In the 20th century the Pitot tube was adapted to become the key instrument in measuring the air speed of planes.
He came up with a breakthrough idea in the field of fluid dynamics, with a device that became known as the Pitot tube.
In this case, suspicion fell on an instrument called a Pitot tube that measures the speed at which the airplane is flying.
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.