Scientific and Artistic Prints on Awesome Products

Print, Unit #circle #angles. #Trigonometry, #Math Formulas, Geometry Formulas Poster
Unit #circle #angles. #Trigonometry, #Math Formulas, Geometry Formulas Poster
$14.32		 Print, Ohm, Electric Current, Electricity, Electrical Resistance, Conductance, Electrician, Ampere, Electrical Network Sticker
Ohm, Electric Current, Electricity, Electrical Resistance, Conductance, Electrician, Ampere, Electrical Network Sticker
From $1.25		 Print, Educational Poster: The Standard Model of Fundamental Particles and Interactions Mask
Educational Poster: The Standard Model of Fundamental Particles and Interactions Mask
From $8.00		 Print, #Standard #Model of #Elementary #Particles Photographic Print
#Standard #Model of #Elementary #Particles Photographic Print
$6.79		 Print, #Venus of #Willendorf #artifact sculpture art figurine statue humanbody #VenusofWillendorf Sticker
#Venus of #Willendorf #artifact sculpture art figurine statue humanbody #VenusofWillendorf Sticker
From $1.25
Print, Standard Model Of Elementary Particles #Quarks #Leptons #GaugeBosons #ScalarBosons Bosons Classic T-Shirt
Standard Model Of Elementary Particles #Quarks #Leptons #GaugeBosons #ScalarBosons Bosons Classic T-Shirt
$19.90		 Print, Hieronymus #Bosch #HieronymusBosch #Painting Art Famous Painter Zipped Hoodie
Hieronymus #Bosch #HieronymusBosch #Painting Art Famous Painter Zipped Hoodie
$39.90		 Print, Cosmic microwave background. First detailed "baby picture" of the universe Sticker
Cosmic microwave background. First detailed "baby picture" of the universe Sticker
From $1.25		 Print, Unit circle angles. Trigonometry, Math Formulas, Geometry Formulas Poster
Unit circle angles. Trigonometry, Math Formulas, Geometry Formulas Poster
$14.32		 Print, Maxwell's equations, #Maxwells, #equations, #MaxwellsEquations, Maxwell, equation, MaxwellEquations, #Physics, Electricity, Electrodynamics, Electromagnetism Mask
Maxwell's equations, #Maxwells, #equations, #MaxwellsEquations, Maxwell, equation, MaxwellEquations, #Physics, Electricity, Electrodynamics, Electromagnetism Mask
From $8.00
Print, Mandelbrot set Tapestry
Mandelbrot set Tapestry
$31.21		 Print, The #Laniakea #Supercluster, #Cosmology, #Astrophysics, Astronomy Mask
The #Laniakea #Supercluster, #Cosmology, #Astrophysics, Astronomy Mask
From $8.00		 Print, #Quetzalcoatl #featheredserpent #worship #Feathered Serpent Teotihuacan century Mesoamerican chronology veneration figure Mesoamerica Mexican religious center Cholula Maya area Kukulkan Classic T-Shirt
#Quetzalcoatl #featheredserpent #worship #Feathered Serpent Teotihuacan century Mesoamerican chronology veneration figure Mesoamerica Mexican religious center Cholula Maya area Kukulkan Classic T-Shirt
$19.90		 Print, #УравненияЭйнштейна #Эйнштейн #Гильберт #уравнения #ГравитационноеПоле #ОбщаяТеорияОтносительности #метрика #искривлённое #пространствовремя #свойства #заполняющая #материя #УравнениеЭйнштейна #Теория Classic T-Shirt
#УравненияЭйнштейна #Эйнштейн #Гильберт #уравнения #ГравитационноеПоле #ОбщаяТеорияОтносительности #метрика #искривлённое #пространствовремя #свойства #заполняющая #материя #УравнениеЭйнштейна #Теория Classic T-Shirt
$19.90		 Print, flash of firework, flash of fireworks, salute, fireworks, #flashoffirework, #flashoffireworks, #salute, #fireworks, #flash, #firework, #flashes, #salutes Sticker
flash of firework, flash of fireworks, salute, fireworks, #flashoffirework, #flashoffireworks, #salute, #fireworks, #flash, #firework, #flashes, #salutes Sticker
From $1.25
