I loved my ragged copy of Deathworld when I was a kid. Give a paragraph that belongs in the Central Supply Catalog that fits the following narrative from Deathworld, 1960, Analog, by Harry Harrison.
"This is the secret of the power holster," Brucco said, tapping the flexible cable. "It is perfectly loose while you are using the weapon. But when you want it returned to the holster-" Brucco made an adjustment and the cable became a stiff rod that whipped the gun from Jason's hand and suspended it in midair.
"Then the return." The rod cable whirred and snapped the gun back into the holster. "The drawing action is the opposite of this, of course."
"A great gadget," Jason said. "But how do I draw? Do I whistle or something for the gun to pop out?"
"No, it is not sonic control," Brucco answered with a sober face. "It is much more precise than that. Here, take your left hand and grasp an imaginary gunbutt. Tense your trigger finger. Do you notice the pattern of the tendons in the wrist? Sensitive actuators touch the tendons in your right wrist. They ignore all patterns except the one that says hand ready to receive gun. After a time the mechanism becomes completely automatic. When you want the gun, it is in your hand. When you don't, it is in the holster."
"This is the secret of the power holster," Brucco said, tapping the flexible cable. "It is perfectly loose while you are using the weapon. But when you want it returned to the holster-" Brucco made an adjustment and the cable became a stiff rod that whipped the gun from Jason's hand and suspended it in midair.
"Then the return." The rod cable whirred and snapped the gun back into the holster. "The drawing action is the opposite of this, of course."
"A great gadget," Jason said. "But how do I draw? Do I whistle or something for the gun to pop out?"
"No, it is not sonic control," Brucco answered with a sober face. "It is much more precise than that. Here, take your left hand and grasp an imaginary gunbutt. Tense your trigger finger. Do you notice the pattern of the tendons in the wrist? Sensitive actuators touch the tendons in your right wrist. They ignore all patterns except the one that says hand ready to receive gun. After a time the mechanism becomes completely automatic. When you want the gun, it is in your hand. When you don't, it is in the holster."