No One Can Explain Why Planes Stay In The Air
On a strictly mathematical level, engineers know how to design planes that will stay aloft. But equations don’t explain why aerodynamic lift occurs.
There are two competing theories that illuminate the forces and factors of lift. Both are incomplete explanations.
Active, polymorphic material (“Utility Fog”) can be designed as a conglomeration of 100-micron robotic cells (‘foglets’). Such robots could be built with the techniques of molecular nanotechnology […] The Fog acts as a continuous bridge between actual physical reality and virtual reality.
photo { Joel Meyerowitz, Times Square, New York City, 1963 }
The researchers recruited 25 non-obese adult subjects. All had moderate sleep apnea, with somewhere between 15 and 30 episodes per hour at night. (All them also reported that they snored.)
Fourteen of these subjects were randomly assigned to learn the didgeridoo. […] They learned proper lip technique and circular breathing (inhaling through the nose while continuously blowing on the instrument). They also had to practice at home for at least 20 minutes a day, five days a week.
After four months […] people who’d been playing the didgeridoo had fewer sleep apnea events at night. And they reported feeling significantly less tired during the day.
Breccia marble, copper, steel { Elena Damiani, Rude Rocks No. 3 and No. 2, 2015 }
