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:2/12/2019)... SASKATOON, Canada (PRWEB) , ... February 12, 2019 ... ... immediately it will begin operating under its new name, KEYLEAF. The company ... more of its own plant-based extracts and ingredients as finished products under the ...
(Date:2/2/2019)... ... January 31, 2019 , ... ... geared toward clinical operations executives and focusing on all facets of clinical trial ... project management, portfolio management, resource management, patient engagement, and more. , “We ...
(Date:1/25/2019)... ... January 24, 2019 , ... ... PhD, Assistant Professor of Microbiology at the Jackson Laboratory (JAX), to its Scientific ... world, Dr. Oh will bring to uBiome expertise in skin microbial interactions and ...
Breaking Biology News(10 mins):
(Date:2/12/2019)... ... February 12, 2019 , ... ... has finalized a deal to extend their use of Medrio, the leading provider ... 2023. The CRO has been a regular Medrio customer for over nine years, ...
(Date:2/2/2019)... ... , ... Signature Matrix and Signature Cord are the culmination ... cell research expert and Amazon best-selling author, Neil Riordan, PA, PhD, and his ... allograft that originates from the same tissue used to manufacture the purified, expanded ...
(Date:1/30/2019)... ... January 29, 2019 , ... ... Lifecycle since 2016. In his position as Director of Sales and Marketing, Mr. ... services supplier across multiple industries the company supports. During this time, Mr. Schieving ...
(Date:1/30/2019)... ... January 30, 2019 , ... The Society for Laboratory ... to discuss best practices for laboratory automation and screening. This year the conference ... year’s conference, Visikol will be at booth #345 and throughout the conference will ...
Breaking Biology Technology:
Cached News: