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Invidious > Channel > Nils Berglund

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YT 3 minutes Nils Berglund Waves in an elliptical swimming pool YT 3 minutes 1 second Nils Berglund Waves in an elliptical swimming pool 2 YT 5 minutes 1 second Nils Berglund Waves in an elliptical swimming pool 3: Starting from a focus

YT 5 minutes Nils Berglund Dropping a stone in a flooded stadium YT 5 minutes 1 second Nils Berglund Raindrop in the Sinai billiard YT 2 minutes 1 second Nils Berglund A saucerful of droplets

YT 5 minutes 1 second Nils Berglund Rain on my crazy diamond YT 3 minutes 1 second Nils Berglund Just another drop in the pool YT 4 minutes 1 second Nils Berglund Low sea in the square with diamonds

YT 4 minutes 1 second Nils Berglund Like tears in rain YT 5 minutes 21 seconds Nils Berglund The dark side of the pool YT 5 minutes 1 second Nils Berglund Sunset at Research Triangle Park

YT 1 minute 23 seconds Nils Berglund Snell's law of refraction YT 5 minutes 17 seconds Nils Berglund The Revelation of Sonmi 451 YT 3 minutes 5 seconds Nils Berglund Winter is coming

YT 2 minutes 41 seconds Nils Berglund Diffraction - Young's double-slit experiment with waves YT 5 minutes 1 second Nils Berglund Waves around a conical singularity YT 2 minutes Nils Berglund Diffraction of a wave on a grating

YT 6 minutes 8 seconds Nils Berglund Waves hitting a Sierpinski carpet YT 2 minutes 41 seconds Nils Berglund Dropping a stone in a Julia pond YT 2 minutes 41 seconds Nils Berglund Storm in a fjord: more waves in a Julia set

YT 3 minutes 21 seconds Nils Berglund Zoom on a wave hitting the Mandelbrot set YT 4 minutes 8 seconds Nils Berglund Wave hitting a Sierpinki carpet: evolution of the energy distribution YT 3 minutes 21 seconds Nils Berglund More on the importance of mangroves

YT 1 minute Nils Berglund #shorts: Wave hitting the Mandelbrot set YT 3 minutes 41 seconds Nils Berglund Anderson localization: randomly placed mangroves offer better tsunami protection YT 5 minutes 21 seconds Nils Berglund Waves colliding with a hexagonal grid

YT 4 minutes 1 second Nils Berglund Planar wave encountering a hexagonal grid (amplitude and energy) YT 3 minutes 1 second Nils Berglund Soft obstacles: a wave encountering a grid of refracting circles YT 2 minutes 33 seconds Nils Berglund Wave crashing into a percolation-style random arrangement of obstacles

YT 4 minutes 1 second Nils Berglund Planar wave hitting a percolation-style random arrangement of obstacles YT 3 minutes 53 seconds Nils Berglund So long and thanks for all the fish - linear wave hitting a Poisson process of obstacles YT 3 minutes 53 seconds Nils Berglund The amplitude of the fish

YT 4 minutes 45 seconds Nils Berglund Refraction (and diffraction) though a raindrop YT 2 minutes 52 seconds Nils Berglund Refraction of a wave on region with higher propagation speed YT 55 seconds Nils Berglund There's something in my prism and it's not me: Planar wave refracting through a prism

YT 1 minute 16 seconds Nils Berglund A cloaking device (non-optimized version) YT 2 minutes 25 seconds Nils Berglund Right as rain: Light encountering a raindrop with index of refraction 1.333 YT 1 minute 31 seconds Nils Berglund Wave protection comparison 1: square grid of obstacles vs nothing

YT 2 minutes 41 seconds Nils Berglund Wave protection comparison 2: square grid versus triangular grid YT 2 minutes 21 seconds Nils Berglund An elliptical lens YT 2 minutes 1 second Nils Berglund Wave protection comparison 3: regular vs random square grid

YT 1 minute 21 seconds Nils Berglund A cloaking device (first optimized version) YT 2 minutes 21 seconds Nils Berglund A cloaking device, optimized version with longer wavelength YT 3 minutes 1 second Nils Berglund Refraction of a wave on a horizontal ellipse

