(PhysOrg.com) -- One of the biggest unsolved problems in astrophysics is that galaxies and galaxy clusters rotate faster than expected, given the amount of existing baryonic (normal) matter. The fast orbits require a larger ...
(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.
(PhysOrg.com) -- Since 2000, John Pendry's work on metamaterials has been at the van guard of efforts to create a perfect image - images with perfect resolution that can stem from light being moved in odd directions to create, ...
Optics & Photonics
Sep 29, 2009
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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
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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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211
Many coronal loops—ropey strands of plasma that scientists have long thought existed in the Sun's atmosphere—may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we ...
Astronomy
Mar 2, 2022
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625
A team of researchers working at the University of Padova, in Italy, has found that like humans and many other animals, guppies are susceptible to optical illusions. In their paper published in the journal Biology Letters, ...
The mystery of why zebras have their characteristic stripes has perplexed researchers for over a century.
Plants & Animals
Aug 18, 2020
1
774
A breakthrough in fertility science by researchers from Bristol and Mexico has shattered the universally accepted view of how sperm 'swim'.
Cell & Microbiology
Jul 31, 2020
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