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Music video by Rihanna performing Take A Bow. YouTube view counts pre-VEVO: 66288884. (C) 2008 The Island Def Jam Music Group.
Music video by Rihanna performing Rehab. YouTube view counts pre-VEVO: 19591123. (C) 2007 The Island Def Jam Music Group.
A substitute teacher from the inner city refuses to be messed with while taking attendance.
Music video by Rihanna performing Unfaithful. (C) 2006 The Island Def Jam Music Group #VEVOCertified on Feb. 15, 2012. http://vevo.com/certified http://youtu...
Watch Season 1 of Mortal Kombat Legacy here: http://www.youtube.com/channel/SWVkIoQKmEa4I The Mortal Kombat Legacy continues in Season 2 as Liu Kang, Kung La...
Watch the Behind The Scenes in this link below: http://youtu.be/36CLFOyaml0 Make sure to subscribe to this channel for new vids each week! http://youtube.com...
Music video by P!nk performing Try (The Truth About Love - Live From Los Angeles). (C) 2012 RCA Records, a division of Sony Music Entertainment.
"Just One Last Time" feat. Taped Rai. Available to download on iTunes including remixes of : Tiësto, HARD ROCK SOFA & Deniz Koyu http://smarturl.it/DGJustOne...
YOLO is available on iTunes now! http://smarturl.it/lonelyIslandYolo New album coming soon... Check out the awesome band the music in YOLO is sampled from Th...
Macklemore & Ryan Lewis present the official music video for Can't Hold Us feat. Ray Dalton. Can't Hold Us on iTunes: https://itunes.apple.com/us/album/cant-...
This video accidentally turned out kind of sad, ME SO SOWWY IT NOT POSED TO BE SAD WHO WANTS HUGS AND COOKIES? Also, FYI for anyone attempting this, it takes...
While its continued use is discouraged by NIST and other bodies, the curie is widely used throughout the US government and industry.
- 1 Ci = 3.7 × 1010 Bq = 37 GBq
- 1 Bq ≅ 2.703 × 10−11 Ci
Another commonly used measure of radioactivity is the microcurie:
- 1 μCi = 3.7 × 104 disintegrations per second = 2.22 × 106 disintegrations per minute
A radiotherapy machine may have roughly 1000 Ci of a radioisotope such as caesium-137 or cobalt-60. This quantity of radioactivity can produce serious health effects with only a few minutes of close-range, un-shielded exposure.
The typical human body contains roughly 0.1 μCi of naturally occurring potassium-40.
Curies as a measure of quantity 
Curies are occasionally used to express a quantity of radioactive material rather than a decay rate, such as when one refers to 1 Ci of caesium-137. This may be interpreted as the number of atoms that would produce 1 Ci of radiation. The rules of radioactive decay may be used convert this to an actual number of atoms. They state that 1 Ci of radioactive atoms would follow the expression:
- N (atoms) * λ (s-1) = 1 Ci = 3.7 × 1010 (Bq)
- N = 3.7 × 1010 / λ
where λ is the decay constant in (s−1).
The use of Curies to measure quantity is unique in that 1 Ci of a nuclide will be fewer Curies at any later time.
See also 
- Geiger counter
- Ionizing radiation
- Radiation exposure
- Radiation poisoning
- United Nations Scientific Committee on the Effects of Atomic Radiation