X-Ray

Wind turbines harness MRI tech

Publication: msnbc.com   Date: September 7, 2011   View Article

The high-tech magnets in modern MRI systems encountered at the doctor’s office may soon generate electricity from the wind, according to researchers at the General Electric Company.

MRI systems are the tube-like contraptions that make images of damaged hearts, torn ligaments, brains, and other body tissues. Instead of X-rays, the images are made with superconducting magnets, which are electromagnets made from coils of superconducting wire.

X-rays provide nano views

Publication: msnbc.com   Date: August 10, 2011   View Article

A new lens-less microscope that harnesses X-rays is able to see details at the scale of a single nanometer and could help usher in an era of smaller computer hard disks that hold more memory, researchers report in a new study.

The technique is also scalable, and as X-ray sources are improved, the technique should allow researchers to resolve down to the subatomic scale, Oleg Shpyrko, an assistant professor of physics at the University of California at San Diego, told me today.

Oldest Fossil Brain Found in “Bizarre” Prehistoric Fish

Publication: National Geographic News   Date: March 3, 2009   View Article

Digital x-ray images of a “bizarre” 300 million-year-old shark relative have revealed the oldest known fossilized brain, researchers announced yesterday.

The unusual discovery raises hopes that scientists will find other ancient brains and use them to study how gray matter has evolved, said John Maisey, a paleontologist at the American Museum of Natural History in New York.

Iceman Bled Out From Arrow Wound, X-Ray Scan Reveals

Publication: National Geographic News   Date: June 7, 2007   View Article

The prehistoric iceman known as Oetzi died from an arrow-inflicted lesion to an artery near his left shoulder, modern x-ray technology shows.

The finding clarifies the mystery of how the 46-year-old man died some 5,300 years ago high up on a mountain glacier in northern Italy.

New Security Scanner Sees Through Clothes, But With Modesty

Publication: National Geographic News   Date: March 27, 2007   View Article

A new sensor technology under development promises to give security screeners a peek through clothing without revealing the naked details, a scientist says.

X-Ray “Vision” Unlocking Black Hole Mysteries

Publication: National Geographic News   Date: May 24, 2005   View Article

Advances in x-ray astronomy are resolving some enduring mysteries about black holes, scientists say. Black holes are places in space where the force of gravity is so strong that nothing, not even light, can escape.

In recent years scientists have learned to find black holes by sweeping the skies with space-based telescopes equipped with x-ray “vision.” X-rays are a high-energy form of light that is invisible to the human eye.

© 2008-2010 Collected Writings By John Roach