- published: 06 May 2013
- views: 15916
A black light, also referred to as a UV-A light, Wood's light, or simply ultraviolet light, is a lamp that emits short wave (UV-A) ultraviolet light and not much visible light. The lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, so the lamp has a dim violet glow when operating. Black light bulbs which have this filter have a lighting industry designation that includes the letters "BLB".
A second type of bulb, which is also called a black light, produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating. These are made for use in "bug zapper" insect traps and are identified by the industry designation "BL".
Black light sources may be specially designed fluorescent lamps, mercury vapor lamps, light-emitting diodes, lasers, or incandescent lamps. In medicine, forensics, and some other scientific fields, such a light source is referred to as a Wood's lamp (named after Robert Williams Wood).
Medina (/məˈdiːnə/; Arabic: المدينة المنورة, al-Madīnah al-Munawwarah, "the radiant city"; or المدينة, al-Madīnah, "the city"), also transliterated as Madīnah, is a city in the Hejaz, and the capital of the Al Madinah Region of Saudi Arabia. The city contains al-Masjid an-Nabawi ("the Prophet's Mosque"), which is the burial place of the Islamic prophet Muhammad, and is the second-holiest city in Islam after Mecca.
Medina was Muhammad's destination after his Hijrah from Mecca, and became the capital of a rapidly increasing Muslim Empire, first under Muhammad's leadership, and then under the first four Rashidun caliphs, Abu Bakr, Umar, Uthman, and Ali. It served as the power base of Islam in its first century where the early Muslim community developed. Medina is home to the three oldest mosques, namely the Quba Mosque, al-Masjid an-Nabawi, and Masjid al-Qiblatayn ("the mosque of the two qiblas"). Muslims believe that the chronologically final surahs of the Quran were revealed to Muhammad in Medina, and are called Medinan surahs in contrast to the earlier Meccan surahs.
Light is an electromagnetic radiation, part of which stimulates the sense of vision.
Light may also refer to:
Black is the darkest color, the result of the absence of or complete absorption of light. It is the opposite of white (the combined spectrum of color or light). It is an achromatic color, literally a color without color or hue. It is one of the four primary colors in the CMYK color model, along with cyan, yellow, and magenta, used in color printing to produce all the other colors.
Black was one of the first colors used by artists in neolithic cave paintings. In the 14th century, it began to be worn by royalty, the clergy, judges and government officials in much of Europe. It became the color worn by English romantic poets, businessmen and statesmen in the 19th century, and a high fashion color in the 20th century.
In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches and magic. According to surveys in Europe and North America, it is the color most commonly associated with mourning, the end, secrets, magic, force, violence, evil, and elegance.
Fan made video of Medina's Black Lights. Original Video: https://www.youtube.com/watch?v=ql4JrQ7ZuS0
Remastered SongMiX
Dancy track with catchy vocals! Black Lights by Medina =) Lyrics below! Subscribe to us now for a new song everyday → http://www.youtube.com/channel/UCmuhwo1AwIFFaxQO-t-ftyA?sub_confirmation=1 Listen to all our songs in one Playlist "All RandomGlobe =)" → http://www.youtube.com/playlist?list=PLfXva8MToMpmz4VBDaW2y03FuTXQoT9DT Our other playlists Listen to our "Dance Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpnme7YlFYe9lDWlrZphp3eL Listen to our "Chill Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpkFIhjc6Gfhrf4NqQaT8kXp Listen to our "Drum and Bass Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpkDexoXwLAJdwA6WoEWhuW1 Medina http://medinamusic.dk https://www.facebook.com/MedinaMusic https://twitter.com/medinamus...
Medina performing "Black Lights", the English version of "Lyser i mørke", in Flensburg at the kickoff of her Forever concert tour through Germany At around 01:08 she's waving to me! :D
Cover of Medina's song Black Lights (Lyser i mørke)
Pes
My goal for 2013 is to try to upload a musical video once a week, so let's see whether I can keep up! Here is a cover of Medina's "Black Lights" with some "Requiem for a Dream" thrown into the mix.
Fan made video of Medina's Black Lights. Original Video: https://www.youtube.com/watch?v=ql4JrQ7ZuS0
Remastered SongMiX
Dancy track with catchy vocals! Black Lights by Medina =) Lyrics below! Subscribe to us now for a new song everyday → http://www.youtube.com/channel/UCmuhwo1AwIFFaxQO-t-ftyA?sub_confirmation=1 Listen to all our songs in one Playlist "All RandomGlobe =)" → http://www.youtube.com/playlist?list=PLfXva8MToMpmz4VBDaW2y03FuTXQoT9DT Our other playlists Listen to our "Dance Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpnme7YlFYe9lDWlrZphp3eL Listen to our "Chill Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpkFIhjc6Gfhrf4NqQaT8kXp Listen to our "Drum and Bass Music =)" playlist → https://www.youtube.com/playlist?list=PLfXva8MToMpkDexoXwLAJdwA6WoEWhuW1 Medina http://medinamusic.dk https://www.facebook.com/MedinaMusic https://twitter.com/medinamus...
Medina performing "Black Lights", the English version of "Lyser i mørke", in Flensburg at the kickoff of her Forever concert tour through Germany At around 01:08 she's waving to me! :D
Cover of Medina's song Black Lights (Lyser i mørke)
Pes
My goal for 2013 is to try to upload a musical video once a week, so let's see whether I can keep up! Here is a cover of Medina's "Black Lights" with some "Requiem for a Dream" thrown into the mix.