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

Wednesday, May 12, 2021

🌑🌒🌓🌔 Unit circle angles. Trigonometry, Math Formulas, Geometry Formulas 🌖🌗🌘🌑

General Astronomy 🌑🌒🌓🌔🌕🌖🌗🌘🌑: Unit circle angles. Trigonometry, Math Formulas, G...:   Available Products Active T-Shirt $25.00 Baseball ¾ Sleeve T-Shirt $25.20 Classic T-Shirt $19.90 Graphic T-Shirt $28.22 Lightweight Hoodie...

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Saturday, May 1, 2021

Физика

 Возник вопрос на который могут ответить только те, кто, как говориться, в теме, потому, что общие соображения здесь уже не достаточны, а нужен инженерный расчет и инженерное знания по теме. Известно, что космическая станция время от времени нуждается в восстановлении орбиты, с которой она постоянно сходит из-за силы сопротивления остатков атмосферы на высоте полёта станции. И в то же время совсем не видно по форме станции, чтобы  ей пытались придать форму, снижающую сопротивление - вот солнечные батареи торчат во все стороны. Почему на придание станции формы, уменьшающую сопротивление, совсем не обращают внимание? Или так кажется только со стороны?

.............

А вот первый космический спутник имел форму, которую можно назвать обтекаемой - круглый шар и направленные назад и немного в стороны антенны. При его проектировании явно как-то учитывали сопротивление остатков атмосферы. Летел ли он всегда передней стороной вперёд?

....................


У меня эта картинка вызвала появление задачи по физике: Пять одинаковых (для начала) точечных масс, известной величины, равномерно закреплённых на струне (массой струны можно пренебречь), и образующих правильный пятиугольник, вращаются с известной угловой скоростью (пятиугольник вращается вокруг центра). Найти натяжение струны.  В такой постановке понятно как решать задачу. А вот пусть массы не одинаковы. И, предположим, что установилась стабильная форма, образуемая массами. Это что за форма? Как её найти даже в упрощающем предположении, что только одна масса отличается от остальных?

..................

Наверное учебники физики раздел об электризации никогда не меняли и ничего нового в него не добавляли. "Потереть эбонитовую палочку" повторяется, наверное, тысячелетия, не меняясь. Как это свойство тел - "электризация", связано с атомно-молекулярным строением? Наверное, надеюсь, специалисты знают, я нет. Вот эта статья мне хоть что-то добавила об электризации https://zen.yandex.ru/media/id/5a630d2c9b403c5442578563/chto-takoe-triboelektricheskii-effekt-ili-pochemu-na-stekle-dielektrike-voznikaet-elektricheskii-zariad-5c9bd3cfe5345700b36bab30


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Вполне возможно, что цепь, образующая круг, и закрученная в плоскости этого круга, будет стабильно сохранять форму круга. А возможны другие стабильные формы, которые будут образованы замкнутыми движениями звеньев цепи, т.е. когда траектория движения звеньев цепи точно проходит по самой цепи, совпадает с формой этой цепи. Ну, хотя бы, возможны ли эллипсы? 


.................

Это Ваши предположения, или Вам известны технические материалы по движению первого спутника?  Что форма и положение антенн не влияли, или не повлияли на ориентацию спутника.

..................

"Спутник летал 92 дня, до 4 января 1958 года, совершив 1440 оборотов вокруг Земли (около 60 млн км), а его радиопередатчики работали в течение трёх недель после старта. Из-за трения о верхние слои атмосферы спутник потерял скорость..."  " Характер изменений орбиты позволил произвести предварительную оценку величины плотности атмосферы на орбитальных высотах, её высокое значение (порядка 108 атомов/см³) стало для геофизиков большой неожиданностью." https://ru.wikipedia.org/wiki/Спутник-1

.....................

Нашёл что-то монографичное по этой теме. 

https://chem21.info/page/115063025189234126042030123013011180157205021036/

Сразу ответа на Ваш вопрос найти здесь трудно, но есть где искать. 

https://chem21.info/page/017036205234089080163000163133046012139138168015/

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Также английская версия статьи в Википедии о трибоэлектрическом эффекте  о включает какие-то таблицы с названиями веществ: https://upload.wikimedia.org/wikipedia/commons/thumb/6/69/Triboelectric_charge_density.jpg/800px-Triboelectric_charge_density.jpg

.................

И вот статья ещё возможно содержит нужную информацию: https://www.nature.com/articles/s41427-019-0176-0 

Ещё:

https://web.archive.org/web/20170301180909/https://www.hse.ru/pubs/share/direct/demo_document/63787566

.................

 Тут интересно, конечно, как воспринимаем интуитивно, что такое отсутствие, и что такое ноль. Когда изучаем момент сил, почему то у студентов вызывает сложность вопрос, чему равно расстояние между прямой и точкой, когда прямая проходит через точку. Если не проходит, то всё нормально, студенты берут перпендикуляр из точки, а во прямая прошла через точку, и студент впадает в ступор. Так нулевое расстояние, это когда расстояния нет или когда оно есть, но равно нулю?




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