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TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules ( 1 gigacalorie ), [ 1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.
12 Thaler standard (19.5 grams of silver per Thaler) 13 1 ⁄ 2 Thaler standard (17.5 grams) 14 Thaler standard (16.7 grams) 18 1 ⁄ 2 Thaler standard (12.6 grams) 24, later 24 1 ⁄ 2 Gulden standard (9.5 grams of silver per Gulden) 34 Mark standard (6.9 grams of silver per Mark). The weight shown was the fine silver content in each case.
Troy ounce is a traditional unit of gold weight. One-troy-ounce (480 gr; 31 g) samples of germanium, iron, aluminium, rhenium and osmium. A Good Delivery silver bar weighing 1,000 troy ounces (83 troy pounds; 31 kg) Troy weight is a system of units of mass that originated in 15th-century Kingdom of England [ 1] and is primarily used in the ...
A pennyweight ( dwt) is a unit of mass equal to 24 grains, 20 of a troy ounce, 240 of a troy pound, approximately 0.054857 avoirdupois ounce [ 1] and exactly 1.55517384 grams. [ 2] It is abbreviated dwt, d standing for denarius – (an ancient Roman coin), and later used as the symbol of an old British penny (see £sd ).
C-19 [9] One gram is thus approximately equivalent to 15.432 36 grains. [6]: C-13 The unit formerly used by jewellers to measure pearls, diamonds, and other precious stones, called the jeweller's grain or pearl grain, is equal to 1 ⁄ 4 carat (50 mg; 0.77 gr). [5] The grain was also the name of a traditional French unit equal to 53.115 mg. [5]
Design date. 2015. The British two pound coin ( £2) is a denomination of sterling coinage. Its obverse has featured the profile of Queen Elizabeth II since the coin’s introduction. Three different portraits of the Queen have been used, with the current design by Jody Clark being introduced in 2015. The reverse design features Britannia .
Dram (unit) The dram (alternative British spelling drachm; apothecary symbol ʒ or ℨ; [ a] abbreviated dr) [ 4][ 5]: C-6–C-7 [ 6] is a unit of mass in the avoirdupois system, and both a unit of mass and a unit of volume in the apothecaries' system. [ 5] It was originally both a coin and a weight in ancient Greece. [ 7]
The stone or stone weight (abbreviation: st.) [ 1] is an English and British imperial unit of mass equal to 14 avoirdupois pounds (6.35 kg). [ nb 1] The stone continues in customary use in the United Kingdom and Ireland for body weight . England and other Germanic -speaking countries of Northern Europe formerly used various standardised "stones ...