Recently US researchers have made a movie on a moving electron in a container. Container is full of cold liquid helium. High intensity sound puslses are being used by the Humphrey Maris, a professor of physics at Brown University in Providence, R.I., and doctoral candidate Wei Guo for capturing image of this subatomic particle.
One octillionth of a gram, i.e 26 zeroes are following this decimal point is the weight of electron and it appears as points of light. According to Maris, “We were astonished when we first saw an electron moving across the screen.”
This was made possible with the usage of sound in expanding bubbles formed all over the electrons. It moves all over the liquid helium. A light is being flashed for capturing an image.
While movement of electron through the helium, it keeps repelling atoms around. Thus, it creates a space for bubbles. As bubbles cannot be seen through naked eyes, sound pulses are used for their expansion. They expand up to eight micons.
In the year 2006, this video was shown first in the International Symposium on Quantum Fluids and Solids in Kyoto, Japan. At the May end, images were published in an online journal Low Temperature Physics.
Image:superstruny
Via:cbc
