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2. Whiteboard - Wikipedia

   en.wikipedia.org/wiki/Whiteboard

   A combination between a whiteboard and a cork bulletin board Original early 1960s ad for "Plasti-slate", the first whiteboard/dry erase board invented by Martin Heit. It has been widely reported that Korean War veteran and photographer Martin Heit and Albert Stallion, an employee at Alliance, a leading flat rolled steel sheet supplier should be credited with the invention of the whiteboard in ...

3. Magna Doodle - Wikipedia

   en.wikipedia.org/wiki/Magna_Doodle

   A Magna Doodle drawing board. Magna Doodle is a magnetic drawing toy, consisting of a drawing board, a magnetic stylus, and a few magnet shapes.Invented in 1974 by Pilot Corporation, [1] over forty million units have been sold to date worldwide, under several brands, product names and variations, including Tyco and Mattel/Fisher Price.

4. Kingboard Holdings - Wikipedia

   en.wikipedia.org/wiki/Kingboard_Holdings

   Kingboard Holdings Limited, formerly known as Kingboard Chemical Holdings Limited [1] (SEHK: 148) is a manufacturer of laminates.Owned by Paul Cheung Kwok Wing's family, [2] the company manufactures and distributes laminates, copper foil, coke, methanol, caustic soda, glass fabric, glass yarn, bleached craft paper, printed circuit boards, chemicals, liquid crystal displays, and magnetic ...

5. Go equipment - Wikipedia

   en.wikipedia.org/wiki/Go_equipment

   Large magnetic boards are also available for demonstration purposes, during lectures and other presentations. A typical folding board, with Go bowls and stones next to it. Wooden boards, one to two inches thick, are commonly used. They are known as "table boards" because they are placed on tables (compare "floor board" below.)

6. Spin glass - Wikipedia

   en.wikipedia.org/wiki/Spin_glass

   A spin glass should not be confused with a "spin-on glass". The latter is a thin film, usually based on SiO 2, which is applied via spin coating. The term "glass" comes from an analogy between the magnetic disorder in a spin glass and the positional disorder of a conventional, chemical glass, e.g., a window glass.

7. Hard disk drive platter - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive_platter

   In today's hard drives each of these magnetic regions is composed of a few hundred magnetic grains, which are the base material that gets magnetized. As a whole, each magnetic region will have a magnetization. One reason magnetic grains are used as opposed to a continuous magnetic medium is that they reduce the space needed for a magnetic region.