Balance mechanical ohaus tripple beam

The best definition of a bell jar apparatus is a scientific instrument used in laboratories to create a controlled environment for various experimental purposes, such as studying the behavior of gases, conducting vacuum experiments, or demonstrating principles of physics and chemistry. It consists of a glass or transparent plastic container shaped like a bell, which can be sealed to create a vacuum chamber. The apparatus allows researchers to manipulate and observe the interactions of substances or objects within the vacuum or controlled atmosphere, often enabling investigations that wouldn’t be possible under standard atmospheric conditions.

The Bernoulli tube apparatus, also known as a Venturi tube apparatus, is a scientific device used to demonstrate the principles of fluid dynamics, particularly the Bernoulli’s principle. It consists of a specially shaped tube with a constricted region, often referred to as a Venturi section. When fluid (liquid or gas) flows through the tube, the constricted section leads to changes in pressure and velocity according to Bernoulli’s principle, which states that as the velocity of a fluid increases, its pressure decreases and vice versa. This apparatus is commonly used in educational settings to visually illustrate how the flow of a fluid can affect its pressure, helping to explain various phenomena like lift in aircraft wings, fluid flow through pipes, and more.