Surviving In Zombieland

When I hear the phrase "random walk", I remember learning about it in physics in high school, in particular, when trying to imagine how long it might take for a photon to escape from the sun. I never thought about it in relation to the likelihood of encountering zombies.

Physicist Davide Cassi at the UniversitÓ di Parma in Italy hasn't either, although the wording of his paper does seem somewhat suggestive. Here's the summary:

Target annihilation by diffusing particles in inhomogeneous geometries
The survival probability of immobile targets, annihilated by a population of random walkers on inhomogeneous discrete structures, such as disordered solids, glasses, fractals, polymer networks and gels, is analytically investigated. It is shown that, while it cannot in general be related to the number of distinct visited points, as in the case of homogeneous lattices, in the case of bounded coordination numbers its asymptotic behaviour at large times can still be expressed in terms of the spectral dimension, and its exact analytical expression is given. The results show that the asymptotic survival probability is site independent on recurrent structures, while on transient structures it can strongly depend on the target position, and such a dependence is explicitly calculated.

Cassi appears to suggest that you'd be safest from zombies while hiding in a large, complex environment (like a mall), as opposed to the wide open spaces. Since zombies are fictional, of course, you can only watch zombie movies and their characters to see if this approach works out.


(Zombieland movie poster)

So what do math models have to do with science fiction? Take a look at this interesting video about the development of game programs (in this case, Left 4 Dead).

While you're at it, you might want to brush up on the math of zombie attacks, just to be on the safe side.

From Target annihilation by diffusing particles in inhomogeneous geometries via Inside Science; thanks to Moira for the tip. Oh, and don't forget to google the phrase "random walk" to look for interesting articles.

Scroll down for more stories in the same category. (Story submitted 10/1/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Culture ")

Sex In Driverless Cars? Updated With Video!
'...admirable for petting.' - David H. Keller, 1935.

Xinhua AI Anchor Puts CGI Face To Automated News
'...a congeries of software agents.' - William Gibson, 1996.

Wirewax Watching You Watch, Adjusting Your Experience
'He adjusted the n, the r and b knobs, and hopefully anticipated a turn for the better...' - Philip K. Dick, 1964.

Disney Keeps Backups Of Star Wars Franchise Actors
'She is a personality-construct, a congeries of software agents...' - William Gibson, 1996.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Wound Healing With Wearable Nanogenerators
'... forcing the energy transfer which allowed him to ... erase the other internal-external damage.'

Flying Dragon Robot Transforms In Mid-Air
Terrific prototype video.

Negative Matter Fluid Theorized In New Paper
'Of course, being negative matter, when you push it, it comes toward you..'

Grow Structures Upon Planetfall - Myco-Architecture
'They'll also start pulling in gases and liquids from the local atmosphere...'

MXene Hydrogel Skin For Robots Flexes And Senses
'The plastex swam and whirled like boiling toothpaste...'

EXPLORER, The First Total-Body Scanner
'The object is built up of an infinite series of plane layers, at the focus of the ray...'

UK Police AI To Stop Criminals Before They Strike
'... the computing mechanisms that studied and restructured the incoming material.'

Sonitus Audio Interface Positioned Beyond The Noise
'... an instrument having relatively small bit pieces adapted to be gripped between the teeth.'

Volvo's Self-Driving Mining Trucks
'A procession of automatic ore carts was racing over the bleak slag'

Audi Pop.Up Autonomous Electric Flying Car
'The cab was an egg-shaped bubble of light metals and plastics...'

Music Not Impossible (MNI) Vibrotactile Wearable Experience
Don't you want to experience the 'feely' effects?

Chinese Face Recognition Mistakes Bus Ad For Jaywalker
'... the imprint of her image on the telephoto cell.'

A Look Back At Apollo's Emergency Escape Vehicle
'A simple mechanism... it drove the iron ball through space like a ship.'

InMotion Glide 3 Electric Unicycle For The Last Mile
'...gyro-stabilized on a single wheel.'

China's Social Credit System - A Facebook-1984 Mashup
'Prestige, face, mana, repute, glory: the Sirenese word is strakh.'

Musk Declares Tesla Supercharger Capacity Will Double By Next Year
'Recharge the batteries... in almost every town and village...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.