• Trends
  • Topics
  • Nodes
Search for keywords, #hashtags, $sites, add a dash to exclude, e.g. -$theonion.com

From phys.org

Scientists observe 'negative time' in quantum experiments

6 6

Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter.

#time #uoft #physics #quantummechanics #science

17h ago