Jolly balance is spelled with the letters "j-o-l-l-y" and "b-a-l-a-n-c-e." This term refers to a type of weighing scale that has two pans, one on each side of a central pivot point. The word "jolly" is pronounced /ˈdʒɒli/ in IPA phonetic transcription, with the first sound being a 'dzh' like in 'jungle' and the second sound being a long 'o.' Meanwhile, "balance" is pronounced /ˈbæləns/ in IPA phonetics, with the stress on the first syllable and an 'a' sound like in 'apple.'
A jolly balance is a type of weighing scale that is commonly used in laboratories and various industries to measure the weight or mass of an object with great precision. It consists of a central pivoting beam or lever that is supported at its center and has two equal-length arms attached to it. On one side, there is a small pan or dish where the object to be weighed is placed, while on the other side, there are several counterweights that can be adjusted.
The jolly balance operates on the principle of moment or torque balance, which means that when the object is placed on the pan, the counterweights are adjusted until the beam remains horizontal or balanced. The value of the object's weight or mass can then be determined by reading the markings on the counterweight.
One of the distinguishing features of a jolly balance is its high level of accuracy and sensitivity, allowing it to measure weights or masses with great precision. It is often preferred in scientific research, quality control, and experimental settings where precise measurements are crucial. In addition, jolly balances are often equipped with a leveling screw, which ensures that the scale is perfectly horizontal, further enhancing the accuracy of the readings.
Overall, a jolly balance is a specialized weighing instrument that provides accurate and precise measurements of weight or mass, making it an invaluable tool in scientific and industrial applications.
The term "Jolly balance" is derived from the combination of the words "jolly" and "balance".
The word "jolly" traces back to the Old Norse word "jol", which referred to a winter feast or celebration. Over time, the term evolved to convey merriment, cheerfulness, or joy. In English, "jolly" began to be used in the 16th century to describe someone or something that is full of good humor, lively, or jocund.
Meanwhile, the word "balance" stems from the Latin word "bilanx", which is composed of "bi-" meaning "two" and "lanx" meaning "dish" or "scale". Thus, the original meaning denoted a device that holds two dishes or pans in equilibrium for measuring weights.