* Protection from dust and air currents: The glass case acts as a barrier against dust particles and air currents that could affect the delicate weighing mechanism. Dust can accumulate on the balance pans, leading to inaccurate measurements. Air currents can also cause fluctuations in the balance, making it difficult to obtain precise readings.
* Prevention of temperature fluctuations: The glass case helps to minimize the impact of temperature changes on the balance. Temperature variations can cause the balance arms to expand or contract, leading to inaccuracies in the measurements.
* Protection from external vibrations: The glass case also protects the balance from external vibrations, which can also disrupt the weighing process and lead to inaccurate readings.
* Visibility and accessibility: While protecting the balance, the glass case allows clear visibility of the weighing process. This allows the user to easily observe the balance pans and the pointer, making it easier to obtain accurate readings.
In summary, the glass case provides a controlled environment that protects the delicate mechanism of the physical balance from external factors that could affect its accuracy and performance.
