The amount of energy in a light wave is proportionally related to its frequency: High frequency light has high energy; low frequency light has low energy. So, gamma rays have the most energy (part of what makes them so dangerous to humans), and radio waves have the least. Of visible lig...
Application of carbon-ion beams or gamma-rays on primary tumors does not change the expression profiles of metastatic tumors in an in vivo murine model. Int J Radiat Oncol Biol Phys 2009; 74:210-8.Tamaki, T.; Iwakawa, M.; Ohno, T.; Imadome, K.; Nakawatari, M.; Sakai, M.; ...
Radiographic Testing utilizes x-rays or gamma rays to produce an image of a pressure vessel‘s surface and subsurface. The reflected rays will be distorted once it passes any discontinuities, holes, and difference in density and will be exposed in the film. Radiographic testing is highly reproduc...
Summarize how ultraviolet (UV) light works to control microbial growth and explain how X-rays and gamma rays are used as physical control agents. Why are our summers hot and dry, but winters wet and cool? Why is radiation therapy used and how does it affect cancer cells? ...
Mobula raysare adept swimmers that are equally as comfortable gliding through the air, hence their nickname: flying rays. This photo, taken in Baja, Mexico, shows a mobula ray in flight. The rays, known to local fishermen as flying tortillas, measure just over three feet in width and jump...
The impact of spaceflight on the immune system has been investigated extensively during spaceflight missions and in model experiments conducted on Earth. Data suggest that the spaceflight environment may affect the development of acquired immunity, and i
Higher frequency means that signals can carry more data. However, all forms of wireless communication represent a tradeoff between power consumption, range, and bandwidth. So in exchange for high data rates, WiFI consumes a lot of power and doesn’t have a lot of range. “Huh”, you think...
For instance, we have measured the speed of "light" (gamma rays) emitted from the decay of fast (.99975) pi mesons with a resolution of 400ppm, and found no change. That's just one of a huge number of experiments. Modern high particle accelerators wouldn't w...
Ionizing gamma rays and x-rays can cause cancer when their energy is absorbed by the tissue and chemical bonds are broken, damaging DNA. RF energy, on the other hand, produces heating of tissue. Although there is a small amount of experimental evidence that suggests RF energy can impact DNA...
The best known in probably the visible light spectrum. Figure 2 shows a portion of the electromagnetic spectrum ranging from low energy radio waves to high energy gamma rays. Figure 2. Diagram of the electromagnetic spectrum. As mentioned before, electromagnetic radiation is always present, ...