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Spacewarp is a line of build-it-yourself, marble-run toy "roller coasters" first made in the 1980s by Bandai. [1] Users cut lengths of track to the correct size from a single roll of thick plastic tubing, forming curves and loops held in place by plastic track rail holders which attach to metal rods held vertical in a black plastic base.
Cultured marble countertops are man made vanity tops that have the appearance of and resemble real stone marble. [6] [unreliable source?] Cultured marble countertops are made by mixing high strength polyester resin and real marble stone dust. The combination is then formulated with additional chemicals and poured into a cast mold.
Carrara marble, or Luna marble (marmor lunense) to the Romans, is a type of white or blue-grey marble popular for use in sculpture and building decor. It has been quarried since Roman times in the mountains just outside the city of Carrara in the province of Massa and Carrara in the Lunigiana , the northernmost tip of modern-day Tuscany , Italy.
For example, 10% oleum can also be expressed as H 2 SO 4 ·0.13611SO 3, 1.13611SO 3 ·H 2 O or 102.25% sulfuric acid. The conversion between % acid and % oleum is: % = + % For x = 1 and y = 2 the empirical formula H 2 S 2 O 7 for disulfuric (pyrosulfuric) acid is obtained. Pure disulfuric acid is a solid at room temperature, melting at 36 °C ...
Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO 3) or dolomite (CaMg(CO 3) 2) that have recrystallized under the influence of heat and pressure. [1] It has a crystalline texture, and is typically not foliated ( layered ), although there are exceptions.
The Princess of Soubise playing solitaire, 1697. Peg Solitaire, Solo Noble, Solo Goli, Marble Solitaire or simply Solitaire is a board game for one player involving movement of pegs on a board with holes.
In 2006, Bakker created the first version of the Jelle's Marble Runs YouTube channel. [10] [11] He received the Guinness World Record for the world's longest marble run on 21 May 2009, a record that he held until 2011. [12] Greg Woods, an early fan of the channel, produced a commentary on his own for one of the marble race videos. Bakker liked ...
In documentation and instructional design, tutorials are teaching-level documents that help the learner progress in skill and confidence. [7] Tutorials can take the form of a screen recording (), a written document (either online or downloadable), interactive tutorial, or an audio file, where a person will give step by step instructions on how to do something.