Print, Tree of Animal Life - Evolution is change in the heritable characteristics of biological populations over successive generations Tapestry
Tree of Animal Life - Evolution is change in the heritable characteristics of biological populations over successive generations Tapestry
$31.21		 Print, #Standard #Model Of #Elementary #Particles Art Board Print
#Standard #Model Of #Elementary #Particles Art Board Print
From $7.28		 Print, #Ukrainian #Embroidery, #CrossStitch, #Pattern Throw Pillow
#Ukrainian #Embroidery, #CrossStitch, #Pattern Throw Pillow
From $18.40		 Print, Physics Equations - Physics Formulas Water Bottle
Physics Equations - Physics Formulas Water Bottle
$18.88		 Print, #Standard #Model of #Particle #Physics. Interactions: electromagnetic, weak, strong. Elementary: electron, top quark, tau neutrino, Higgs boson, ... Sticker
#Standard #Model of #Particle #Physics. Interactions: electromagnetic, weak, strong. Elementary: electron, top quark, tau neutrino, Higgs boson, ... Sticker
From $1.25
Print, The Standard Model of Fundamental Particles and Interactions #Physics #ModernPhysics #ParticlePhysics #QuantumPhysics #StandardModel #FundamentalParticles #FundamentalInteractions #model #interactions Tapestry
The Standard Model of Fundamental Particles and Interactions #Physics #ModernPhysics #ParticlePhysics #QuantumPhysics #StandardModel #FundamentalParticles #FundamentalInteractions #model #interactions Tapestry
$31.21		 Print, Normal Distribution Curve #Normal #Distribution #Curve #NormalDistributionCurve #NormalDistribution #Statistics, #text, #area, #illustration, #diagram, #decoration, #tent, #plot Mask
Normal Distribution Curve #Normal #Distribution #Curve #NormalDistributionCurve #NormalDistribution #Statistics, #text, #area, #illustration, #diagram, #decoration, #tent, #plot Mask
From $8.00		 Print, Optical illusion Trip Sticker
Optical illusion Trip Sticker
From $1.25		 Print, The #Birth of #Venus, Alexandre Cabanel 1875 #TheBirthofVenus #BirthofVenus Duvet Cover
The #Birth of #Venus, Alexandre Cabanel 1875 #TheBirthofVenus #BirthofVenus Duvet Cover
$86.87		 Print, United States Department of Homeland Security, Government department Mask
United States Department of Homeland Security, Government department Mask
From $8.00
Print, Electromagnetic Spectrum - Physics, Electromagnetism Sticker
Electromagnetic Spectrum - Physics, Electromagnetism Sticker
From $1.25		 Print, #Wicker, #roughlinen, #burlap, #sackcloth, sacking, bagging, холст, scrim, cloth, crash, власяница, hairshirt, haircloth, мешковина Throw Blanket
#Wicker, #roughlinen, #burlap, #sackcloth, sacking, bagging, холст, scrim, cloth, crash, власяница, hairshirt, haircloth, мешковина Throw Blanket
$38.92		 Print, Op Art. Victor #Vasarely, was a Hungarian-French #artist, who is widely accepted as a #grandfather and leader of the #OpArt movement Metal Print
Op Art. Victor #Vasarely, was a Hungarian-French #artist, who is widely accepted as a #grandfather and leader of the #OpArt movement Metal Print
$48.04		 Print, Hydrogen Wave Function Poster
Hydrogen Wave Function Poster
$14.32		 Print, Luis Ricardo Falero - Witches going to their Sabbath (1878) Photographic Print
Luis Ricardo Falero - Witches going to their Sabbath (1878) Photographic Print
$6.79
Print, Op Art #OpArt Optical Art #OpticalArt Optical Illusions #OpticalIllusions #Illusion Poster
Op Art #OpArt Optical Art #OpticalArt Optical Illusions #OpticalIllusions #Illusion Poster
$14.32		 Print, David by Michelangelo #David #Michelangelo #DavidbyMichelangelo #masterpiece Renaissance sculpture Art Print
