Inside the donut-shaped machine, a number of X rays are taken, each producing a small slice of the image that doctors need. When passing through dense tissue such as bone, the beams are weak and appear white in the CT images.
During World War I, Marie Curie, with help from her daughter Irene, worked to develop the use of X-radioactivity, including the mobile units which came to be known as 'Little Curies’, used to treat wounded soldiers.
The X ray dye makes it easier to see the organs and blood vessels when the pictures are developed. The intravenous contrast material is used for chest or pelvic scans, while oral-contrast material is used for abdominal scans.
The Big Bang theory says our universe was created when a tiny mass (billions X smaller than a proton) exploded and began expanding very rapidly into the stars and galaxies of today.
The Big Bang theory says our universe was created when a tiny mass (billions X smaller than a proton) exploded and began expanding very rapidly into the stars and galaxies of today.
U.S. cutter Polar Star has 25 times the punch of the Shokalskiy and 5.5 times the horsepower of the Chinese rescue ship Xue Long, or Snow Dragon, which is itself now trapped in thick, frozen ice along with the Russian vessel.
It is considered one of the fiercest creatures in the sea. Unlucky fish and unsuspecting seabirds were snared inside Xiphactinus's upturned jaw, which was lined with giant, fang-like teeth.
It is considered one of the fiercest creatures in the sea. Unlucky fish and unsuspecting seabirds were snared inside Xiphactinus's upturned jaw, which was lined with giant, fang-like teeth.
Google X is probably the only outfit in the world that would spend millions on Internet ballooning. Founded in early 2010, the research lab is specifically devoted to moon shots like self-driving cars and Google Glass.
Google X is probably the only outfit in the world that would spend millions on Internet ballooning. Founded in early 2010, the research lab is specifically devoted to moon shots like self-driving cars and Google Glass.
Google X is probably the only outfit in the world that would spend millions on Internet ballooning. Founded in early 2010, the research lab is specifically devoted to moon shots like self-driving cars and Google Glass.
Almost 100 million viewers tuned in to see the Bears blow out the Patriots 46-10 in Super Bowl XX. The Patriots were considered a cinderella team that year, but were soundly beaten by the Bear's revolutionary 46 defense.
Almost 100 million viewers tuned in to see the Bears blow out the Patriots 46-10 in Super Bowl XX. The Patriots were considered a cinderella team that year, but were soundly beaten by the Bear's revolutionary 46 defense.
Almost 100 million viewers tuned in to see the Bears blow out the Patriots 46-10 in Super Bowl XX. The Patriots were considered a cinderella team that year, but were soundly beaten by the Bear's revolutionary 46 defense.
The Big Bang theory says our universe was created when a tiny (billions X smaller than a proton), super-dense, super-hot mass exploded and began expanding very rapidly, eventually cooling into the stars and galaxies of today.
The Big Bang theory says our universe was created when a tiny (billions X smaller than a proton), super-dense, super-hot mass exploded and began expanding very rapidly, eventually cooling into the stars and galaxies of today.
While no one has seen or heard from him in weeks, Xi Jinping was listed as expressing his sympathies on the death of a former general. The report does little to tamp down the rumors surrounding China's next president.
Xi Jinping, the man tapped as China's next president, hasn't been seen or heard from since September first, prompting intense speculation by the media that he is either injured, or even dead.
The jailed Chinese dissident Liu Xiaobo has been awarded the 2010 Nobel Peace Prize. The committee praised Mr Liu for his long and non-violent struggle for human rights in China.
The jailed Chinese dissident Liu Xiaobo has been awarded the 2010 Nobel Peace Prize. The committee praised Mr Liu for his long and non-violent struggle for human rights in China.
To slake Sao Paulo's thirst for electricity Brazil will erect a dam on the Xingu River, a plan which may severely impact the lives of the Kayapo natives.
To slake Sao Paulo's thirst for electricity Brazil will erect a dam on the Xingu River, a plan which may severely impact the lives of the Kayapo natives.
Inspired by a gauntlet thrown down by the X Prize Foundation, and a million dollar incentive, the Illinois-based company Elastec has developed a revolutionary oil skimmer.
Inspired by a gauntlet thrown down by the X Prize Foundation, and a million dollar incentive, the Illinois-based company Elastec has developed a revolutionary oil skimmer.