diff --git a/TODO.md b/TODO.md
index c44cc19..771cbfc 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,11 +2,7 @@
 
 - Update all texts with polite ones
 - Achievements (at least alert only)
-- Question mark before discovery
-- Tease for additional upgrades/workers/research
 - Wikipedia/additional info about everything
 - More feedback
     - Money change indicators (+ green / - red)
-    - Detector feedback for workers
-- Detector upgrade
-- Change hire to be over whole item?
\ No newline at end of file
+    - Detector feedback for workers
\ No newline at end of file
diff --git a/js/detector.js b/js/detector.js
index f9351dd..91ea058 100644
--- a/js/detector.js
+++ b/js/detector.js
@@ -257,7 +257,7 @@ var detector =
 
     addEvent: function()
     {
-        var num = Math.ceil(10 * Math.random());
+        var num = Math.ceil(20 * Math.random());
 
         for (var i = 0; i < num; i++) {
             var index = Math.round(Math.random() * (detector.tracks.length - 1));
@@ -266,6 +266,17 @@ var detector =
         }
     },
 
+    addEventExternal: function()
+    {
+        var num = Math.min(30 * achievements.count.workers / 10, 30);
+
+        for (var i = 0; i < num; i++) {
+            var index = Math.round(Math.random() * (detector.tracks.length - 1));
+            var event = new ParticleEvent(detector.tracks[index], num, true);
+            detector.events.list.push(event);
+        }
+    },
+
     draw: function()
     {
         detector.events.ctx.clearRect(0, 0, 400, 400);
diff --git a/js/event.js b/js/event.js
index 041873a..a21ee8a 100644
--- a/js/event.js
+++ b/js/event.js
@@ -1,11 +1,12 @@
-function ParticleEvent(type, count)
+function ParticleEvent(type, count, external)
 {
+    this.work = typeof external !== 'undefined' ? external : false;
     this.type = type;
     this.length = 0;
     this.radius = 0;
     this.direction = 0;
     this.sign = (Math.random() - 0.5 >= 0) ? 1 : -1;
-    this.alpha = 1;
+    this.alpha = this.work ? 0.5 : 1;
     this.count = count;
 
     switch (this.type.name)
diff --git a/js/game.js b/js/game.js
index 2b43afc..42c0fd0 100644
--- a/js/game.js
+++ b/js/game.js
@@ -214,6 +214,7 @@
         sum += workers[i].hired * workers[i].rate;
       }
       lab.acquire(sum);
+      detector.addEventExternal();
     }, 1000);
   }]);