David by Michelangelo #David #Michelangelo #DavidbyMichelangelo #masterpiece Renaissance sculpture Art Print
From $17.18		 Print, #Integrals, #math, #calculus, #mathematics, Integral, natural, logarithm, naturalLogarithm, exponent Physics Kids Mask
#Integrals, #math, #calculus, #mathematics, Integral, natural, logarithm, naturalLogarithm, exponent Physics Kids Mask
From $9.99		 Print, Physics Standard Model Theory Poster
Physics Standard Model Theory Poster
$14.32		 Print, Cosmic microwave background. First detailed "baby picture" of the universe. #Cosmic, #microwave, #background, #First, #detailed, #baby, #picture, #universe Art Print
Cosmic microwave background. First detailed "baby picture" of the universe. #Cosmic, #microwave, #background, #First, #detailed, #baby, #picture, #universe Art Print
From $17.18
Print, Famous philosophers, #Famous, #philosophers, #FamousPhilosophers, #Philosophy, #philosopher, #FamousPhilosopher Poster
Famous philosophers, #Famous, #philosophers, #FamousPhilosophers, #Philosophy, #philosopher, #FamousPhilosopher Poster
$14.32		 Print, Functional groups in organic chemistry are structural features distinguish one organic molecule from another Socks
Functional groups in organic chemistry are structural features distinguish one organic molecule from another Socks
From $12.92		 Print, #Периодическаятаблица #Periodic #Table of the #Elements #PeriodicTableoftheElements Acrylic Block
#Периодическаятаблица #Periodic #Table of the #Elements #PeriodicTableoftheElements Acrylic Block
From $21.46		 Print, Planck constant, #Planck, #constant, #PlanckConstant, #Symbol Sticker
Planck constant, #Planck, #constant, #PlanckConstant, #Symbol Sticker
From $1.25		 Print, Mosfet symbol, #mosfet, #symbol, #MosfetSymbol, #SymboleMosfet Small Mask
Mosfet symbol, #mosfet, #symbol, #MosfetSymbol, #SymboleMosfet Small Mask
From $8.00
Print, Phylogenetic Evolutionary Tree: Bacteria, Archaeva, Eukaryota Poster
Phylogenetic Evolutionary Tree: Bacteria, Archaeva, Eukaryota Poster
$14.32		 Print, Optical Illusion, visual illusion, #OpticalIllusion, #visualillusion, #Optical, #Illusion, #visual Backpack
Optical Illusion, visual illusion, #OpticalIllusion, #visualillusion, #Optical, #Illusion, #visual Backpack
$50.00		 Print, Optical Illusion, Visual Illusion, Cognitive Illusions, #OpticalIllusion, #VisualIllusion, #CognitiveIllusions, #Optical, #Illusion, #Visual, #Cognitive, #Illusions Classic Mug
Optical Illusion, Visual Illusion, Cognitive Illusions, #OpticalIllusion, #VisualIllusion, #CognitiveIllusions, #Optical, #Illusion, #Visual, #Cognitive, #Illusions Classic Mug
From $12.61		 Print, #Integrals #Math #Calculus #Mathematics Integral Function Equation Formula Essential T-Shirt
#Integrals #Math #Calculus #Mathematics Integral Function Equation Formula Essential T-Shirt
$19.90		 Print, #Mendeleev's #Periodic #Table of the #Elements Pullover Sweatshirt
#Mendeleev's #Periodic #Table of the #Elements Pullover Sweatshirt
$34.85
Print, Cave painting, parietal art, paleolithic cave paintings, #Cave, #painting, #parietal, #art, #paleolithic, #paintings, #CavePainting, #ParietalArt, #PaleolithicCavePaintings Mask
Cave painting, parietal art, paleolithic cave paintings, #Cave, #painting, #parietal, #art, #paleolithic, #paintings, #CavePainting, #ParietalArt, #PaleolithicCavePaintings Mask
From $8.00		 Print, #Voynich #Manuscript #Language #VoynichManuscript Classic T-Shirt
#Voynich #Manuscript #Language #VoynichManuscript Classic T-Shirt
$19.90		 Print, History of the Soviet Union (1927–1953) State Emblem of the Soviet Union Jigsaw Puzzle
