October 17, 2005
Physicist Mounir Laroussi’s “plasma pencil” generates a “cold plasma,” which can be used to kill germs. In the future, it might be used to destroy tumors without damaging surrounding tissue.
When he turns the pencil on, it blows a high pitched whistle as a glowing, blue-violet beam about 2 inches long instantly appears at one end. Stick your finger in its path and you only feel a cool breeze,… read more