YT 3 minutes 1 second Nils Berglund A wave protection based on the golden mean YT 3 minutes 41 seconds Nils Berglund Wave protection comparison 4: randomized square grid vs Poisson process YT 3 minutes 55 seconds Nils Berglund Wave protection comparison 5: triangular vs "golden mean" grid

YT 1 minute 5 seconds Nils Berglund Comparison between a cloaking device and a simple refracting layer YT 4 minutes 1 second Nils Berglund Collapse of a triangle lattice wave protection under waves arriving at an angle YT 4 minutes 42 seconds Nils Berglund A "golden spiral" wave protection

YT 2 minutes 13 seconds Nils Berglund Long-wavelength waves gradually destroying a randomized square grid of obstacles YT 3 minutes 1 second Nils Berglund Wave protection comparison 6: randomized square grid vs Sierpinski carpet YT 57 seconds Nils Berglund How a parabolic antenna works

YT 4 minutes 4 seconds Nils Berglund A wave protection alternating square and triangular grids YT 5 minutes 25 seconds Nils Berglund Blue noise, baby's got blue noise: a Poisson disc sampling wave protection YT 3 minutes 53 seconds Nils Berglund A self-healing wave protection

YT 2 minutes 11 seconds Nils Berglund Wave protection comparison 7: "Golden spiral" versus Poisson disc sampling YT 3 minutes 1 second Nils Berglund A wave traveling between two parabolic antennas YT 2 minutes 13 seconds Nils Berglund Wave protection comparison 8: "golden spiral" versus Poisson disc sampling with a step input

YT 4 minutes 21 seconds Nils Berglund Erosion of a wave protection YT 3 minutes 21 seconds Nils Berglund A parabolic resonating cavity YT 1 minute 57 seconds Nils Berglund Energy evolution in a square grid wave protection

YT 57 seconds Nils Berglund An elliptical resonator YT 2 minutes 13 seconds Nils Berglund Energy evolution in a Poisson disc wave protection YT 4 minutes 17 seconds Nils Berglund Video #200: "It's alive, it's alive!" Now the mangrove trees are moving...

YT 2 minutes 29 seconds Nils Berglund Energy evolution in a randomized square grid wave protection YT 7 minutes 49 seconds Nils Berglund A resonator made of four parabolas YT 2 minutes 53 seconds Nils Berglund Energy evolution in a "golden spiral" wave protection

YT 4 minutes 45 seconds Nils Berglund A moving and non-eroding mangrove YT 6 minutes 37 seconds Nils Berglund Penrose's solution to the illumination problem YT 5 minutes 25 seconds Nils Berglund Penrose's solution to the illumination problem, starting behind a mushroom

YT 5 minutes 21 seconds Nils Berglund A hexagonal parabolic resonator YT 3 minutes 5 seconds Nils Berglund Adding inertia: mangroves swaying in the surf YT 3 minutes 5 seconds Nils Berglund Energy evolution in a Sierpinski carpet wave protection

YT 6 minutes 33 seconds Nils Berglund A triangular parabolic resonator YT 2 minutes 47 seconds Nils Berglund A hyperbolic wave reflector YT 2 minutes 17 seconds Nils Berglund Energy average in a Penrose unilluminable room

YT 3 minutes 16 seconds Nils Berglund A mangrove with repelling trees YT 2 minutes 35 seconds Nils Berglund Energy evolution in a triangular grid wave protection YT 7 minutes 33 seconds Nils Berglund A pentagonal-parabolic resonator

YT 7 minutes 33 seconds Nils Berglund A pentagonal-parabolic resonator (perceptually uniform color map) YT 4 minutes 45 seconds Nils Berglund Waves in a Tokarsky unilluminable room YT 3 minutes 45 seconds Nils Berglund Swaying and repelling mangroves getting destroyed by the surf

