Viscosity Collection

Oil and water, high-speed image
Oil and water. High-speed photograph of oil being poured onto water. Since oil and water are immiscible liquids (they cannot be mixed)

Bureau of Mines Interior Dept. between 1910 and 1920. Creator: Harris & Ewing. Bureau of Mines Interior Dept
Bureau of Mines Interior Dept. [Washington, DC], between 1910 and 1920. Man using viscosimeter, instrument used to measure the viscosity of a fluid

Georgia, Kakheti, Tsinandali. Chavchavadze Estate, winery and former home of Prince Alexander Chavchavadze, soldier and pioneer winemaker, wine tasting room

Crude oil C016 / 9780
Crude oil being poured. Crude oil is oil from the ground before it has been refined. It contains a varied mixture of hydrocarbons that can be separated out (refined) by heating

Rayon research, 1950s C018 / 0655
Rayon research. Laboratory researcher testing viscosity in the viscose process used in the manufacture of rayon. Liquid viscose, under carefully controlled temperature

Crude oil burning C016 / 9779
Crude oil burning in a Petri dis. Crude oil is oil from the ground before it has been refined. It contains a varied mixture of hydrocarbons that can be separated out (refined) by heating

Quality control in yoghurt factory
Dairy production. A sample of yoghurt being tested for its viscosity in a quality control laboratory. Viscosity is one of the indicators of creaminess used by consumers to assess the quality of

Bitumen being poured onto a surface. Bitumen is a product of the refining of crude oil. Crude oil is a mixture of hydrocarbons that is heated to separate it into parts called fractions

Lubricating oil
Heavy lubricating oil being poured onto a watch glass. Lubricating oil is a product of the refining of crude oil. Crude oil is a mixture of hydrocarbons that is heated to separate it into parts

Lava flow and vent
Lava flow. Night time view of lava flowing from a small vent on Etna. This vent is a hornito, a relatively small outlet which is normally only throws out lava bombs

Lava flow at night. Night view of a bright lava flow on the flanks of Etna. The lights in the background reveal the city of Catania about 16 kilometres away

Oil being poured. This is pure refined light oil being poured onto precision machine parts. Oil is used in machines with moving parts as lubrication to help the parts move smoothly

Machine oil on metal
Drops of fine machine oil on Zinc plating

Oil drop under axle. Drop of clean lubricating machine oil on the underside of a machine axle. This is a rod around which a wheel turns

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Viscosity, the fascinating property of fluids, is beautifully depicted in various scenarios. Take oil and water for instance - their distinct viscosities create a mesmerizing dance as they resist blending together. In a high-speed image, we witness the graceful interplay between these two immiscible substances. In Georgia's picturesque region of Kakheti lies the Tsinandali Chavchavadze Estate winery. Here, viscosity plays a crucial role in crafting exquisite wines. As grapes are pressed and fermented, their juices transform into liquid art with varying viscosities that contribute to each wine's unique character. Delving deeper into fluid dynamics, we encounter crude oil C016 / 9780 burning fiercely. Its thick viscosity becomes evident as it engulfs everything in its path with an intense flame that seems almost unstoppable. The significance extends beyond fiery spectacles; it finds application even in scientific research. In the 1950s at Rayon Research facilities (C018 / 0655), scientists explore this property to develop innovative materials and fabrics with desired characteristics. Moving away from laboratories and factories, quality control takes center stage at a yogurt factory where viscosity determines the perfect consistency of every batch produced. Precise measurements ensure that each spoonful delivers creamy delight to consumers' palates. Bitumen, commonly used for road construction or waterproofing roofs due to its high viscosity, showcases its durability against harsh weather conditions while providing reliable protection year after year. Lubricating oils play an essential role in keeping machinery running smoothly by reducing friction through their optimal viscosities. They act as silent heroes behind efficient engines and well-oiled gears powering industries worldwide. Away from industrial applications lie soap bubbles floating effortlessly through the air – delicate orbs reflecting vibrant colors under sunlight's gentle touch. Their ephemeral beauty owes itself partly to surface tension caused by differing viscosities within soapy solutions.