diff --git a/examples/subscribe_on.rb b/examples/subscribe_on.rb
new file mode 100644
index 0000000..d733d0f
--- /dev/null
+++ b/examples/subscribe_on.rb
@@ -0,0 +1,38 @@
+require 'rx'
+
+def in_a_second(n)
+  Rx::Observable.create do |observer|
+    sleep(1)
+    observer.on_next(n)
+    observer.on_completed
+  end
+end
+
+# subscribe_on will schedule ancestry on given scheduler; each sleep happens in a separate thread
+source = Rx::Observable.of(
+  in_a_second(1)
+    .map {|v| v + 1 }
+    .subscribe_on(Rx::DefaultScheduler.instance),
+  in_a_second(2)
+    .map {|v| v + 1 }
+    .subscribe_on(Rx::DefaultScheduler.instance)
+).merge_all
+.time_interval
+
+subscription = source.subscribe(
+    lambda {|x|
+        puts 'Next: ' + x.to_s
+    },
+    lambda {|err|
+        puts 'Error: ' + err.to_s
+    },
+    lambda {
+        puts 'Completed'
+    })
+
+# => Next: (3)@(1.004153)
+# => Next: (2)@(0.000251)
+
+while Thread.list.size > 1
+  (Thread.list - [Thread.current]).each &:join
+end
diff --git a/lib/rx/subscriptions/scheduled_subscription.rb b/lib/rx/subscriptions/scheduled_subscription.rb
index cada291..ae0d25a 100644
--- a/lib/rx/subscriptions/scheduled_subscription.rb
+++ b/lib/rx/subscriptions/scheduled_subscription.rb
@@ -1,8 +1,8 @@
 # Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
 
 module Rx
-  # Represents a disposable resource whose disposal invocation will be scheduled on the specified scheduler
-  class ScheduledDisposable
+  # Represents a subscription that is unsubscribed on the specified scheduler
+  class ScheduledSubscription
 
     attr_reader :scheduler, :subscription
 
@@ -21,12 +21,12 @@ def unsubscribed?
 
     # Unsubscribes the wrapped subscription on the provided scheduler.
     def unsubscribe
-      @scheduler.schedule lambda do
+      @scheduler.schedule lambda {
         unless @subscription.nil?
           @subscription.unsubscribe
           @subscription = nil
         end
-      end
+      }
     end
   end
 end
\ No newline at end of file
diff --git a/test/rx/operators/test_synchronization.rb b/test/rx/operators/test_synchronization.rb
new file mode 100644
index 0000000..3a3ef6f
--- /dev/null
+++ b/test/rx/operators/test_synchronization.rb
@@ -0,0 +1,26 @@
+# Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+require "#{File.dirname(__FILE__)}/../../test_helper"
+
+class TestObservableSynchronization < Minitest::Test
+  include Rx::ReactiveTest
+
+  def test_subscribe_on
+    scheduler = Rx::TestScheduler.new
+    mock = Rx::MockObserver.new scheduler
+    Rx::Observable.just(1)
+      .subscribe_on(scheduler)
+      .subscribe(mock)
+    assert_equal 0, mock.messages.length
+    scheduler.advance_by 100
+    assert_equal 2, mock.messages.length
+  end
+
+  def test_subscribe_on_default_scheduler_does_not_raise
+    Rx::Observable.just(1).subscribe_on(Rx::DefaultScheduler.instance).subscribe
+  end
+
+  def test_subscribe_on_current_thread_scheduiler_does_not_raise
+    Rx::Observable.just(1).subscribe_on(Rx::CurrentThreadScheduler.instance).subscribe
+  end
+end