Latest Radiation Stories
Elekta receives FDA 510(k) clearance for Response automatic gating for prostate cancer cases ATLANTA, Nov.
Proton beam radiation does not cause the serious side effects associated with conventional radiation for children with brain and spinal cancers. HOUSTON, Oct.
Mobile Stroke Ambulance for Faster, Effective Treatment Ranks No. 1 on Annual List CLEVELAND, Oct.
MANHATTAN BEACH, Calif., Oct.
ORANGE CITY, Iowa and CORALVILLE, Iowa, Oct.
NASHVILLE, Tenn., Oct.
AllMed webinar provides health plans with the latest information on when IMRT is medically necessary in cancer radiation therapy. Portland, Oregon (PRWEB) October
An international team of physicists has measured a subtle characteristic in the polarization of the cosmic microwave background radiation that will allow them to map the large-scale structure of the universe, determine the masses of neutrinos and perhaps uncover some of the mysteries of dark matter and dark energy.
For NASA, manned missions to Mars and other deep-space destinations remain an essential goal. However, a new study reveals that researchers are only beginning to understand and characterize the radiation hazards such missions would encounter.
The above image looks at the month of March for the three cycles known as Normal Phase, El-Nino, and La-Nina. The data was recorded for the city of Honolulu Hawaii, during the month of March. Remember this is just data for one month during these cycles. Normal: During this cycle incoming solar activity was upwards to 48% efficient for the month, producing less than 50% of the month which is due to the large amount of daily cloud cover that is seen on the island during the early morning and...
The above image looks at the month of March for the three cycles known as Normal Phase, El-Nino, and La-Nina. The data was recorded for the city of Austin Texas. Remember this is just data for one month during these cycles. Normal: During this cycle incoming solar activity was upwards to 60% efficient for the month, producing enough solar energy that only 40% of the month would have not had strong incoming radiation. EL-Nino: This phase provided the area with an extended number of...
Sunglasses are protective eyewear designed to shield the eyes from damaging or discomforting sunlight and high-energy light. They can also work as a visual aid. The ultraviolet radiation from the sun can cause several serious eye problems and many healthcare professionals recommend eye protection. However, since the 1940s sunglasses have been associated with celebrities more so than eye protection. James Ayscough experimented with tinted lenses in the mid-18th century although they were...
The bolometer, invented in 1878 by Samuel Pierpont Langley, measures the energy of incident electromagnetic radiation. It consists of an absorptive element connected to a heat sink through a thermal link. The absortive element raises its temperature above that of the heat sink when radiation impinges on it. The higher the energy the higher the temperature rises. Old bolometers used metals while newer ones used semiconductors and superconductors as the absorptive elements. Bolometers can...
A telescope, designed to aid the observation of remote objects, collects some form of electromagnetic radiation (such as visible light). The Netherlands developed the first known practical telescope in the 17th century. The term "telescope" was termed in order to describe Galileo's instruments in 1611. However, Galileo was not the inventor of the telescope. It was Hans Lippershey, Zacharias Janssen, and Jacob Metius who are credited with the creation of the telescope. In 1668, Isaac Newton...
- Withering but not falling off, as a blossom that persists on a twig after flowering.