gistfile1.rb

[2:hinmanm@Xanadu:~]% ruby -v
ruby 1.9.1p243 (2009-07-16 revision 24175) [i386-darwin10.0.0]
[2:hinmanm@Xanadu:~]% sudo gem install duration
Successfully installed duration-0.1.0
1 gem installed
Installing ri documentation for duration-0.1.0...
Updating class cache with 3078 classes...
Installing RDoc documentation for duration-0.1.0...
[2:hinmanm@Xanadu:~]% irb
1.9.1 >> require 'duration'
LoadError: no such file to load -- duration
        from (irb):1:in `require'
        from (irb):1
        from /Users/hinmanm/.rvm/ruby-1.9.1-p243/bin/irb:12:in `<main>'