Apaonline1 week agophilosophyThe End of the UniverseTime can be reversed in quantum systems under certain correlations, challenging traditional views of the arrow of time. [ more ]
www.scientificamerican.com9 months agoScienceLight Can Travel Backward in Time (Sort Of)Retrograde time travel is theoretically possible in certain scenarios within wave physics. Creating a time reflection, where the optical properties along a ray's path change sharply at a specific moment in time, can reverse time. [ more ]