YT 8 minutes 33 seconds Nils Berglund The color of magic: an octagonal parabolic resonator YT 2 minutes 5 seconds Nils Berglund One cannot (always) hear the shape of a drum YT 2 minutes 5 seconds Nils Berglund Average energy of a wave in a Tokarsky unilluminable room

YT 2 minutes 5 seconds Nils Berglund Escaping a "laser" with finite wavelength in a room of mirrors YT 2 minutes 5 seconds Nils Berglund Wave amplitude in two isospectral drums YT 3 minutes 41 seconds Nils Berglund Octarine Dream: Two eccentric waves in an octagonal-parabolic resonator

YT 3 minutes 1 second Nils Berglund Moving widdershins: A rotating parabolic resonator YT 3 minutes 25 seconds Nils Berglund Dante's 7th circle: a heptagonal parabolic resonator YT 6 minutes 5 seconds Nils Berglund A study in pink: parabolic resonator with 4 different focal points

YT 2 minutes 45 seconds Nils Berglund A rotating triangular parabolic resonator YT 3 minutes 5 seconds Nils Berglund Speak to me: Waves traveling between two parabolic antennae YT 6 minutes 37 seconds Nils Berglund Homophonic drums: two different drums that should sound the same

YT 3 minutes 9 seconds Nils Berglund Classics revisited: circular wave starting from the center of an ellipse YT 5 minutes 53 seconds Nils Berglund A rotating hexagonal parabolic resonator YT 4 minutes 53 seconds Nils Berglund Wave amplitude and average energy in homophonic drums

YT 3 minutes 9 seconds Nils Berglund Chaotic waves in a diamond resonator YT 3 minutes 33 seconds Nils Berglund The power of Inti: Four waves in a rotating four-sided parabolic resonator YT 2 minutes 53 seconds Nils Berglund Classics revisited: Wave in an ellipse starting from a focus

YT 4 minutes 33 seconds Nils Berglund Waves starting off center in a four-sided parabolic resonator YT 2 minutes 19 seconds Nils Berglund A fiery wave hitting random obstacles YT 4 minutes 15 seconds Nils Berglund The origin of the xenomorph: wave in a rotating ellipse

YT 3 minutes 1 second Nils Berglund Waves hitting a randomized square grid of hexagons YT 4 minutes 7 seconds Nils Berglund Waves in a von Koch snowflake fractal YT 1 minute Nils Berglund Average energy of a wave in a von Koch snowflake fractal

YT 2 minutes 12 seconds Nils Berglund A von Koch snowflake resonating cavity with refracting walls YT 3 minutes 25 seconds Nils Berglund Wave protection comparison 9: square grid of triangles vs square grid of circles YT 2 minutes 35 seconds Nils Berglund Wave protection comparison 10: triangles pointing right vs triangles pointing left

YT 1 minute 55 seconds Nils Berglund A crude model of seismic waves YT 3 minutes 23 seconds Nils Berglund Heavily peated: wave starting off center in a von Koch snowflake, average energy on log scale YT 3 minutes 3 seconds Nils Berglund 6 out of phase waves in a von Koch snowflake fractal

YT 5 minutes 13 seconds Nils Berglund Advent, advent... Average energy in a von Koch snowflake (log scale) YT 5 minutes 3 seconds Nils Berglund Waves in an unilluminable polygon without right angles YT 1 second [Private video]

YT 2 minutes 51 seconds Nils Berglund Waves in a seven-pointed star YT 4 minutes 39 seconds Nils Berglund Video #300: Waves in a star-shaped domain YT 1 minute 45 seconds Nils Berglund Wave protection comparison 11: triangles on a triangular grid vs triangles on a square grid

YT 2 minutes 25 seconds Nils Berglund Wave protection comparison 12: triangles pointing right vs randomly rotated triangles YT 3 minutes 23 seconds Nils Berglund Waves escaping a ring of triangular obstacles YT 5 minutes 43 seconds Nils Berglund Four waves in a nine-pointed star

YT 2 minutes 45 seconds Nils Berglund Wave protection comparison13: Triangle pointing right vs gradually rotated triangles YT 51 seconds Nils Berglund A Fresnel lens YT 2 minutes 11 seconds Nils Berglund Noise reflecting panels

