The season of preparation for Easter closed with the Great or Black Week, also known as the Holy Week. The Thursday of Holy Week commemorated the institution of the Holy Supper. Since the Gospel of the day was John 13:1-15, the day was also known as the Day of Foot Washing.
Cathode ray tube, or CRT, screens like those that were once used for computer monitors and TV sets actually do emit low levels of UV radiation. However, these levels are significantly lower than that of the sun. The fluorescent light bulb above your head emit actually emits more UV light than a CRT monitor.
Re: Computer suddenlly shut down, black screen on boot up. i cant see anything on screen my monitor just goes to sleep after it tries to find a signal, i went into the bios screen or whatever and changed the graphics chip to the onboard chip and now i can switch it back in order to see anything.