Why does this script not create and explosion?

function NuclearSequence()
	game.Lighting.Ambient = Color3.new(190,109,0)
	game.Lighting.OutdoorAmbient = Color3.new(190,109,0)
	game.Lighting.Brightness = 150
	game.Lighting.FogEnd = 5
	k = Instance.new("Explosion", game.Workspace)
	k.ExplosionType = "NoCraters"
	k.BlastRadius = Vector3.new250000000000000000000
	k.BlastPressure = 2500
	k.Position = Vector3.new(0,13.6,0)
	for i=1,149 do
		game.Lighting.Brightness = game.Lighting.Brightness - 1
		game.Lighting.FogEnd = game.Lighting.FogEnd + 670
		wait(.5)
	end
	game.Lighting.Ambient = Color3.new(117,117,117)
	game.Lighting.OutdoorAmbient = Color3.new(128,128,128)
end

It creates no explosion, everything else works correctly.

It does create an Explosion, but the BlastRadius is too high, so it is reset to 100. Explosions just don't go over 100, sadly.

1. It's a vector3 value, blastradius is a 32 bit integer.
2. Explosions can't get that big.

f1t33n