Lightning strikes, lasting less than a half-millionth of a second, often scorch the skin but don't cause internal burns. Just as crucial, most of the electricity in a lightning bolt does not pass through the body. Rather, it dissipates over the skin in what's known as a flashover. Vernon Cooray, a lightning scientist at Uppsala University in Sweden, explains the phenomenon by contrasting the ways a human body and a tree react when struck.
Human-computer interaction (HCI) is the study and planned design of human and computer activities. HCI uses productivity, safety and entertainment to support and fulfill human-computer activities and is applied to various types of computer systems, including air traffic control, nuclear processing, offices and computer gaming.
Human-Computer Interaction Design. Our program is designed to change the way you think. Human-computer interaction (HCI) has traditionally been the domain of engineering and psychology. Here, we approach it from the perspective of design.Our focus goes beyond simply using technology to solve a problem.he goal of the human-computer interaction design (HCI/d) program is to teach you to think like a designer. Our approach is research-based, but never rigid. Though students follow a highly structured curriculum that prepares them for a professional career, there is plenty of room to pursue individual interests.