In the 20th century the Pitot tube was adapted to become the key instrument in measuring the air speed of planes.
In this case, suspicion fell on an instrument called a Pitot tube that measures the speed at which the airplane is flying.
He came up with a breakthrough idea in the field of fluid dynamics, with a device that became known as the Pitot tube.
The Pitot tube also fails to give measurable indications of very low velocities.
The Pitot tube, like the hydrodynamometer, does not require a time observation.