History of the Soviet Union (1927–1953) State Emblem of the Soviet Union Jigsaw Puzzle
$30.00		 Print, Et tu, Brute? Even you, Brutus? Death of Caesar by Vincenzo Camuccini #DeathofCaesar #Death #Caesar #VincenzoCamuccini #EtTuBrute #EvenYouBrutus Poster
Et tu, Brute? Even you, Brutus? Death of Caesar by Vincenzo Camuccini #DeathofCaesar #Death #Caesar #VincenzoCamuccini #EtTuBrute #EvenYouBrutus Poster
$14.32		 Print, Most Famous Paintings #Most #Famous #Paintings #FamousPaintings VanGogh StarryNight VincentVanGogh Classic T-Shirt
Most Famous Paintings #Most #Famous #Paintings #FamousPaintings VanGogh StarryNight VincentVanGogh Classic T-Shirt
$19.90
Print, Judith and the Head of Holofernes (also known as Judith I) is an oil painting by Gustav Klimt created in 1901. It depicts the biblical character of Judith Art Board Print
Judith and the Head of Holofernes (also known as Judith I) is an oil painting by Gustav Klimt created in 1901. It depicts the biblical character of Judith Art Board Print
From $7.28		 Print, Российский флаг, Флаг российской федерации, Russian flag, Flag of the Russian Federation, Russia, Russian, flag, Russian Federation Magnet
Российский флаг, Флаг российской федерации, Russian flag, Flag of the Russian Federation, Russia, Russian, flag, Russian Federation Magnet
$7.00		 Print, #Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery Mask
#Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery Mask
From $8.00		 Print, The Cosmic Microwave Background (CMB, CMBR) #Cosmic #Microwave #Background #CMB CMBR Acrylic Block
The Cosmic Microwave Background (CMB, CMBR) #Cosmic #Microwave #Background #CMB CMBR Acrylic Block
From $21.46		 Print, #Physics #Formula Set #PhysicsFormulaSet #FormulaSet Jigsaw Puzzle
#Physics #Formula Set #PhysicsFormulaSet #FormulaSet Jigsaw Puzzle
$30.00
Print, #Cave #painting, #parietal #art, paleolithic cave paintings Tapestry
#Cave #painting, #parietal #art, paleolithic cave paintings Tapestry
$31.21		 Print, Optical illusion in Physics Mask
Optical illusion in Physics Mask
From $8.00		 Print, Virtual Meeting of David and Aphrodite #Virtual #Meeting #David #Aphrodite Hardcover Journal
Virtual Meeting of David and Aphrodite #Virtual #Meeting #David #Aphrodite Hardcover Journal
From $17.43		 Print, Green Tara (Khadiravani) is usually associated with protection from fear and the eight obscurations: pride, ignorance, hatred and anger, jealousy, bandits and thieves and so on. Poster
Green Tara (Khadiravani) is usually associated with protection from fear and the eight obscurations: pride, ignorance, hatred and anger, jealousy, bandits and thieves and so on. Poster
$14.32		 Print, «Проун» Лисицкого (1922–1923) Classic Mug
«Проун» Лисицкого (1922–1923) Classic Mug
From $12.61
Print, Stainless steel, metal, texture, #Stainless, #steel, #metal, #texture, #StainlessSteel iPhone Soft Case
Stainless steel, metal, texture, #Stainless, #steel, #metal, #texture, #StainlessSteel iPhone Soft Case
$21.00		 Print, Clock Dial with Roman Numerals Sticker
Clock Dial with Roman Numerals Sticker
From $1.25		 Print, Stainless steel, metal, texture, #Stainless, #steel, #metal, #texture, #StainlessSteel iPhone Soft Case
Stainless steel, metal, texture, #Stainless, #steel, #metal, #texture, #StainlessSteel iPhone Soft Case
$21.00		 Print, Evening Mood painting by William-Adolphe Bouguereau Poster
Evening Mood painting by William-Adolphe Bouguereau Poster
$14.32		 Print, Euler's Identity, Math, Mathematics, Science, formula, equation, #Euler's #Identity Sticker
Euler's Identity, Math, Mathematics, Science, formula, equation, #Euler's #Identity Sticker
From $1.25
