I figure that since I haven't posted for a few months that an appropriate reentry into the livejournal lifestyle would be to include specifications for an automatic zombie-detection and attack-prevention robot. Ideally as a spring term project, we could build this (or something similar but less expensive).
Casing: Ideally this would be a smallish boxy robot on wheels (imagine an automated go-kart). Anything too tall and it would be imbalanced if attacked by zombies. Anything too small and its projectile weapons won't have the necessary zombie-stopping force.
Power: A 6V, rechargeable car battery could be used to power the robot... or really just about anything else. Power won't be an issue.
Detection system: The robot would need a digital camera, a simple motion detector, and an infrared camera. The robot would be motion-activated (since presumable immobile zombies are harmless). Once activated a digital camera programmed to visible light would be used to detect any vaguely human shaped mobile objects (we wouldn't want the robot attacking cars and squirrels!). For any such shapes, the visible light image would be compared to an infrared image. Normal humans would clock in at around 98.6F, whereas zombies would clock in at whatever the air temperature is outside, so any human-like objects at room temperature would be declared zombies and tagged for destruction. (Depending on the sensitivity of the infrared camera, visible-light images may not even be necessary).
**Detection system issues: This system will not work on very hot days! Also, there may be some night-time related issues that I haven't considered. Also, software algorithms would have to be developed integrating these various components.
Warning system: As soon as zombies are detected, loudspeakers would activate with the message "Zombie attack eminent; evacuate all Veteran Avenue residences" repeated until the threat is averted. Also, a preprogrammed list of telephone numbers will be called, warning actual humans of the situation.
Attack-prevention system: This will depend on the goal. If the goal is to slow the zombies, quick-drying glue could be fired at the targets, holding them in place. If the goal is to disable them, machine guns could be fired at the shoulder and knee joints preventing the zombies from approaching or grabbing people. If the goal of the robot is distraction, the robot could just drive around in front of the zombies with highly adaptive evasive maneuvering. Finally, if the goal is destruction, grenades and / or dynamite could be thrown, however, this would have to be done at a long range.
Robot name: This is the most important part... what should the robot be called? Zombot (for ZOMbie roBOT), ZAPS (Zombie Attack Prevention System)
Alternatively, we could just build toothpick bridges... I remember those being fun to build.