diff --git a/main.lua b/main.lua
index c0a2c4c..69140ad 100644
--- a/main.lua
+++ b/main.lua
@@ -9,43 +9,39 @@ function love.load()
 
   -- simulation variables
   CONST_G = 39.5
-  TIME_SPEED = 0.05
   CONST_S = 0.15
 
   T = 0
+  TIME_SPEED = 0.25
 
   require "class"
 	require "body"
 
 	newBody(0,0,300,{1,0,0})
-	newBody(0,0.1,100,{0,1,0})
-	newBody(0.1,0,200,{0,0,1})
-	newBody(0.1,0.1,50,{1,1,0})
-	newBody(0.1,0.2,250,{1,0,1})
-	newBody(0.2,0.1,150,{0,1,1})
+	newBody(0,100,100,{0,1,0})
+	newBody(100,0,200,{0,0,1})
+	newBody(100,100,50,{1,1,0})
+	newBody(100,200,250,{1,0,1})
+	newBody(200,100,150,{0,1,1})
 
 end
 
 function love.update(dt)
-
-  T = T + dt
-  while T > TIME_SPEED do
-    UpdateBodiesAcceleration()
-    UpdateBodiesVelocity(dt)
-    UpdateBodiesPosition(dt)
-    T = T - TIME_SPEED
-  end
+  T = T + dt * TIME_SPEED
+  UpdateBodiesAcceleration()
+  UpdateBodiesVelocity(dt * TIME_SPEED)
+  UpdateBodiesPosition(dt * TIME_SPEED)
 end
 
 function love.draw()
   -- draw bodies
   for n, body in pairs(BodyList) do
     love.graphics.setColor(body.color[1],body.color[2],body.color[3])
-    love.graphics.circle("line",body.x+SCREEN_WIDTH/2,body.y+SCREEN_HEIGHT/2,10)
+    love.graphics.circle("line",body.x+SCREEN_WIDTH/2,body.y+SCREEN_HEIGHT/2,math.sqrt(body.mass))
   end
   -- draw info
   love.graphics.setColor(1,1,1)
-  love.graphics.print(T.."/"..TIME_SPEED)
+  love.graphics.print(T)
   for n, body in pairs(BodyList) do
     love.graphics.print("mass: "..body.mass.." x,y: "..body.x..", "..body.y,0,15*(n))
   end