Is There Such a Thing as an Unbreakable Door?
Statistics do not lie. Break-ins into apartments or family houses happen everyday. There are only two options: my door will either protect my possesions, or not.
In theory, the entrance door may be a common, regular door; aka security door; or an unbreakable door - which will really protect my property.
How do we test the unbreakability of the door? Only one choice presents itself - the toughest one. We'll use a real cannon.