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.
Due to server maintenance we are not accepting new questions at this moment. How Does The Lcd Screen Work How Does It Emit Visible Light. LCD vs LED vs Plasma 2013 How They Work : An LED will begin to emit light when the onvoltage is exceeded.