(PhysOrg.com) -- By making multiple objects appear to look like only one using a "perfect lens," scientists have demonstrated a new optical illusion that could have practical applications in lighting systems. Normally, a ...
(PhysOrg.com) -- In a twist on the concept of an invisibility cloak, researchers have designed a material that not only makes an object invisible, but also generates one or more virtual images in its place. Because it doesn't ...
(PhysOrg.com) -- Science fiction and fantasy tales are full of the ability to "cloak" characters with invisibility. Whether it is a spaceship with a cloaking device, or a young wizard with an invisibility cloak, the interest ...
(Phys.org)—A team of researchers from France and the Slovak Republic has proposed a theory to explain the water-like streaks that appear seasonally on the surface of Mars, which do not involve water. In their paper published ...
New research using data from NASA's Cassini mission suggests most of the eruptions from Saturn's moon Enceladus might be diffuse curtains rather than discrete jets. Many features that appear to be individual jets of material ...
Space Exploration
May 6, 2015
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745
(Phys.org) —A diverse group of researchers led by a team out of NASA's Goddard Space Flight Center has dispelled the notion that the Amazon basin becomes greener during times of less rain. In their paper published in the ...
(PhysOrg.com) -- An optical illusion is about to be trialed in West Vancouver, Canada, starting September 7, to try to jolt reckless drivers into slowing down.
Researchers at the University of Bristol have found why zebra fur is thinly striped and sharply outlined.
Evolution
Feb 20, 2023
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225
Many prey species have eyespot markings that are believed to ward off predators. But how, and does a predator's angle of approach make them less effective? Dr. Hannah Rowland and Dr. John Skelhorn write for Frontiers about ...
Plants & Animals
Oct 12, 2022
0
27
Watch for the patterns created as the circles move across each other. Those patterns, created by two sets of lines offset from each other, are called moiré (pronounced mwar-AY) effects. As optical illusions, moiré patterns ...
General Physics
Jun 14, 2022
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