User:Tempac3/sandbox

Inventions which originated on the territory of the Russian Plain, Northern Russia, North Caucasus and Siberia from Mesolithic to the Bronze Age. This section also includes earliest known instances of things that rarely survive archaeological record.

• Wheel ^{(middle of the 4th millennium BC)}

The question of which culture originally invented the wheeled vehicle remains unresolved and under debate. Some archaeologists attribute it to the Maykop culture of North Caucasus.^[1]

• Chariot ^{(approximately 2000 BC)}

The earliest fully developed true chariots known are from the chariot burials of the Andronovo sites of the Sintashta-Petrovka culture in modern Russia and Kazakhstan.^[2]

• Distaff ^{(beginning of the 2nd millennium BC)}

Parts of a distaff and ceramics with linum textile prints have been discovered during an excavation of a settlement on Modlona river in Vologda region.^[3]

• Trousers ^{(Upper Paleolithic)}

There is some evidence of trousers being worn in the Upper Paleolithic. An example are the figurines found at the Siberian sites of Mal'ta and Buret'.^[4] A discovery of human remains with fur-pants was made near Vladimir, dating to around 20,000 years ago.^[5]

• Wooden bridge ^{(middle of the 6th millenium BC)}

The discovery was made near Zabolotskoye Lake in Sergiyevo-Posadsky district. It is unclear yet whether the discovery was a bridge or a docking pier. The construction was created from birch logs with stone axes around 7500 years ago. The oldest presently-known wooden bridge was built around 6000 years ago in Switzerland.^[6]

• Composite bow ^{(around 3rd–2nd millennium BC)}

Composite bows may have been invented by the nomads of the Asiatic steppe, who may have based it on Northern Asian laminated bows.^[7] There are arrowheads from the burials at Krivoye Lake (part of the Sintashta-Petrovka culture) about 2100–1700 BCE, but the bow that shot them has not survived. The final form of a composite bow known as the Scythian bow was developed by the Cimmerians of North Caucasus in the 9th century BC.^[8]

• Wooden sculpture ^{(middle of the 8th millennium BC)}

The world's oldest-known wooden sculpture is the Shigir Idol made during the Mesolithic period. The idol was discovered in 1894 approximately 100 km from Yekaterinburg. The radiocarbon dating gives it an age of 9,500 years. The sculpture is displayed in the Historic Exhibition Museum in Yekaterinburg.^[9]

• Domestication of the horse ^{(around 4000-3500 BC)}

It is generally thought that horses were domesticated in the steppes of present-day Ukraine around 4000-3500 BCE.

• Pobedit

Pobedit is specialized alloy that is close in hardness to diamond (85-90 on the Rockwell scale). It was invented in USSR in 1929 and was used in mining, metal-cutting and as a material for special mechanical parts. Later a number of similar alloys were developed.^[10][11]

• Periodic table

The periodic table is a tabular display of the chemical elements, organized on the basis of their properties. Elements are presented in increasing atomic number. The table was invented in 1869 by Dmitry Mendeleyev. Using the table, he predicted the properties of elements yet to be discovered.

• Chromatography
• Synthetic rubber

The first commercially viable form of production of synthetic rubber, Polybutadiene, was first polymerized in 1910 by Sergei Lebedev. Due to his discoveries, the Soviet Union became the first country to achieve a substantial industrial production of the material in the late 1930s.^[12][13]

• Fire fighting foam
• Synthetic detergent

The Petrov contact liquor was created by Grigory Petrov in 1913. It is a surface-active agent (detergent) consisting of a mixture of naphthene sulfonic acids and alkyl-aryl sulfonic acids. Widely used around the world under various marketing brands.^[14][15]

• Nuclear desalination (BN-350 reactor)
• Theory of chemical structure

First developed by Aleksandr Butlerov in 1857–1861, the theory stated that the chemical compounds are not a random cluster of atoms and functional groups but structures with definite order formed according the valency of the composing atoms.