HOME >> BIOLOGY >> NEWS
Researchers at Vanderbilt's Free-Electron Laser Center are developing new forms of laser surgery, improved X-ray technology, and better methods for protein identification

The manifold interactions of light and matter play a critical role in the drama of life. They provide the energy that makes life possible, as well as the vision required to appreciate its beauty. In the last 200 years, scientists have learned a tremendous amount about the nature of light and of matter. Yet there are still significant gaps in our understanding of this fundamental interplay which the Free-Electron Laser (FEL) is helping to bridge.

The different colors of the rainbow and the spectrum of colors produced by a prism illustrate one of light's fundamental characteristics: It exists in a virtually infinite number of shades. Each color is produced by an electromagnetic wave of a specific wavelength, frequency and energy. Visible light spans only a tiny sliver of the entire electromagnetic spectrum. Bluer colors have shorter wavelengths, higher frequencies and carry more energy. Redder colors have longer wavelengths, lower frequencies and carry less energy. The lower end of the spectrum ranges from radio waves that are hundreds of meters long, through millimeter-sized microwaves, to infrared radiation associated with radiant heat. The upper end proceeds from the ultraviolet rays that cause sunburn, through X-rays, up to gamma rays with wavelengths less than the diameter of an atom and energies three trillion times greater than typical radio waves.

Each color, or wavelength, interacts with matter in a different way. Radio waves push around free-flowing electrons, generating electrical signals in metal antennae. Microwaves cause the water molecules to vibrate inside solid food, producing the heat that cooks it. Ultraviolet radiation from the sun breaks down DNA. Different materials absorb and radiate light at different wavelengths. The patterns of absorption and radiation form universal signatures that allow scientists to identify the elemental composition of a material, whether it is in a laboratory on earth or surrounding a star in a distant
'"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
18-Oct-2001


Page: 1 2 3 4

Related biology news :

1. Researchers determine genetic cause of Timothy syndrome
2. Researchers find color sensitive atomic switch in bacteria
3. Researchers identify protein promoting vascular tumor growth
4. Researchers devise potent new tools to curb ivory poaching
5. Researchers create nanotubes that change colors, form nanocarpet and kill bacteria
6. Researchers ID chlorophyll-regulating gene
7. Researchers develop fast track way to discover how cells are regulated
8. Researchers identify distinctive signature for metastatic prostate cancer
9. Researchers report new gene test for isolated cleft lip and palate
10. Researchers discover why mutant gene causes colon cancer
11. Researchers identify the genomes controlling elements

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/5/2018)... ... December 03, 2018 , ... uBiome, the leader in microbial ... the Division of Gastroenterology and Hepatology at UC San Diego and staff gastroenterologist ... the board of leading scientists and doctors from around the world, Dr. Zarrinpar ...
(Date:12/5/2018)... WORTH, Texas (PRWEB) , ... December 04, 2018 ... ... services supplier, has announced the much-anticipated launch of their 100-liter (26 gallon) SAFEthread ... SAFEthread Drum in 2017, which brought a much-needed modern redesign to ...
(Date:11/29/2018)... ... November 29, 2018 , ... Tosoh ... the intention of acquiring full ownership. The transaction was approved by the Board ... November 14, 2018. “We are extremely pleased to team up with Tosoh Bioscience ...
Breaking Biology News(10 mins):
(Date:11/11/2018)... ... , ... Triple W, an innovator of connected health devices, today announced that ... DFree ®, the first health tech wearable device for incontinence that monitors how full ... The announcement was made during CES Unveiled New York, an invite-only tech event bringing ...
(Date:11/7/2018)... (PRWEB) , ... November 07, 2018 , ... ... has been leading a campaign to increase awareness of the adult tissue stem ... During the month of November, the company is intensifying this effort with new ...
(Date:11/5/2018)... (PRWEB) , ... November 05, 2018 , ... ... and telemedicine company backed by Siemens Healthineers and several healthcare VC firms announces ... radiology solution and making a history by purchasing tokens and obtaining its first ...
(Date:11/3/2018)... ... ... Triangle Insights Group, a premier life sciences consulting firm, announced today that ... the United States, appearing on this year’s Inc. 5000 list. Since its inception ... over the previous three years. , Separately, Triangle Insights was also ranked on ...
Breaking Biology Technology:
Cached News: