The Aserians
A battering ram, a siege engine originating in ancient times, is designed to break open the masonry walls of fortifications or to splinter their wooden gates. A battering ram is just a large, heavy log carried by several people and propelled with force into an obstacle.
The battering ram was and is used to tear down the walls of an opposing force's fortress entrance (the gates to a fort or castle). Modern-day battering rams are used by swat teams to tear through doors.
a scaling tower with a battering ram attached to it
No as the battering ram was a medieval siege machine
We studied the Assyrians and built a battering ram, chariot and a siege ... Chariots, battering rams and siege towers all make use of simple machines.
We're going to need a larger battering ram for thiscastle...The battering ram will be ready within the hour, Sire.We shall utilize the battering ram just after the second volley of burning rubbish has been delivered by our catapults.
Robert Dennard did not invent the battering ram, this was invented many 100's of years before he was even born. What Robert Dennard did invent was DRAM (Dynamic Random Access Memory).
A skilled battering ram technician can crank one out in 49 minutes
the battering ram is held by one or two people to bash a door down easier.
I think you mean battering ram?
A tortoise goes about its life looking after its shell and the battering ram is covered with a shell/roof.