A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy (in so-called Brownian motion), physicist Mark ...

The instantaneous velocity of a Brownian particle has been measured for the first time, a result Einstein believed would be impossible. By trapping a micron-sized silica bead in air in an optical ...

Particle Image Velocimetry is a state-of-the-art non-intrusive flow measurement technique. Small tracer particles advected by the flow are illuminated twice by very short pulses of a laser light sheet ...

Equipment: A tennis ball on a string. What it does: Swing the ball on the string to show circular motion. Release the ball to show the instantaneous velocity of the ball. Concepts Demonstrated: ...

A century after Albert Einstein said we would never be able to observe the instantaneous velocity of tiny particles as they randomly shake and shimmy, so called Brownian motion, physicist Mark Raizen ...

One must get the methods of measuring position and time working together if we are to obtain a reliable representation of motion. To that end we have developed a unique system composed of elements ...

The Tomographic Particle Image Velocimetry method is a relatively new extension of the PIV measurement technique with the specific ability to determine three-dimensional velocity vector fields [1].