Kinetic Sand

Kinetic Sand is a three-dimensional building toy made of 98% sand and 2% polydimethylsiloxane (a type of silicone oil) that mimics the physical properties of wet sand. Kinetic Sand was originally designed for sculpting but is commonly sold as indoor play sand for children. In appearance it resembles light brown sugar. It can be molded, it sticks to itself but not to most other materials or surfaces, and it does not dry out.

The name "Kinetic Sand" is a trademarked brand of Spin Master. Other companies make comparable products which do not use the Kinetic Sand name.

References

Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e. a soil containing more than 85% sand-sized particles (by mass).

The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO₂), usually in the form of quartz. The second most common type of sand is calcium carbonate, for example aragonite, which has mostly been created, over the past half billion years, by various forms of life, like coral and shellfish. It is, for example, the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean.

Composition

In terms of particle size as used by geologists, sand particles range in diameter from 0.0625 mm (or ¹⁄₁₆ mm) to 2 mm. An individual particle in this range size is termed a sand grain. Sand grains are between gravel (with particles ranging from 2 mm up to 64 mm) and silt (particles smaller than 0.0625 mm down to 0.004 mm). The size specification between sand and gravel has remained constant for more than a century, but particle diameters as small as 0.02 mm were considered sand under the Albert Atterberg standard in use during the early 20th century. A 1953 engineering standard published by the American Association of State Highway and Transportation Officials set the minimum sand size at 0.074 mm. A 1938 specification of the United States Department of Agriculture was 0.05 mm. Sand feels gritty when rubbed between the fingers (silt, by comparison, feels like flour).

Kinetic

Kinetic (Ancient Greek: κίνησις “kinesis”, movement or to move) may refer to:

Art and entertainment

Companies

Technology

The Sand

The Sand is a 2015 horror film starring Brooke Butler, Jamie Kennedy and Mitchel Musso.

Plot

A group of friends are having a party at the beach with some of their classmates because it's spring break. While one of the friends Heather (Etalvia Cashin) is filming the party, two of the boys named Vance (Hector David Jr.) and Gilbert (Cleo Berry) find a giant ball covered in a strange gooey substance. The party continues, with all party guests having to put their phones in a bag so the party can't be seen online.

The next morning, two of the friends, Kaylee (Brooke Butler) and Mitch (Mitchel Musso) awake on the lifegaurd building. Kaylee's boyfriend Jonah (Dean Geyer) awakens in a nearby car next to a girl named Chanda (Meagan Holder). In the back of the car are Vance, and his girlfriend Ronnie (Cynthia Murell). Gilbert wakes up, having been stuck in a trashcan and a topless girl named Marsha (Nikki Leigh) wakes up, having fallen asleep on a table. The rest of the teenagers, including Heather, are nowhere to be found, just a bunch of empty sleeping bags left in their place.

Magic sand

Hydrophobic Sand/Magic Sand is a toy made from sand coated with a hydrophobic compound. The presence of this hydrophobic compound causes the grains of sand to adhere to one another and form cylinders (to minimize surface area) when exposed to water. When the sand is removed from water, it is completely dry and free flowing. Magic sand is also known as Aqua Sand.

These properties are achieved with ordinary beach sand, which contains tiny particles of pure silica, and exposing it to vapors of trimethylsilanol (CH₃)₃SiOH, an organosilicon compound. Upon exposure, the trimethylsilane compound bonds to the silica particles while forming water. The exteriors of the sand grains are thus coated with hydrophobic groups.

Magic sand was originally developed to trap ocean oil spills near the shore. This would be done by sprinkling magic sand on floating petroleum, which would then mix with the oil and make it heavy enough to sink. Due to the expense of production, it is not being used for this purpose. It has also been tested by utility companies in Arctic regions as a foundation for junction boxes, as it never freezes. It can be also used as an aerating medium for potted plants.