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Modern 3D Lichtenberg figures or "electrical treeing" in a block of clear acrylic, created by irradiating the block with an electron beam. Actual size: 80 mm × 80 mm × 50 mm (3 in × 3 in × 2 in) Lichtenberg figures are generated by a sliding spark discharge on the flask with a mixture of gases. Structural differences between the "positive ...
What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL; Download QR code
What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL; Download QR code
Fig. 1. HSL (a–d) and HSV (e–h). Above (a, e): cut-away 3D models of each. Below: two-dimensional plots showing two of a model's three parameters at once, holding the other constant: cylindrical shells (b, f) of constant saturation, in this case the outside surface of each cylinder; horizontal cross-sections (c, g) of constant HSL lightness or HSV value, in this case the slices halfway ...
The work features 13 lightning bolts ranging in height from 13 to 30 feet (4.0 to 9.1 m) shooting into the ground over a 180-by-160-foot (55 by 49 m) area. On a main sign-like structure were four boxes measuring 8 by 10 by 2 feet (2.44 m × 3.05 m × 0.61 m) with images silk-screened on the back dealing with contemporary social issues.
A sprite at the horizon, with lightning below in the troposphere and above the green line of airglow at the upper mesopause and border to space (the bright light above is the Moon). First color image of a sprite, taken from an aircraft
This category collects images that are scans, screen captures, photos, and/or illustrations of the various Green Lanterns and related characters and intellectual properties for which DC Comics holds the copyright and/or trademark.
Size of this PNG preview of this SVG file: 70 × 172 pixels. Other resolutions: 97 × 240 pixels | 195 × 480 pixels | 312 × 768 pixels | 416 × 1,024 pixels | 833 × 2,048 pixels . Original file (SVG file, nominally 70 × 172 pixels, file size: 2 KB)