Actually, see how the gears do not have to be load bearing? And how it the bridge balanced? Pretty clever and efficient. Way more than traditional drawbridge.
Actually, see how the gears do not have to be load bearing? And how it the bridge balanced? Pretty clever and efficient. Way more than traditional drawbridge.
Actually, see how the gears do not have to be load bearing? And how it the bridge balanced? Pretty clever and efficient. Way more than traditional drawbridge.