Well, you wouldn't actually need to fill the box, just exceed the weight limit. And since neuronium weighing just 70 Pounds would have negligible volume, the problem becomes on of making a containment chamber that would fit inside the box.
Parking Lot
Well, you wouldn't actually need to fill the box, just exceed the weight limit. And since neuronium weighing just 70 Pounds would have negligible volume, the problem becomes on of making a containment chamber that would fit inside the box.