An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures.The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a moveable bed that is inserted into the magnet.n MRI scan can be used as an extremely accurate method of disease detection throughout the body and is most often used after the other testing fails to provide sufficient information to confirm a patient's diagnosis. In the head, trauma to the brain can be seen as bleeding or swelling.
Another type of smoke detector was invented by NASA for use in space. The first edition of this device was introduced to the Skylab in 1973. This was necessary to to the requirement of adjustable sensitivity for the space station.
An engineering group would be responsible for the product. The US Jet Propulsion Laboratory in conjunction with the US army and navy was launched in 1958. This was the first observation/monitoring satellite successfully launched. Remote sensing is done using a photographic camera. This was performed in the 1860s using hot air balloons.