YT 3 minutes 35 seconds Nils Berglund Waves escaping rings of staggered triangular obstacles YT 2 minutes 17 seconds Nils Berglund Wave protection comparison14: the effect of nonuniform horizontal spacings YT 3 minutes 43 seconds Nils Berglund Waves escaping a sunflower spiral

YT 1 minute 31 seconds Nils Berglund Two Fresnel lenses facing each other YT 1 minute 55 seconds Nils Berglund Déjeuner en paix: Waves in an anechoic chamber YT 3 minutes 3 seconds Nils Berglund Wave protection comparison 15: Left vs right-pointing triangles on a triangular grid

YT 1 second [Private video] YT 2 minutes 51 seconds Nils Berglund Waves escaping a ring of randomly rotated triangles YT 2 minutes 25 seconds Nils Berglund Mean energy in a Penrose unilluminable room, starting behind a mushroom

YT 3 minutes 13 seconds Nils Berglund Wave protection comparison 16: nonuniformly spaced triangles with two opposed directions YT 3 minutes 1 second Nils Berglund Raindrops in a von Koch snowflake YT 2 minutes 38 seconds Nils Berglund Two Fresnel lenses facing away from each other

YT 2 minutes 13 seconds Nils Berglund A quadratic resonance diffuser YT 1 minute 23 seconds Nils Berglund A Fresnel zone plate YT 2 minutes 3 seconds Nils Berglund A Fresnel zone plate, in higher resolution

YT 3 minutes 25 seconds Nils Berglund Comparison of a Fresnel lens and a circular lens YT 57 seconds Nils Berglund A circular lens YT 3 minutes 17 seconds Nils Berglund A circular lens, in higher resolution

YT 3 minutes 25 seconds Nils Berglund Video #400: Waves in an elliptical pond, in 3D! YT 3 minutes 1 second Nils Berglund Waves in a stadium billiard, in 3D YT 4 minutes 54 seconds Nils Berglund A four-sided parabolic resonator, in 3D

YT 3 minutes 41 seconds Nils Berglund Refraction through a raindrop, or a spherical lens YT 4 minutes 45 seconds Nils Berglund 3D waves in a von Koch snowflake fractal YT 4 minutes 25 seconds Nils Berglund 3D waves in a Penrose unilluminable room

YT 6 minutes 9 seconds Nils Berglund 3D waves flowing over Sierpinski carpets YT 2 minutes 21 seconds Nils Berglund A wave traveling between parabolic reflectors, in 3D YT 2 minutes 13 seconds Nils Berglund Young's double-slit experiment with waves, in 3D

YT 1 minute 57 seconds Nils Berglund A diffraction grating in 3D YT 3 minutes 13 seconds Nils Berglund A hexagonal parabolic resonator, in 3D YT 3 minutes 29 seconds Nils Berglund One cannot always hear the shape of a drum: Isospectral billiards in 3D

YT 1 second [Private video] YT 2 minutes 33 seconds Nils Berglund 3D rendering of the Buser-Conway-Doyle-Semmler homophonic drums YT 59 seconds Nils Berglund Waves hitting the Mandelbrot set, in 3D

YT 2 minutes 3 seconds Nils Berglund Waves hitting the Mandelbrot set, in 3D (longer version) YT 2 minutes 59 seconds Nils Berglund 3D waves in a Tokarsky unilluminable room without right angles YT 3 minutes 33 seconds Nils Berglund 3D waves in a 2D Julia set

YT 1 minute 55 seconds Nils Berglund Young's double-slit experiment with waves: phase representation in 3D YT 3 minutes 23 seconds Nils Berglund A heptagonal parabolic resonator, in 3D YT 2 minutes 55 seconds Nils Berglund 3D waves in a star-shaped domain, with log energy plot

YT 1 minute 37 seconds Nils Berglund Young's double-slit experiment with waves: log of energy and cumulative energy YT 3 minutes 29 seconds Nils Berglund Olympus Mons: Waves escaping a sunflower spiral of triangles, 3D rendering YT 2 minutes 29 seconds Nils Berglund Waves radiating from the Mandelbrot set, in 3D

