SBT Instruments 4pcs Ring & Ball Apparatus, Ball 25mm (With Handle), Physics Laboratory Instrument/Scientific Equipment

SBT Instruments 4pcs Ring & Ball Apparatus for Physics Laboratory Instrument/Scientific Equipment
Ball 25mm (With Handle)

The SBT Instruments Ring & Ball Apparatus is an important tool for demonstrating the principles of thermal expansion in physics education. This apparatus contains a 25mm brass ball attached to a sturdy handle and a corresponding brass ring, both accurately engineered to illustrate how materials expand when heated and contract upon cooling. At room temperature, the ball passes seamlessly through the ring, however, once heated, the ball expands and no longer fits, giving a clear, hands-on demonstration of thermal expansion. This set are ideal for classroom demonstrations, allowing students to observe and understand the fundamental concepts of thermodynamics and material science. Made with high-quality materials, the apparatus enables durability and reliable performance for repeated educational use.