Wright brothers unstable aircraft pilot control

Renaissance humanists used the label for an era they saw as standing between classical antiquity and their own time. They viewed their scholarship as restoring a direct link to the ancient world, so the name reflects their view of the period, not just a neutral label.

Some mantis shrimp swing specialized clubs so quickly that the surrounding water forms vapor bubbles. The first impact comes from the club itself; collapsing bubbles then create additional pressure pulses through cavitation. These forces can help crack hard shells. The animal's weapon combines a mechanical blow with an extreme fluid-physics effect.