Convert pound (troy or apothecary) to attogram
Please provide values below to convert pound (troy or apothecary) [lb t] to attogram [ag], or Convert attogram to pound (troy or apothecary).
How to Convert Pound (Troy Or Apothecary) to Attogram
1 lb t = 3.732417216e+20 ag
Example: convert 15 lb t to ag:
15 lb t = 15 × 3.732417216e+20 ag = 5.598625824e+21 ag
Pound (Troy Or Apothecary) to Attogram Conversion Table
| pound (troy or apothecary) | attogram |
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Pound (Troy Or Apothecary)
A pound (troy or apothecary) is a unit of weight used primarily for precious metals and gemstones, equivalent to 12 ounces or approximately 373 grams.
History/Origin
The troy pound originated in the medieval French town of Troyes, historically used in the trade of precious metals and gemstones. The apothecary pound was used in pharmacy for weighing medicines and ingredients. Both units have roots in medieval European systems of measurement.
Current Use
The troy pound is still used in the precious metals industry, especially for gold, silver, and gemstones. The apothecary pound is largely obsolete but may still be referenced in historical contexts or traditional practices.
Attogram
An attogram (ag) is a unit of mass equal to 10^-18 grams, used to measure extremely small quantities.
History/Origin
The attogram was introduced as part of the metric system's expansion to include smaller units for scientific measurements, particularly in fields like nanotechnology and molecular biology, during the 20th century.
Current Use
Attograms are primarily used in scientific research to quantify very small masses, such as individual molecules or nanoparticles, and are part of the SI units for precise measurements in advanced scientific applications.