MIT physicists have directly observed ultracold atoms forming “quantum tornadoes” in a spinning fluid of ultracold atoms. The observations record a key crossover from classical to quantum behavior.
No hot air: nothing stops the spread of Covid-19 quite like fresh air Relax when outdoors, say experts, with Irish analysis revealing that only one in 1,000 infections is acquired outside 12 April 2021 - 19:45
CHILLAX University of Reading professor Simon Clarke says the Irish analysis was yet more evidence that people should be relatively relaxed about outdoor activities that have attracted criticism in the past, such as going to the beach . Image: Supplied
As SA waits for its Covid-19 vaccine rollout to start, new evidence suggests the best weapons in our preventive arsenal are free and plentiful: fresh air and good ventilation.