title: difference between scope and namespace of ruby-on-rails 3 routing
body: <p>I can't understand what the difference is between a namespace and a scope in the routing of ruby-on-rails 3.</p>
  
  <p>Could someone please explain?</p>
  
  <pre><code>namespace "admin" do
    resources :posts, :comments
  end
  
  scope :module =&gt; "admin" do
    resources :posts, :comments
  end
  </code></pre>