman<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/06\/G-C-Rota-On-Math.pdf\" target=\"_blank\" rel=\"noopener\">An essay about mathematics by G.-C. Rota<\/a><\/li>\n<\/ul>\n<h2><strong>Puzzles<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/07\/ReadAndCount.jpg\" target=\"_blank\" rel=\"noopener\">Read and count<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/NumberPattern-Joke.png\" target=\"_blank\" rel=\"noopener\">Grade K level<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/IQ-question-ContinTable.jpg\" target=\"_blank\" rel=\"noopener\">Contingency table<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/04\/TimePuzzles-Motivation.pdf\" target=\"_blank\" rel=\"noopener\">Meaning of time<\/a><\/li>\n<li>Impossible problem: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/ImpssibleProblem6vs9.webp\" target=\"_blank\" rel=\"noopener\">version 1<\/a>\u00a0 [with a <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2024\/01\/NumberPuzzle-1.jpg\" target=\"_blank\" rel=\"noopener\">hint<\/a>], <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/07\/AnotherVersionOfImpossibleProblem.jpg\" target=\"_blank\" rel=\"noopener\">version 2<\/a><\/li>\n<li>Good notations make a difference: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/5Sinxoverxdx.png\" target=\"_blank\" rel=\"noopener\">question<\/a> and <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/5piover2.png\" target=\"_blank\" rel=\"noopener\">answer<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/HowDangerousIsThis.jpg\" target=\"_blank\" rel=\"noopener\">How dangerous is this?<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/ManualTransmission-question.jpg\" target=\"_blank\" rel=\"noopener\">What comes next?<\/a> <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/ManualTransmission-answer-scaled.jpg\" target=\"_blank\" rel=\"noopener\">Can you drive it?<\/a> <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/ParkingNumberPuzzle.jpg\" target=\"_blank\" rel=\"noopener\">Where did you park?<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/08\/MathEconPuzzle.webp\" target=\"_blank\" rel=\"noopener\">Math, Econ, and Law<\/a><\/li>\n<li>Intelligence, artificial vs natural: <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/WordLogic-Question.png\" target=\"_blank\" rel=\"noopener\">a question<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/WordLogic-A1.png\" target=\"_blank\" rel=\"noopener\">answer 1<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/WordLogic-A2.png\" target=\"_blank\" rel=\"noopener\">answer 2<\/a>, <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/12\/WordLogic-A3.png\" target=\"_blank\" rel=\"noopener\">answer 3<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/11\/Rolling_Racers_-_Moment_of_inertia.gif\" target=\"_blank\" rel=\"noopener\">A physics puzzle<\/a> and a <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2023\/11\/RollingDownARamp.pdf\" target=\"_blank\" rel=\"noopener\">partial explanation<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2025\/08\/Brachistochron.webp\" target=\"_blank\" rel=\"noopener\">Another famous physics\/math problem<\/a><\/li>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2026\/03\/NotAJoke.jpg\" target=\"_blank\" rel=\"noopener\">Not A Joke<\/a>\u00a0 \u00a0 [and the <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2026\/03\/ASimpleEquation.pdf\" target=\"_blank\" rel=\"noopener\">explanation<\/a>]<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><strong>Historical events<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2026\/04\/LondonMarathon-April26-2026.png\" target=\"_blank\" rel=\"noopener\">London Marathon 2026<\/a> and the <a href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/wp-content\/uploads\/sites\/211\/2026\/04\/LondonMarathon2026-TopResults.png\" target=\"_blank\" rel=\"noopener\">top finishers<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":385,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-470","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>General Interest - Sergey Lototsky<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dornsife.usc.edu\/sergey-lototsky\/general-interest\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"General Interest - 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