Once the Zombie Apocalypse hits, you’ll want to make sure that your apartment is as zombie-proof as possible. You likely won’t have access to modern luxuries like electricity, phone or other amenities. So, you’ll have to make do with a lot of DIY knowledge. Follow these tips to ensure safety from zombies in your home.
Know Your Zombie
Not all zombies are created equal, so it’s important to be prepared for whatever version of the undead you may face. Here are a few classic types:
Basic walkers: These classic zombies are slow and steady in their quest for flesh. They’re relatively easy to neutralize but travel in growing packs, and once they start piling up against barriers, you better watch out.
Runners: Start training, because these zombies are fast. You will not outrun them, so you’ll want to fortify your apartment and wait it out.
Stalkers: These are the biggest threat to apartment dwellers. As quadrupeds, they can scale buildings, which means most apartments will become giant zombie vending machines.
Your Defense Starts at the Door
While in the midst of battling zombies, muscle and brawn will certainly be useful. But nerd skills are an essential part of preparing for the attack.
Defending your door is all about the materials, so let’s look at door strengths and the number of zombies that each type of door can withstand. After running the physics calculations based on door strengths, we’re able to determine how many and what type of zombies can be fought off with what type of door.
Let’s start the calculations by looking at zombie speeds:
- Dawn of the Dead: 0.4 Steps Per Second (SPS)
- World War Z: 0.7 SPS
- Night of the Living Dead: 1 SPS
- Human Walking: 3 SPS
- 28 Days Later: 3.9 SPS
- Dawn of the Dead (remake): 4.4 SPS
- Human Running: 6 SPS
- World War Z: 6.7 SPS
Now that we have speeds, we can use the weight of an average American male to determine the amounts of kinetic energy and momentum.
A door, before it buckles or bends, can withstand a certain amount of energy per unit volume. Different door materials change the amount of yield strength of the door. “Thus, by using a rough estimate for the volume of a door,” said the physicist who ran the zombie calculations, “we can calculate the amount of energy needed to cause failure.”
A fast-moving zombie like the ones in World War Z travel at 6.7 steps per second (sps), which is faster than a running human. One of these zombies could crash into a door just one time and break through a MDF door that was reinforced with one 2×4. It would take two of these zombies to get through an oak door, and it would take three zombies if that oak door was reinforced with two 2x4s. Eight of these zombies could crash through an aluminum security door, and if the door was made of steel, it would take 21 zombies to access your apartment.
But not all zombies have that much force capacity. The zombies from 28 Days Later and the remake of Dawn of the Dead both travel at speeds that are between a walking human and a running human. The speed of the Dawn of the Dead zombies is 4.4 sps, which means that it would take 48 zombies to break through the steel security door that could withstand only 21 WWZzombies. The 28 Days Later zombies take even longer. Traveling at 3.9 sps, it would take 61 of these zombies before breaking through that steel security door. If you just had an oak door on your apartment, it would take just four zombies to access your home.
Yet some zombies travel slower than a walking human. Because they have less force, it will take longer for these zombies to break through your door, so you have a better chance for survival. The zombies from The Walking Dead travel at 1.9 sps. So it would take 15 zombies to break through an oak door, 92 zombies to get through an aluminum security door, and 254 zombies to get through a steel door.
With a traveling rate of 1 sps, Night of the Living Dead zombies could crash through a steel door if there were 917 of them. The slowest zombie is from Dawn of the Dead. At 0.4 sps, it would take four zombies to crash through an MDF door. But to get through a steel door, it would take 5,731 zombies.
Originally posted 2018-08-29 03:38:26.