YT 2 minutes 17 seconds Nils Berglund A circular lens, wave height and cumulative energy in 3D YT 3 minutes 21 seconds Nils Berglund Average energy in a Tokarsky room, in 3D YT 2 minutes 9 seconds Nils Berglund Average energy of a wave in an anechoic chamber (3D representation)

YT 2 minutes 9 seconds Nils Berglund Average energy of waves radiating from a von Koch snowflake YT 2 minutes 17 seconds Nils Berglund Waves radiating from the Mandelbrot set: Index of refraction decreasing with escape time YT 2 minutes 49 seconds Nils Berglund Waves radiating from the Mandelbrot set: Index of refraction increasing with decreasing escape time

YT 3 minutes 5 seconds Nils Berglund Square rooms: Comparison of an anechoic chamber and a room with flat walls YT 2 minutes 17 seconds Nils Berglund Square rooms 2: Comparison of an anechoic chamber and a room with flat walls, with dissipation YT 3 minutes 29 seconds Nils Berglund Waves radiating from the Mandelbrot set: wave speed proportional to escape time

YT 2 minutes 57 seconds Nils Berglund Waves in a quadratic resonance diffuser, rendered in 3D YT 2 minutes 17 seconds Nils Berglund A triangular grid wave protection, 3D plot YT 2 minutes 9 seconds Nils Berglund A randomized square grid wave protection, 3D plot

YT 3 minutes 29 seconds Nils Berglund Flying around Olympus Mons: Rotating view of waves escaping a sunflower ring of obstacles YT 2 minutes 57 seconds Nils Berglund Rotating view of waves radiating from the Mandelbrot set YT 3 minutes 5 seconds Nils Berglund Asymmetric quadratic resonance diffusers (rotating view)

YT 23 minutes 41 seconds Nils Berglund Video #500 : An elliptical retrospective with Beethoven YT 3 minutes 1 second Nils Berglund Waves escaping a grid of triangles on concentric rings YT 3 minutes 4 seconds Nils Berglund Waves escaping concentric rings of randomly rotated triangles

YT 3 minutes 37 seconds Nils Berglund Rotating view of waves radiating from a von Koch snowflake fractal YT 1 second [Private video] YT 1 minute 41 seconds Nils Berglund A sonic boom

YT 1 minute 45 seconds Nils Berglund 3D representation of a sonic boom YT 1 minute 53 seconds Nils Berglund A Fabry-Pérot interferometer YT 3 minutes 29 seconds Nils Berglund A Fabry-Pérot interferometer exposed to different wavelengths

YT 3 minutes 37 seconds Nils Berglund Waves on a topological surface of genus 2, in 3D YT 2 minutes 25 seconds Nils Berglund Waves on a topological surface of genus 2: Logarithm of the energy YT 1 minute 45 seconds Nils Berglund Energy of a sonic boom

YT 1 minute 37 seconds Nils Berglund Energy of a sonic boom, 3D representation YT 3 minutes 25 seconds Nils Berglund Response of a Fabry-Pérot interferometer to a chirp YT 4 minutes 9 seconds Nils Berglund [Epilepsy warning] Response of a Fabry-Pérot interferometer to a chirp, 3D rendering

YT 3 minutes 41 seconds Nils Berglund Response of a triangular grid coastal protection to a chirp YT 3 minutes 9 seconds Nils Berglund [Epilepsy warning] 3D view of the response of a triangular grid coastal protection to a chirp YT 3 minutes 9 seconds Nils Berglund [Epilepsy warning] 3D view of the response of a Poisson disc coastal protection to a chirp

YT 2 minutes 49 seconds Nils Berglund [Epilepsy warning] Wave protection comparison17: Effect of a chirp on regular and random grids YT 2 minutes 29 seconds Nils Berglund 3D rendering of 2D seismic waves YT 3 minutes 25 seconds Nils Berglund All you feel: A circular wave escaping a prism