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I assume you are referring to a CBR (captive bead ring). Here's BMEzine's wikipedia definition of it
http://wiki.bmezine.com/index.php/CBR
The ball has two dents in it that the edge of the metal fits into. There's nothing you screw on; it just snaps in place. If it's too loose, the ball can fall out. I might have swallowed a lip ring ball once because of that.
What else can I help you with?
What apparatus is commonly used in lab to show expansion of solid on heating?
A common apparatus used in labs to show the expansion of solids on heating is a simple demonstration setup consisting of a metal ball and ring. The ball passes easily through the ring at room temperature, but when heated, it expands and no longer fits through the ring, illustrating the concept of thermal expansion.
What laboratory apparatus used to support the set up for distillation?
A laboratory apparatus commonly used to support distillation setups is a ring stand. The ring stand consists of a vertical rod attached to a heavy base with a clamp or clamp holder at the top. The clamp can hold various pieces of glassware in place during the distillation process.
Double ring bases?
Double ring bases are typically used in chemistry to stabilize and support apparatus like flasks or condensers. They consist of two concentric metal rings, with the outer ring serving as a stand and the inner ring used to hold the equipment. This setup provides added stability and support for the apparatus during experiments.
Why should a apparatus be clamped to a metal ring?
Clamping an apparatus to a metal ring provides stability and prevents accidental tipping or shifting during an experiment. This ensures the safety of both the apparatus and the person working with it.
What are the light apparatus for gymnastic?
There are two different types of apparatus used in gymnastics. The first apparatus'es used are the heavy apparatus; these include rings, bars, and horse. The light apparatus'es used include the wands and dumb bells.
What do ring stands do?
The ring stand holds an iron ring, or other support apparatus, depending on what the experiment calls for.
What is the ball apparatus under hood of truck?
Not knowing anything about your truck, a wild guess would be that the "ball apparatus" is a vacuum reservoir and your truck is a diesel.
Iron ring function?
An iron ring function is typically a mathematical function used to represent the response of a particular system or process. It is named after the shape of the graph produced by the function, which resembles an iron ring. Iron ring functions are often used in signal processing and control theory to model dynamic systems.
What laboratory apparatus used for supporting the test tube when not in used?
apparatus
Why should apparatus always be clamped securely to a metal ring stand?
Apparatus should be clamped securely to a metal ring stand to prevent accidental spills, breakage, or tipping of the equipment. This helps ensure the safety of the experiment and those conducting it by providing a stable and secure platform for the apparatus.
What is a iron ring used for in chemistry?
An iron ring is used in chemistry labs to support an apparatus such as a beaker or flask during a heating process. The ring is clamped to a ring stand and provides a stable platform for the glassware to sit on while being heated over a Bunsen burner or other heat source.
What happens when you try to pass a hot ball though a ring?
The hot ball will heat up the ring as it passes through, potentially causing thermal expansion of the ring's material. If the ball is significantly hotter than the ring, it may also cause the ring to deform or melt depending on the materials involved.
