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[1] [2] The more rapid contraction of the outer layer during manufacturing induces compressive stresses in the surface of the glass balanced by tensile stresses in the body of the glass. Fully tempered 6-mm thick glass must have either a minimum surface compression of 69 MPa (10 000 psi) or an edge compression of not less than 67 MPa (9 700 psi ...
That year, one of Nike SB's spokespersons Lance Mountain decided to release the Nike Blazer SB, a version of the Nike Blazer basketball shoe from the early 1970s. It was named the Nike SB Blazer and several new features were added, such as the padded collar and Zoom Air insoles. Mountain previously rode for Adidas [6] and then joined Nike SB in ...
The B 2 O 3 content for borosilicate glass is typically 12–13% and the SiO 2 content over 80%. High chemical durability and low thermal expansion (3.3 × 10 −6 K −1) – the lowest of all commercial glasses for large-scale technical applications – make this a versatile glass material. High-grade borosilicate flat glasses are used in a ...
The latent image captured in the glass is made visible by heating. [6] [2] [4] This heat treatment is done by raising the temperature to about 500 °C to allow the oxidation-reduction reaction to form silver nanoclusters. Following this, the temperature is raised to 550–560 °C and lithium metasilicate (Li 2 SiO 3) forms on the silver ...
The Nike MAG is a limited-edition shoe created by Nike Inc. [1] It is a replica of a self-tying shoe featured in the film Back to the Future Part II. The Nike Mag was originally released for sale in 2011 and again in 2016. Both launches were in limited quantities. The 2011 release was limited to 1,510 pairs, while the 2016 release was limited ...
To anneal glass, it is necessary to heat it to its annealing temperature, at which its viscosity, η, drops to 10 13 Poise (10 13 dyne-second/cm 2). [2] For most kinds of glass, this annealing temperature is in the range of 454–482 °C (849–900 °F) [ citation needed ] , and is the so-called stress -relief point or annealing point of the glass.
Nike is an abstract sculpture depicting Nike, the Greek goddess of victory, designed by Greek artist Pavlos Angelos Kougioumtzis. [1] Versions of the statue have been donated to every host city of the Olympics since 1996.
In any case, there are some good answers to your question at the Science Desk. — QuantumEleven | (talk) 12:24, 1 February 2006 (UTC) [ reply ] First thing I wouldn't do is ask for what tests to perform at the Wikipedia Reference Desk.