It heats the air it zips through to five times the surface temperature of the sun. Still, around 90 percent of lightning-strike victims survive. Over the past three decades, lightning has killed an average of 51 people per year in the U.S. but left more than 500 injured and alive.
Computer vision syndrome. Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time.
Virus is the programming file.... A computer virus is a program that runs on your computer doing things you would not want it to do. Typically, this will involve doing dama â¦ ge to your hard drive, or sending mail without your permission. A virus gets on to your computer usually when you connect to the Internet. computer virus is a computer program that can copy itself  and infect a computer. The term virus is also commonly but  erroneously used to refer to other types of malwar â¦ e, including but  not limited to adware and spyware programs that do not have the  reproductive ability.