We also notice it when it does something that has a side effect we can see or feel. Here are several examples: When you get a cut, all sorts of bacteria and viruses enter your body through the break in the skin. When you get a splinter you also have the sliver of wood as a ...
How does AIDS affect the body? The human immunodeficiency virus (HIV) that causes AIDS attacks the body's immune system, making the person infected susceptible to other infections and illnesses, which can lead to death. Lots More Information Author's Note: How AIDS Works When I was in high...
AimsThe effects of irradiation (gamma-rays and electron-beams), up to 10 kGy, in the antimicrobial activity of mushroom species (Boletus edulis, Hydnum repandum, Macrolepiota procera and Russula delica) differently processed (fresh, dried, freeze) were evaluated.Alves, M. J.Fernandes, A.Bar...
How does our vision work? The eye can be compared to a camera Rods and cones - retina visual cells Emmetropia - You have no refractive errors Different visual errors How does our vision work? All visual impressions arise when light rays from the surroundings enter the eye through the pupil...
Gamma rays and cosmic rays are high-energy particles and radiation that originate from various sources in the universe, such as supernovae, black holes and even the Big Bang itself. Scientiststheorizethat antimatter should be as abundant as ordinary matter because of the Big Bang, but it's sc...
The radioactive material accumulates in the brain and gives off gamma rays, which are captured with a special type of camera [source: Radiologyinfo.org]. PET scans are useful for identifying brain abnormalities and studying which parts of the brain are most active during certain tasks [source:...
2Researchers have done lots of work to prove that helping others does have a great effect on a person’s happiness. Even though we usually feel the urge to compete with other people, taking time to assist others can be very beneficial to us. The key to internal joy and happiness is simp...
2. What does Anthony Seldon think of robots in 2027? A.Robots can do most teaching. B.Robots will work as assistants C.Robots can only transfer information. D.Robots will have empathy like humans. 3. Why are robot teachers necessary? A.Because robot teachers cost less. B.Because robot ...
The bluish-tinged vertical rays in the aurora appear when electrons impact singly ionized nitrogen molecules. The brighter lower borders of some aurora appear when electrons affect nitrogen and oxygen molecules and may briefly appear magenta. Faint broadband of blue that runs from magnetic east to ...
Daily use helps protect it from damaging UV rays and minimizes further dehydration or dryness due to the sun’s harsh effects. Mineral formulas are a good choice for normal to dry skin, as they are generally suitable for a wide range of skin types. Choose a mineral formula with moisturizing...