Print, Claude Monet - French painter Mask
Claude Monet - French painter Mask
From $8.00		 Print, #Venus of #Willendorf #artifact sculpture art figurine statue humanbody #VenusofWillendorf Poster
#Venus of #Willendorf #artifact sculpture art figurine statue humanbody #VenusofWillendorf Poster
$14.32		 Print, Kabbalistic Tree of Life (Sephiroth) Scarf
Kabbalistic Tree of Life (Sephiroth) Scarf
From $22.33		 Print, #Optical #Illusion #OpticalIllusion #VisualArt Black and White znamenski.redbubble.com Classic T-Shirt
#Optical #Illusion #OpticalIllusion #VisualArt Black and White znamenski.redbubble.com Classic T-Shirt
$19.90		 Print, #Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery Mask
#Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery Mask
From $8.00
Print, General Physics 2, #GeneralPhysics, #General, #Physics, #Electromagnetism, Thermodynamics, AtomicPhysics, NuclearPhysics Mask
General Physics 2, #GeneralPhysics, #General, #Physics, #Electromagnetism, Thermodynamics, AtomicPhysics, NuclearPhysics Mask
From $8.00		 Print, Espiral Hipnótica, Optical Illusion Beige Swirl Poster
Espiral Hipnótica, Optical Illusion Beige Swirl Poster
$14.32		 Print, #BernoulliEquation #Physics #Hydrodynamics #statement conservation energy principle flowing qualitative Poster
#BernoulliEquation #Physics #Hydrodynamics #statement conservation energy principle flowing qualitative Poster
$14.32		 Print, Op Art. Victor #Vasarely, was a Hungarian-French #artist, who is widely accepted as a #grandfather and leader of the #OpArt movement Framed Art Print
Op Art. Victor #Vasarely, was a Hungarian-French #artist, who is widely accepted as a #grandfather and leader of the #OpArt movement Framed Art Print
$80.81		 Print, Lamour and Psyche Children – (William Adolphe Bouguereau) Mask
Lamour and Psyche Children – (William Adolphe Bouguereau) Mask
From $8.00
Print, Molecular Structure of Ion Channels Backpack
Molecular Structure of Ion Channels Backpack
$50.00		 Print, #Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery iPhone Soft Case
#Ukraine #Pattern - Ukrainian Embroidery: вишивка, vyshyvka #UkrainianPattern #UkrainianEmbroidery iPhone Soft Case
$21.00		 Print, #Op art, #Art movement, #Optical #illusion Poster
#Op art, #Art movement, #Optical #illusion Poster
$14.32		 Print, Colorful vortex spiral - hypnotic CMYK background, optical illusion Mask
Colorful vortex spiral - hypnotic CMYK background, optical illusion Mask
From $8.00		 Print, Slow Down, Traffic Sign, #SlowDown, #Slow, #Down, #TrafficSign, #Traffic, #Sign, #danger, #safety, #road, #advice, #caveat, #symbol, #attention, #care Magnet
Slow Down, Traffic Sign, #SlowDown, #Slow, #Down, #TrafficSign, #Traffic, #Sign, #danger, #safety, #road, #advice, #caveat, #symbol, #attention, #care Magnet
$7.00
Print, Some #Indefinite #Integrals #IndefiniteIntegral Poster
Some #Indefinite #Integrals #IndefiniteIntegral Poster
$14.32		 Print, Salvador Dali Paintings Watches Throw Pillow
Salvador Dali Paintings Watches Throw Pillow
From $18.40		 Print, The Pearls Of Aphrodite – (Herbert James Draper) Герберт Дрейпер - Жемчуг Афродиты Poster
The Pearls Of Aphrodite – (Herbert James Draper) Герберт Дрейпер - Жемчуг Афродиты Poster
$14.32		 Print, #UkrainianFolkCostumePattern #ukrainianfolk #costumepattern #ukrainian #folk #costume #pattern #decoration #ornate #abstract #textile #creativity #fashion #repetition #vertical #colorimage #retrostyle Fitted 3-Layer
#UkrainianFolkCostumePattern #ukrainianfolk #costumepattern #ukrainian #folk #costume #pattern #decoration #ornate #abstract #textile #creativity #fashion #repetition #vertical #colorimage #retrostyle Fitted 3-Layer
