The "x" in x-ray was used because the scientist who discovered x-rays, Wilhelm Conrad Rontgen, didn't know the nature of the rays; like in a mathematical equation, they represented an unknown. The x-ray was discovered in 1895.Know More
Physicist Wilhelm Conrad Rontgen made the discovery of the x-ray completely by accident. His original experiment was to test whether cathode rays could pass through glass. He noticed a glow coming from a screen that had been treated with a variety of chemicals but had no idea how the glow appeared.
What Rontgen didn't know was that x-rays are electromagnetic and act a lot like light rays. After his accidental discovery, Rontgen spent time in his lab conducting numerous experiments, trying to find out the nature of these mysterious rays. It wasn't long before he figured out that x-rays could see through human flesh, and x-rays quickly began being used to find bullets and broken bones during the Balkan War. In 1901, Rontgen received the Nobel Prize in physics for his discovery. It wasn't until much later that scientists realized the harmful effects of the radiation used to create x-rays.
Today, x-rays are used in completely safe ways and have proven to be useful in the medical field and in other areas such as airport security and material analysis.Learn More
"Error 9" in an ACCU-CHEK Aviva glucometer indicates that the batteries are almost dead, according to ACCU-CHEK. The owner's manual for the device contains directions for replacing batteries, and the company website has a video showing the process. The battery should last for 2,000 tests, Liberty Medical states.Full Answer >
"RICE" is an acronym that, in the context of first aid, refers to rest, ice, compression and elevation, according to WebMD. These four steps assist in healing injuries, such as ankle or knee sprains, and reducing the level of pain and swelling an injured person experiences.Full Answer >
A microalbumin urine test detects the presence of a protein called albumin in the urine and is useful for the early detection of kidney damage, as explained by Mayo Clinic. Healthy kidneys retain albumin, and diseases that damage the kidneys can cause albumin to leak out into the urine.Full Answer >
Bibasilar rales, or bibasilar crackles, in the lungs are caused by asthma, atelactasis, bronchiectasis, chronic bronchitis, congestive heart failure, lung abscess, pneumonia, pulmonary edema and severe sepsis, as stated by Right Diagnosis. Bibasilar rales are an indication that a patient is suffering from having lungs that are inflamed, infected or filled with fluid, and the most common symptom is the presence of abnormal breath sounds that can be heard from the base of the lungs.Full Answer >