https://www.wissenschaft.de/wp-content/uploads/2/4/243296.mp4
Researchers have developed a device that can still draw electrical energy from the weak draft of air that occurs during a brisk walk....
https://www.youtube.com/watch?v=H0jb-fT6tz0
Filigree lattice structures with astonishing features: The skeletons of the glass sponges could inspire architects and technicians to build optimized structures, researchers report. ...