Maglev Express Software On Macos

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Sep 17, 2019  Maglev uses energy to lift an extremely heavy train. That vertical energy used does not move the train forward against air resistance. Maglev of a train versus steel wheels on metal rolling surface is trading energy to lift a multi-ton object for. Jun 14, 2016  In Maglev, superconducting magnets suspend a train car above a U-shaped concrete guideway. Like ordinary magnets, these magnets repel one another when matching poles face each other. “A Maglev train car is just a box with magnets on the four corners,” says Jesse Powell, the son of the Maglev inventor, who now works with his father. Jan 16, 2019  Maglev Train: An engineering masterpiece. The word ‘Maglev’ is derived from the words ‘magnetic levitation’. Maglev is a train transportation system where two sets of magnets levitate and push the Maglev train forward. The first set repels and lifts the train upwards while another set pushes the train forward as an entire train is now frictionless. Maglev (derived from magnetic levitation), is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation from a very large number of magnets for lift and propulsion. This method has the potential to be faster, quieter and smoother than wheeled mass transit systems.

Developer(s)GemTalk Systems
Initial release2008; 12 years ago
Stable release
Written inSmalltalk, Ruby
Operating systemCross-platform: Solaris, AIX, Linux, Mac OS X
TypeRuby programming language interpreter
LicenseMIT, GPL, others[1]

MagLev is an alternative implementation of the Ruby programming language built on the GemStone/S virtual machine from GemTalk Systems.


Maglev runs inside an image like Smalltalk, offering transparent object persistence[2][failed verification][3] to Ruby objects and classes. Object persistence is based on ACID transactions that allow multiple running instances to see a shared object graph. Maglev uses a process-based concurrency model, mapping Ruby threads to Smalltalk Processes[4][self-published source?], which are scheduled in the VM as green threads.

Ruby Compatibility[edit]

Maglev Express Mac

Maglev targets Ruby 1.8.7 and runs a significant number of RubySpec. It supports several C extensions including Nokogiri, JSON and bcrypt.

Maglev Express Software On Macos Mac

Gemstone/S Resources[edit]

  • GemStoneS 64 bit 3.1.x Documentation, July 3, 2012, retrieved July 29, 2012


  1. ^
  2. ^'Programming Guide for GemStone/S 64 Bit Version 1'(PDF), VMware, July 2012, retrieved July 29, 2012
  3. ^'MagLev – Object Persistence with Ruby and Smalltalk'(PDF), Bachelor thesis, Hasso Plattner Institute, July 1, 2013, retrieved February 22, 2014
  4. ^Phoenix, Evan (October 14, 2011), 'Ruby, Concurrency, and You', Engine Yard Blog, retrieved July 29, 2012

External links[edit]

  • Fernandez, Obie (May 30, 2008), MagLev is Gemstone/S for Ruby, Huge News, retrieved July 29, 2012
  • Taft, Darryl K. (June 6, 2008), 'MagLev Rocks the Ruby House', eWeek, retrieved July 29, 2012
  • Grigorik, Ilya (January 15, 2010), Distributed Ruby with the MagLev VM, retrieved July 29, 2012
  • Schuster, Werner (November 15, 2011), 'NoSQL OODB with Smalltalk-based Ruby VM: MagLev 1.0 Released', InfoQ, retrieved July 29, 2012

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