Radio volume potentiometer
* A potentiometer is an instrument
* Potentiometer radio volume control.
* Potentiometers are resistors where the resistance can be changed using a knob or a slider
  - can be carbon film, conductive plastic, cermet, or wire wound
  - generally have composition elements. *' are variable resistors. Potentiometers are resistors where the resistance can be changed using a knob or a slider. Potentiometers are used to control many things, including how bright or dim the lights in your house are and the volume controls on your television

Radioactive compound
* Most radioactive compounds have a limited shelf life due to radiolytic decomposition.
* are expensive, difficult to use and create toxic wastes.
* decay, and lose radioactivity.
* work by emitting an ionising radiation.

### radioactive element:

Lawrencium
* are chemical elements
  - radioactive substances.
  * It is also named 'eka-lutetium' by some people. It has the symbol 'Lr'. It has the atomic number 103. It radioactive element that does not exist in nature. It has to be made. Lawrencium is made from californium
* has no biological role
  - naturally occurring isotopes
* is an element
  - created by nuclear bombardment, and has only been produced in miniscule amounts
  - radioactive and therefore considered toxic
* trivalent ion in aqueous solution.

Uranium isotope
* All uranium isotopes are radioactive.
* have differenta.

### radiology:

Fluoroscopy
* allows identification of any disease in the coronary arteries.
* also is used to assist in guiding catheter placement.
* can help patients regain lost functions
  - improve the safety of other procedures
  - show obstructive emphysema, decreased diaphragmatic movements and mediastinal shift
* has two magnification modes and image capture.
* involves using x-rays to examine tissues and guide the biopsy
  - deep within the body and guide the biopsy
* is also useful in studying the esophagus
  - done in an office or the radiology section of a hospital
  - invaluable to identify interspace location and helps confirm depth
  - mandatory during injection to prevent over distention of the duct systems
  - necessary to confirm visceral position in women with pelvic organ prolapse
* is used to guide the needle and prevent complications from the needle
  - visualize boundaries of the stomach
* makes a moving X-ray picture of internal organs.
* produces a moving x-ray image of internal organs.
* provides guidance for the catheter to pass through the artery to the heart.
* shows whether it moves properly.
* uses continuous x-rays to create a moving image
  - either continuous or pulsed X-ray beam
  - x-rays to show movement
* video x-ray that images the esophagus, stomach, and intestines at work.

Raft
* Some rafts have baffle cones within the tube that expands if there loss of air
  - rest on surfaces
* also have the advantage of being able to be transported deflated.
* are a configuration of tube chambers and a floor
  - floats
  - great for lying around on the nude beach or nude pool
* become water-logged when left in the water and sink in a horrible manner when many get on.
* consist of two or more resting otters.
* includes sections.
* move left and right across the water.
* tend to fold around rocks, dumping the occupants into the river.
* typically consist of two or more resting otters.

### railroading:

Magnetic levitation
* counteracts the gravitational force and decreases the weight of the sample.
* occurs when the vehicle reaches transition speed.