Lists of units of measurement are systematic collections of units used to quantify physical quantities across various fields such as science, engineering, commerce, and everyday life. These units often fall into categories based on the type of measurement they represent. Below are some commonly recognized categories and examples of units within each: ### 1.
Humorous units of measurement are often playful and whimsical, used to add a bit of levity to discussions about measurement or to express quantities in ways that evoke laughter or creativity. Here are some examples of such units: 1. **Smidgen** - A small amount, often humorously used in cooking. 2. **Jiffy** - An indeterminate short amount of time; often used humorously to imply quickness.
The list of international units generally refers to the International System of Units (SI) and other units that are widely recognized and used internationally in scientific, commercial, and technical contexts. Here are some key categories and examples of these units: ### Base Units (SI Units) These are the fundamental units upon which other units are built. 1. **Meter (m)** - Length 2. **Kilogram (kg)** - Mass 3. **Second (s)** - Time 4.
Nautical units of measurement are specialized units used in maritime navigation and related fields. Here is a list of some of the most common nautical units of measurement: 1. **Nautical Mile**: The primary unit of distance in maritime and air navigation, equivalent to one minute of arc along a meridian. It is approximately equal to 1.15078 miles or 1.852 kilometers. 2. **Knot**: A unit of speed equal to one nautical mile per hour.
The list of obsolete units of measurement includes various units that were once commonly used but are no longer in use today, largely due to the adoption of the metric system or other standardized measurement systems. Here are some examples of obsolete units across different categories: ### Length - **Chain**: Used in surveying and equal to 66 feet or 22 yards. - **Furlong**: Equal to 660 feet, primarily used in horse racing.
A variety of scientific units are named after people to honor their contributions to science and technology. Here is a list of notable scientific units named after individuals: 1. **Ampere (A)** - The unit of electric current, named after André-Marie Ampère. 2. **Becquerel (Bq)** - The unit of radioactivity, named after Henri Becquerel.
In the International System of Units (SI), electromagnetism is quantified using a specific set of base and derived units.
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