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:3/11/2020)... (PRWEB) , ... March 11, 2020 , ... ... for wireless sensing, today announced smart human body temperature infrared touch-free monitoring product ... self-calibrated thermal meter WxS x800-IRTM, supporting flexible wireless uplink for cloud connectivity such ...
(Date:3/5/2020)... ... 05, 2020 , ... Patients in need of new teeth after tooth extraction ... of Dental Implants of Ocala. Same-day dental implants allow patients with an ... just one day. This treatment utilizes advanced technology and Dr. Brand’s unique experience and ...
(Date:3/4/2020)... ... March 04, 2020 , ... VGXI, Inc., a uniquely specialized ... nominated as a finalist in the category of Best Contract Manufacturing Organization for ... manufacturing of a DNA vaccine against the novel coronavirus, COVID-19, under a CEPI ...
Breaking Biology News(10 mins):
(Date:4/1/2020)... Conn. (PRWEB) , ... March 31, 2020 , ... ... Science, Inc. (P2) announce the signing of a Joint Development Agreement that ... , Bedoukian Research, Inc. is a global leader in the supply of high-quality ...
(Date:3/13/2020)... ... March 12, 2020 , ... Today, ... Ireland SFI Research Center (APC), a pioneer in the field of microbiome science, ... a significant role in human health, based at University College Cork and Teagasc ...
(Date:3/4/2020)... ... March 04, 2020 , ... ... services, today announced the launch of its FleXpress™ high-throughput recombinant antibody production ... of antibodies at 80 ml scale. All production occurs in Absolute Antibody’s ...
(Date:2/28/2020)... ... February 26, 2020 , ... Designed primarily for ... with a dedicated controller, thus simplifying setup, streamlining integration, and optimizing workflow. Capable ... first of Fastec Imaging’s new HS Series cameras to be released. The HS ...
Breaking Biology Technology:
Cached News: