diff --git a/src/app/pages/home/home-page.component.ts b/src/app/pages/home/home-page.component.ts
index 1a8075a..f6fb37b 100644
--- a/src/app/pages/home/home-page.component.ts
+++ b/src/app/pages/home/home-page.component.ts
@@ -172,7 +172,7 @@ export class HomePageComponent implements OnInit, OnDestroy {
       .force('link', d3.forceLink(this.links).distance(150))
       .force('center', d3.forceCenter(width / 2, height / 2))
       .force('collision', d3.forceCollide().radius(function (node: Node) {
-        return node.r;
+        return node.r * 1.4;
       }))
       ;
   }
@@ -267,8 +267,6 @@ export class HomePageComponent implements OnInit, OnDestroy {
   public DiscoveryStop(stopDate: Date) {
     console.log('DiscoveryStop', stopDate);
 
-    this.simulationRestart();
-
     this.simulation.stop();
   }