From $16.00		 Print, Physics, General Relativity, Einsteins (Field) Equations, #Physics, #General #Relativity, #Einstein's (#Field) #Equations Graphic T-Shirt
Physics, General Relativity, Einsteins (Field) Equations, #Physics, #General #Relativity, #Einstein's (#Field) #Equations Graphic T-Shirt
$28.22
Print, A two-dimensional representation of the Klein bottle immersed in three-dimensional space, #TwoDimensional, #representation, #KleinBottle, #immersed, #ThreeDimensional, #space Kids Mask
A two-dimensional representation of the Klein bottle immersed in three-dimensional space, #TwoDimensional, #representation, #KleinBottle, #immersed, #ThreeDimensional, #space Kids Mask
From $9.99		 Print, Leon Trotsky Лев #Троцкий Leo Dawidowitsch #Trotzki Lev Davidovich #Bronstein RSDLP Trotskyism #LeonTrotsky #ЛевТроцкий #LeoDawidowitschTrotzki #LevDavidovichBronstein #RSDLP #Trotskyism #Trotsky Sticker
Leon Trotsky Лев #Троцкий Leo Dawidowitsch #Trotzki Lev Davidovich #Bronstein RSDLP Trotskyism #LeonTrotsky #ЛевТроцкий #LeoDawidowitschTrotzki #LevDavidovichBronstein #RSDLP #Trotskyism #Trotsky Sticker
From $1.25		 Print, #Periodic #Table of #Elements #PeriodicTableofElements iPhone Soft Case
#Periodic #Table of #Elements #PeriodicTableofElements iPhone Soft Case
$21.00		 Print, #chessproblem #chess #problem #playchess chesspiece chessset chessmaster chinesechess Travel Mug
#chessproblem #chess #problem #playchess chesspiece chessset chessmaster chinesechess Travel Mug
$25.25		 Print, Undine Rising from the Waters. Chauncey Bradley Ives Fitted 3-Layer
Undine Rising from the Waters. Chauncey Bradley Ives Fitted 3-Layer
From $16.00
Print, Satellite map of Antarctica - Спутниковая карта Антарктиды Poster
Satellite map of Antarctica - Спутниковая карта Антарктиды Poster
$14.32		 Print, Evening Mood painting by William-Adolphe Bouguereau Canvas Print
Evening Mood painting by William-Adolphe Bouguereau Canvas Print
$48.48		 Print, artist, painter, craftsman, Gino Severini, futurism, futurist, art Poster
artist, painter, craftsman, Gino Severini, futurism, futurist, art Poster
$14.32		 Print, Great Seal of the United States Magnet
Great Seal of the United States Magnet
$7.00		 Print, Dharmachakra, Wheel of Dharma. #Dharmachakra #WheelofDharma #Wheel #Dharma #znamenski #helm #illustration #rudder #captain #symbol #design #vector #art #decoration #sign #anchor #antique #colorimage Sticker
Dharmachakra, Wheel of Dharma. #Dharmachakra #WheelofDharma #Wheel #Dharma #znamenski #helm #illustration #rudder #captain #symbol #design #vector #art #decoration #sign #anchor #antique #colorimage Sticker
From $1.25
Print, Flat Earth #FlatEarth Backpack
Flat Earth #FlatEarth Backpack
$50.00		 Print, #Hieronymus, #Bosch, #HieronymusBosch, #Paintings, Fantastic Landscapes, Heavenly Powers, Duffle Bag
#Hieronymus, #Bosch, #HieronymusBosch, #Paintings, Fantastic Landscapes, Heavenly Powers, Duffle Bag
$45.00		 Print, Voynich Manuscript. Illustrated codex hand-written in an unknown writing system Poster
Voynich Manuscript. Illustrated codex hand-written in an unknown writing system Poster
$14.32		 Print, Slide rule, #slipstick, mechanical analog #computer, graphical analog #calculators, #nomograms, general calculations, application specific computations Magnet
Slide rule, #slipstick, mechanical analog #computer, graphical analog #calculators, #nomograms, general calculations, application specific computations Magnet
$7.00		 Print, Tree of Life (Kabbalah) Sticker
Tree of Life (Kabbalah) Sticker
From $1.25

