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Rectifier image
Pattern type Stable reflector
Number of cells 59
Bounding box 41×33
Angle 180°
Repeat time 106
Discovered by Adam P. Goucher
Year of discovery 2009

The rectifier is a 180° stable glider reflector made up of two eater 1s, a block, a beehive, and a modification of eater 3. The normal tub-stabilised eater 3 can be used here to reduce the population count, but the snake-stabilised eater 3 has a smaller bounding box. The rectifier is notable for its recovery time of 106 generations and small number of catalysts. It can replace the boojum reflector in a large number of instances, although in some cases it cannot fit into the space provided. Its advantages over the boojum reflector include

  • It has a much faster recovery time, allowing certain guns to be compacted;
  • Its passive bounding box is slightly smaller, so it can further compact many glider guns;
  • Its output path is free of catalysts, enabling it to be used as a merge device.

The transparent beehive reaction was discovered by Paul Callahan in 1996.

Image gallery

An incoming glider (in green) and an outgoing glider (in red) 167 generations later

External Links