Doodling or making quick notes with pencil and paper is so old school. Cheap. Dependable. Easy to use. Erasable. But old school. Enter the digital sketchpad/notepad. No wasted paper. Tree friendly.
Researchers have developed an automatic drawing machine that uses pens and pencils to draw metamaterials -- artificially engineered composite materials that derive their properties from patterned ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback