NARRATOR: The metric system is a way of measuring things ... Metric measurements are also used for weight. When we talk about grams and kilograms, and millilitres and litres are used for volume.

No such simple relations existed in standard units of weight and measure among units of length (inches, feet, yards, miles) or among units of length, volume and weight. In other words, the French ...

A ‘Tola’ is an old weight gauging unit introduced in India in 1833. Its objective was to allow the fair swap of grain and prized metals. As per the modern metric system, 1 tola in grams would ...