original_query: What is an atmospheric diving suit (ADS) and how does it resemble a suit of armor?
query: What is an atmospheric diving suit (ADS) and how does it resemble a suit of armor?
answer: An atmospheric diving suit (ADS) is a small, one-person submersible that resembles a suit of armor.  It has elaborate pressure joints that allow movement while maintaining an internal pressure of one atmosphere, enabling deep dives without decompression or special gas mixtures. The articulated arms and legs, along with the pressure resistant joints, give it a bulky, armor-like appearance.