Materials scientists are measuring the rolling friction of tiny, micrometer-sized particles. These measurements permit them to better understand everyday products such as concrete. For the first time, ...
The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...
When most people see a leafhopper in their backyard garden, they notice little more than a tiny green or striped insect flicking from leaf to leaf. But these insects are actually master engineers, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback