molecular beam

A molecular beam is a stream of molecules directed in a specific way, often used in scientific experiments to study their properties. Scientists create this beam by heating a gas to allow its molecules to escape through a narrow opening. This results in a focused flow of molecules, similar to a beam of light. Researchers can then analyze how these molecules interact with surfaces or other beams, helping to uncover details about chemical reactions, molecular structures, and material properties. This technique is crucial in fields like chemistry, physics, and materials science for exploring the fundamental behaviors of matter.