Tools

Make and convert

• 3D Photo

  A depth model guesses relative depth from one photo, not distances in meters.

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• 3D Video

  A video is a string of photos, and a computer can guess how far away each part of a photo is.

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• 3D World

  A video is a string of photos from a moving camera.

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• Model to Splats

  A 3D model is usually a mesh: a net of flat triangles with colors or a picture (a texture) painted on them.

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• Song Landscape

  A song is a wave, but you can also see what it is made of.

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Open your own files

• Photo Album

  A photo album keeps printed photos on thick pages.

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• Picture Frame

  A picture frame protects a photo and sets it apart from the wall.

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• Picture Lab

  The Picture lab shows a page, a photo, a GIF or a video as Gaussian splats: thousands of small, flat, colored discs, the same stuff every splash here is made of.

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• Splash Book

  A book is a stack of pages bound along one edge, so you can turn them one at a time.

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• Molecule

  A molecule is a group of atoms held together by chemical bonds.

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• Thermal Ellipsoids

  Crystallography describes an atom's average position and spread with a displacement tensor.

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Scan and measure

• Airport X-ray

  An airport scanner sends a fan of X-rays through each bag as the belt carries it past, and a row of detectors measures what gets through, one line at a time.

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• Electron Microscope

  A scanning electron microscope sweeps a fine beam of electrons across a sample in a vacuum.

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• Fruit MRI

  An MRI scanner (magnetic resonance imaging) uses no X-rays.

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• CT Explained

  A CT scanner (computed tomography) turns an X-ray tube and a curved row of detectors around the object, taking hundreds of views from every side.

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• Walnut CT

  This is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point.

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• Room Echo Meter

  Reverberation is sound that keeps bouncing around a room after its source stops.

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• Super-Res Microscope

  Ordinary light microscopy struggles to separate nearby objects about 200 to 300 nanometers apart.

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• Thermal Camera

  Everything gives off infrared light, more the warmer it is.

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QR codes

• QR Code

  A QR code stores text in a square grid of dark and light modules.

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• QR Explained

  A QR code is a grid of dark and light modules with a fixed plan.

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• QR Damage Lab

  QR codes still scan when part of them is lost, because error correction can rebuild missing codewords: about 7, 15, 25 or 30 percent at levels L, M, Q and H.

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• Triple QR

  One square holds three QR codes here: the first sets each module's red, the second its green and the third its blue.

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• Picture QR

  A QR reader samples the center of each module.

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• Video QR

  A QR reader only looks at the middle of each square.

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Sound and light

• Sound in a Box

  Sand on a ringing plate gathers on the lines that stay still.

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• Chladni Plate

  In 1787 Ernst Chladni sprinkled sand on a metal plate and drew a violin bow along its edge.

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• Screen

  A screen made of splats shows a video or a GIF: every pixel of the picture is a small splat whose color changes with each frame.

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• Splat Mirror

  Tap “Start camera” and each splat takes the color of its place in the picture, so the mirror shows you, live.

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In every Splash

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