Saturday, June 12, 2021

Марс, Маск и ядерные ракеты | Лекция Владимира Сурдина

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Thursday, June 10, 2021

Speed, in your opinion, is it mathematics or physics?

 А скорость, по Вашему, это математика или физика? А ускорение? Физик, хороший физик видит в ряде Тейлора, в его коэффициентах, физические величины, понимает их физический смысл. Для физика вся математика, которую он понимает, имеет физический смысл. И это очень важно, имтересно и полезно для физики на физическом форуме обсуждать формально математические вещи, но именно понимая их физический смысл, а не формально-математически. Поэтому я приветствую задачи, вопросы, обсуждения формально на математические темы, но прошу всегда, приведите примеры физических задач, где работает эта математика. Если это есть - будем вникать в физический смысл математических выражений и преобраований.


У меня совсем другое отношение к лекции. Я удивляюсь, когда студенты пытаются записывать лекцию как какой-то текст, ведь этот же текст, даже более подробный и понятный есть и в учебнике. Во время лекции студент должен максимально сосредоточится на идеях, о которых рассказывает лектор, попытаться понять лектора, вступить с ним в своего рода интеллектуальную связь (хотелось бы, что бы это было так). Вообще-то в моей практике преподавания в колледже, нет разницы между лекцией и семинаром, как было, помню, в университете, когда я был студентом. Есть мнение, что запись рукой текста помогает понять его смысл, поэтому полезно иногда диктовать студентам основные моменты лекции, чтобы они записывали и понимали. Я в это не очень верю. Я предпочетаю студентам давать задачи, где не надо сложно вычислять, а главное понять смысл, и жду реакцию студентов. Так, продвигаясь от одной задачи  к другой, постепенно между задачами дополняя теоретический материал, я и провожу мои лекции - семинары. Но это при обучении в аудитории. Конечо, преподавание онлайн так построить не получается. Но я стремился к этому и в преподавании онлайн. Да, и к началу лекции я стараюсь приготовить раздаточный материал, гда уже записано, напечатано самое главное, что я буду давать на лекции. Зачем ещё что-то диктовать, а студентам записывать?

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Wednesday, June 9, 2021

Suppose the body is moving in a straight line with constant acceleration ...

В нашей группе, как я вижу, есть очень сильные физики, перед знаниями которых и умением решать физические задачи я "снимаю шляпу".
Однако я не помню, чтобы на одну задачу в нашей группе был получен правильный ответ.
Или я забыл?
Но повторю задачу опять, она мне нравится.
Сам я её как-то очень долго, делая ошибки, решал путём алгебраических преобразований, применял матрицы... .
Решил, а потом оказалось, что у неё есть очень быстрое и простое решение.
Как тест "научной мощности" групп, я забросил эту задачу на некоторые англоязычные физические группы и на одной из них в течение суток сразу получил исчерпывающий ответ, при этом приводился закон физики с неизвестным мне именем.

Так задача:
Известно что тело движется прямолинейно по направлению оси Х с постоянным ускорением.
Ни когда тело начало движение, ни ускорение неизвестны.
Через равные и неизвестные промежутки времени измеряем значение координаты Х.
Получили значения 3-х координат: x₁, x₂, x₃. Вычислить, какое значение будет у следующей координаты x₄.

P.S.
Для очень похожей задачи, которая звучит почти также, но в ней получают три момента времени t₁, t₂, t₃ прохождения равноотстоящих на оси Х меток, вычислить четвёртый t₄, я так и не знаю простого решения.
Путём громоздких алгебраических преобразований ответ получить можно.
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Monday, June 7, 2021

Physics Problem: Vasya 1

 Вася сидит и занимается ерундой- ставит карандаш, как ему кажется, вертикально и засекает время падения. Среднее арифметическое время получается t1.

Робот Коля сидит в маршрутке (в Мухосранске, то яма, то канава и т. д.) и ставит карандаш строго вертикально, и тоже засекает время падения и получает среднее t2.

Если посадить Васю в маршрутку, какое среднее время у него получится?



Решение с упрощениями и преположениями.

Предположим, что время падения карандаша Т зависит от параметра Х - случайного начального отклонения от строго вертикального как Т = к / Х.

Тогда для Васи: Т₁ = к / X₁

Для маршрутки: Т₂  =  к / X₂

Если Вася едет на маршрутке, то предположим параметры "Х" Васи и маршрутки складываются X₃ =  X₁ + X₂.

Время падения карандаша в маршрутке: Т₃ = к / X₃ = к / (X₁ + X₂) = 1 / (X₁ / к + X₂ / к) = 1 / (1 / Т₁ + 1 / Т₂). 

Или получается как в формуле  параллельных сопротивлений: 1 / Т₃ = 1 / Т₁ + 1 / Т₂


Хотя, возможно X₃²  =  X₁²  + X₂² тогда 1 /Т₃²  =   1 /Т₁² + 1/Т₂²


Вам не нравится это решение?

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