Where an attempt is made to open a protected door or flap during operation, the hingeoperated switches LSR/TS and the hasp-operated switches LSR/TKG immediately disconnect the power supply to the machine or installation. Opening is registered at an angle of only 5 degrees, and so even tampering is not possible.
The anatomy and structure of the five sense organs of the human body: vision, hearing, smell, taste, and touch.
Paul remarks that Katczinsky has a sixth sense. Somehow he is able to find what no one else can: When the men have nothing but metal for a mattress, he finds straw; when the men are starving, he goes off on his own and returns with hot, baked bread and a blood-stained bag with horse-flesh. That is Kat.