Exagrams to Kilograms
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1 exagram (Eg) = 1E+15 kilogram (kg). Exagram (Eg) is a unit of Weight used in Metric system. Kilogram (kg) is a unit of Weight used in Metric system.

An Introduction to Exagrams

Exagrams are a unit of mass in the metric system that are equal to one quintillion grams. They are also known as teratons or teratonnes, and are rarely used for measuring quantities of materials or substances, except in theoretical or hypothetical scenarios. In this article, we will explore the definition, history, conversion and usage of exagrams.

Definition of Exagrams

An exagram is a unit of mass equal to 10^18 (one quintillion) grams. The symbol for exagram is Eg, and it is derived from the SI prefix “exa”, meaning “quintillion”. An exagram is also equivalent to 1000000000000000 kilograms, 2204622622001001.001 pounds.

History of Exagrams

Exagrams were introduced as a multiplier in the metric system in 1795, along with other prefixes such as kilo, deca, deci and centi. The metric system was developed in France during the French Revolution, as a way to standardize and simplify measurements. The metric system was based on decimal fractions and powers of ten, unlike the previous systems that used arbitrary units and fractions.

The metric system was adopted by many countries in the 19th and 20th centuries, and became the official system of measurement for science and international trade. However, some countries such as the United States still use other systems such as the imperial or customary units.

Exagrams are also known as teratons or teratonnes, which are derived from the word “tera”, meaning “trillion”. The teraton was originally defined as the energy released by one trillion tons of TNT exploding, but was later redefined as 1000 petagrams or 4.184 yottajoules. The teraton is not an SI unit, but it is accepted for use with SI units.

How to Convert Exagrams

Exagrams can be easily converted to other units of mass by multiplying or dividing by powers of ten. For example, to convert exagrams to grams, we multiply by 10¹⁸; to convert exagrams to kilograms, we multiply by 10¹⁵; to convert exagrams to milligrams, we multiply by 10²¹.

Where Exagrams are Used

Exagrams are rarely used for measuring quantities of materials or substances, except in theoretical or hypothetical scenarios. Here are some examples:

• In cosmology, exagrams are used for estimating the mass of dark matter or dark energy in the universe. For example, the mass of dark matter in the observable universe is about 2.5 x 1024 Eg.
• In geophysics, exagrams are used for calculating the mass of tectonic plates or continental crusts on Earth. For example, the mass of the Pacific Plate is about 6.8 x 1019 Eg.
• In chemistry, exagrams are used for expressing the mass of very large molecules or macromolecules. For example, the mass of a single strand of DNA in a human cell is about 3 x 10-12 Eg.
• In mathematics, exagrams are used for illustrating very large numbers or orders of magnitude. For example, the number googolplex is equal to 10(10100) grams or 10(1098) Eg.

Example Conversions of Exagrams to Other Units

Here are some example conversions of exagrams to other units:

• To convert 5 Eg to kg, we multiply by 1000000000000000: 5 Eg x 1000000000000000 = 5000000000000000 kg
• To convert 6 Eg to lb, we multiply by 2204622622001001.001: 6 Eg x 2204622622001001.001 = 13227735732006006.006 lb

Kilograms: A Unit of Weight

History of the Kilogram.

The kilogram was originally defined in 1795 during the French Revolution as the mass of one litre of water at 4 °C, which was determined to be 18841 grains. In 1799, the Kilogramme des Archives, a platinum artifact, replaced it as the standard of weight. In 1889, the IPK became the new standard of the unit of weight for the metric system and remained so for 130 years, until the current definition was adopted in 2019.

The kilogram, as well as other metric units of weight, such as the gram and the tonne, were introduced in the 19th century as part of the decimal system of measurement that aimed to simplify and unify the units used in science and commerce. The kilogram was officially adopted by the International System of Units (SI) in 1960 as one of the seven base units.

How to Convert Kilograms

To convert kilograms to other units of weight, we need to use conversion factors that relate the kilogram to the desired unit. For example, to convert kilograms to pounds, we need to know that one pound is equal to 0.45359237 kg. Therefore, one kilogram is equal to 2.2046226218 pounds.

Here are some common conversion factors for kilograms:

• 1 kg = 1000 g
• 1 kg = 2.2046226218 lb
• 1 kg = 35.27396195 oz
• 1 kg = 0.001 t
• 1 kg = 0.1574730444 st

To convert from other units of weight to kilograms, we need to use the inverse of these conversion factors. For example, to convert pounds to kilograms, we need to divide by 2.2046226218.