8 habits that actually support your immune system before cold and flu season
Sleep, vaccination timing, handwashing technique, stress management — the specific habits research actually supports, and the ones "immune-boosting" marketing exaggerates [...]
This company wants to stop underwater drones and even submarines with a whole new form of sonar technology
A sensor that listens silently, then calls in a second one to ping the target, could be a key pairing that helps the US Navy track underwater drones before they reach the pier. [...]
9 things happening underwater during a heat wave that most people never notice
Oxygen levels crashing, fish kills, harmful algae blooms — the documented ways extreme heat reshapes a lake or river long before the water itself looks any different [...]