FACTOID # 169: Train spotters should go to Australia - Australians have more railway per capita than anyone else on the globe.
 
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Encyclopedia > Pincushion

A pincushion (or less commonly pin cushion) is a small cushion, typically 3-5 cm across, which is used in sewing to store pins with their heads protruding so as to take hold of them easily.


Pincushions are typically filled tightly, so as hold pins rigidly once placed.


The distinctive appearance of a pin-filled pincushion has resulted in the term being used for a variety of other things:

  • pincushion (plant), plants of the genus Leucospermum
  • plants of the genus Scabiosa
  • pincushion cactus
  • sea pincushion, a type of starfish
  • pincushion distortion in video displays

  Results from FactBites:
 
Pincushion Cactus (156 words)
Pincushion Cactus is a generic name given to a variety of small, attractive and diverse cacti.
The flowers of the Pincushion Cactus can be used as a rain gauge of the previous summers monsoon season.
Pincushions bloom in early summer with pink to lavender flowers which form a crown at the top of the plant that lasts several days.
Pincushion distortion correction apparatus - Patent 4409523 (3007 words)
A pincushion distortion correction apparatus according to claim 1, wherein said two pieces constituting ferromagnetic core have respectively four legs and a common portion, and said space gap means is provided between the first and second legs of said two pieces of cores.
For correcting horizontal pincushion distortions, a parabolic current changing at the vertical scanning frequency is caused through the control coil 27 to modulate the horizontal deflecting current flowing through the controlled coils 28.sub.B and 28.sub.C, thus obtaining a correction such that the horizontal deflection current becomes maximum at the center of the vertical scanning portion.
The assembled form of the pincushion distortion saturable reactor apparatus 11 is practially the same as the apparatus of the first embodiment, but this embodiment is different from the first embodiment in the position, in which the core halves of the apparatus are coupled to each other, and the assembly can be more readily made.
  More results at FactBites »


 

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