Milligram: (symbol: mg) is a unit of mass in the metric system. It represents one-thousandth of a gram and is widely used in fields such as medicine, chemistry, and nutrition, where precise measurements of small masses are required.
Interesting Facts:
Interesting Facts:
Interesting Facts:
- A milligram is about the weight of a small grain of sand
- A typical cup of coffee contains 80–120 mg of caffeine
Interesting Facts:
- The kilogram was originally defined as the mass of one liter (1,000 cm³) of water at its maximum density (~4°C).
- For much of the 19th and 20th centuries, it was based on the mass of the International Prototype Kilogram (IPK), a platinum-iridium alloy cylinder stored in France.
- Since 2019, the kilogram has been defined in terms of the Planck constant (h), a fundamental constant of nature. This modern definition ties the kilogram to a universal physical property rather than a physical object.
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