How are electromagnetic waves used in the medical field? Three main EMF applications in medicine are magnetic resonance imaging (MRI), radiofrequency ablation (RFA) used in cardiology and tumour therapy, and localized dielectric heating (short wave diathermy) used in physiotherapy. We found no studies of occupational health risks for workers administering RF ablation. Which of the […]
Can you get gold out of black sand?
Can you get gold out of black sand? When gold found in black sand comes in the form of small nuggets and flakes that aren’t attached to any minerals, they can be sifted and separated through the use of machinery like a shaker table, a process similar to the panning used by gold prospectors. This […]
What are the 2 types of CPT codes?
What are the 2 types of CPT codes? Level I codes are based on CPT codes and used for services and procedures usually provided by physicians. Level II codes cover health care services and procedures that aren’t provided by physicians. What are CPT codes used to describe? CPT codes are used to describe tests, surgeries, […]
Can we change the path of light explain?
Can we change the path of light explain? Answer: The path of light can be changed by reflection and refraction. Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the lightwill reflect at the same angle as it hit the surface. What happens […]
When a car takes a sharp left turn the passengers in it tend to lean towards right this is due to?
How is hyperopia corrected?
How is hyperopia corrected? Hyperopia can easily be corrected by wearing glasses with converging lenses or contact lenses. Even if the degree of hyperopia is small, correction is still advisable to prevent secondary problems such as headaches or eye irritation. Can hyperopia be cured? Long sight can be corrected by glasses or contact lenses, or […]
What is two or more substances not chemically combined?
What is two or more substances not chemically combined? A mixture is a physical combination of two or more substances where there is no chemical combination or reaction. Mixtures combine physically in no specific proportions. They just mix. Solids, liquids and gases can be combined to create a mixture. Which of the following is the […]
Why do iron filings catch fire?
Why do iron filings catch fire? 1 Answer. Iron has a strong molecular force of attraction. Hence when heated it doesn’t reach its ignition temperature and doesn’t burn. But iron fillings when sprinkled in flames attain the ignition temperature ( as iron filings are comparatively smaller particles) and gain a larger surface area for the […]
What were some of the earliest forms of life?
What were some of the earliest forms of life? The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things. What factors are the most critical in […]
Does a night light use a lot of electricity?
Does a night light use a lot of electricity? Night lights come in a variety of types including incandescent, neon, electroluminescent and LED (light-emitting diode). This is how much electricity the night light will use when it is on. Typical incandescent or neon night lights use about 1.5 to 7.5 watts of energy. Can LED […]