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Spontaneous glass breakage is a phenomenon by which tempered glass may spontaneously break without any apparent reason. The most common causes are: [13] [14] Internal defects within the glass such as nickel sulfide inclusions. Nickel sulfide defects can cause spontaneous breakage of tempered glass years after its manufacturing. [15]
A redesigned version of Clackers enjoyed a revival in the 1990s. The new design used modern plastics which would not shatter and two free-swinging, opposing triangles attached to a handle, with weighted balls at the ends. They are often sold in bright neon colors as noisemaker toys or party favors. [7]
Annealing is a process of slowly cooling hot glass objects after they have been formed, to relieve residual internal stresses introduced during manufacture. Especially for smaller, simpler objects, annealing may be incidental to the process of manufacture, but in larger or more complex products it commonly demands a special process of annealing in a temperature-controlled kiln known as a lehr. [1]
Safety glass is glass with additional safety features that make it less likely to break, or less likely to pose a threat when broken. Common designs include toughened glass (also known as tempered glass), laminated glass , and wire mesh glass (also known as wired glass).
Magma rich in silica and poor in dissolved water is most easily cooled rapidly enough to form volcanic glass. As a result, rhyolite magmas, which are high in silica, can produce tephra composed entirely of volcanic glass and may also form glassy lava flows. [2] Ash-flow tuffs typically consist of countless microscopic shards of volcanic glass. [3]
Image credits: BigBAAAATTYcrease #2. Remember random stories I tell and/or notice things about me (what I like/don’t like, etc) without my directly telling you the info.
Flying glass resulting from an explosion poses a significant risk in the event; up to 85% of injuries from an explosion are due to flying glass. [1] Severity of injury from flying glass depends on the peak overpressure of the blast. [2] Potential for injury has been derived from both experiments and theoretical modeling of blast effects.
Prince Rupert's drops have remained a scientific curiosity for nearly 400 years due to two unusual mechanical properties: [4] when the tail is snipped, the drop disintegrates explosively into powder, whereas the bulbous head can withstand compressive forces of up to 664,300 newtons (67,740 kg f).