Q&A with Doug Marcaida

Today we had the opportunity to interview a very special guest: Doug Marcaida. Doug is a man of many talents—he's the founder and expert martial arts instructor at Marcaida Kali, an experienced knife designer (known for the DART karambit), and also one of the judges on the History channel hit TV series Forged in Fire.

Even though he has been on the road in Europe, Doug graciously answered our questions and gave us some insight into his martial arts and knife-designing philosophies. In fact, he gave us so much good info, we decided to split it into two parts for both RECOILweb and OFFGRIDweb readers. Check out the Q&A below, then hit the link at the bottom of this page for even more of Doug's answers at RECOILweb.

General Questions

OFFGRIDweb: First of all, thanks very much for taking the time to chat with us today. For our readers who aren't familiar, please tell us a little about Marcaida Kali, and the martial arts training philosophy you pass along to your students.

Doug Marcaida: Marcaida Kali is my personal interpretation of the different Filipino Martial Arts systems I trained in. It is a weapons-based art that develops the use of tools as weapons, because in the end, the methodology and training process is to be able to realize and use what is to me the only weapon: your mind.

The philosophy of this art is that “it's not about how many you hurt, but how many you can protect”. Honor and integrity through the practice of the arts. Many times, we get caught up with how bad ass one's martial arts is. Well, these are weapons. We know that there is a body count. Let's not glorify the obvious, but find the responsibility one gets from training, and also seek to develop the good attributes aside from the physical skills and bring back what good qualities martial training develops in a person.

OG: We're excited to check out the new season of Forged in Fire on the History channel. Can you tell us a little about your involvement in the show, and how that started?

DM: I am one of the judges in the show, and I represent the end user of the weapons. In the end, these works of art have to prove to be fully-functional weapons that will have to stand up to a strength and durability, sharpness and kill test. I simply get to test the weapons with the specially-designed tests. Because this is a competition, I have to let the weapons do the work so we can differentiate and pick the best weapon presented.

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OG: What was one of the biggest challenges about being part of a major TV show?

DM: The biggest challenge for me is not being able to go up against a target that fights back to give me a true test of the weapons capabilities, because my expertise is about the use of the weapons in combat. Also, that these are fully functional and sharpened weapons that I do not touch till the actual testing. I don't have time to dial in my strikes or get familiar with the weapon. There is no “do over” aside from testing with a sharp weapon, safety is also important.

This is a competition about weapons forging, and not about me or what I do. But I am blessed to be part of an exciting show that on a personal level has taught me so many things about the weapons I wield. It's almost as if I've come full circle, because now I also understand the creation process and don't limit myself to the design and use of edged weapons.

OG: We're sure there were also many upsides to being on Forged in Fire. How has being on TV positively impacted you and your business?

DM: The biggest upside for me is that I have learned so much about the weapons I train with. From discovering iconic weapons from history to understanding the process of blade making. It has allowed to give a true personal understanding, and in a romantic sense, to be able to see the process where the soul of the blade smith is transferred to the weapon.

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In terms of business, I can't deny the exposure has allowed people to see my craft and what I do when they search deeper into who the judges are. Kali or Filipino Martial Arts are not as exposed as other arts. It's used in many movies like the Bourne series, to Blade and even 300. But in due time with the advent of media and shows like this, it really helps give exposure to my craft.

OG: How did you begin your career as a knife designer?

DM: One of our methodologies of training is to have trainers that match the real knives or weapons you would carry on a regular basis. And in the weapons world, like underwear… you can't only have one. (laughs)

In my training group, we would often discuss the attributes of our tactics and then imagine what kind of knife or weapon would best allow us to execute the desired result or action. This then allowed me to design the blades we use in our group. That's how I got started.

OG: If you could go back in time with the knowledge you have now, would you have approached your knife-designing career differently?

DM: Design wise, no. I'm quite blessed that my journey has been a positive one, even with some ups and downs. But what I would have liked to add is the forging process.

OG: How important are knives in Marcaida Kali? What if your student is without a knife?

DM: Knives are tools. It's the attribute of a tool that has an edge. If you train in our system and understand the process, then you would realize that you are never without a weapon, because you are the weapon. And your environment always provides you with tools.

Doug Marcaida interview 02

The use of tools is important because they are force multipliers in combat. And the true nature of combat is weapons or tools use. Not hand-to-hand combat, as history has shown. There never was a battle or war fought with hand-to-hand combat. Somebody always ruins the party and shows up with a knife. (laughs) But we also know that a knife can be an equalizer—a 7-year-old or 90-year-old can punch and hit, and their age makes a difference in damage. But a knife wielded by someone the same age? Get my point?

What we also teach is that everything has to be wielded by the body. So, we choose something inanimate that doesn't affect the body. It's a risk to make skin-to-skin contact. Our hands are for loving, and an inanimate object never complains when it hits or gets hit. Our training uses the same moves with or without a tool. We call these physical weapons. But once again we go for the choice that gives us maximum effect for the least effort or risk. In survival, it's about making the best choices that give you the highest percentage of success.

OFFGRIDweb Exclusive Questions

OG: Do you carry a knife every day? If so, please tell us about the knife you have with you today, and the features that made you choose it as part of your EDC.

DM: My EDC varies, depending on what I feel like carrying or what matches my shoes. Today it might be the DART knife, but for more rugged use I have designed the DART XT, which is coming out in March. It's based on the Direct Action Response theory for use. It has to have the ability to open as it deploys. It has to have the ability for retention, which is a ring. It can be used for impact if not deployed, and straight bladed for EDC use.

Doug Marcaida interview 06

On another design venture, I have a collaboration with another designer Bastien Bastinelli with new knives that tell stories. The Le Piquer or scalpel shiv, the fast-opening folder we call the Mako, and a blade called the Contrador. Watch for it.

Just as times change, so do the designs of knives and tactics. I always like to engage my thoughts, and designing knives and their uses is my creative process that keeps my passion for what I do active and ever-evolving. And yes, there is another project that will reflect this. Just like my videos show the constant movement and flow, so goes the constant movement and ideas in my head. I know, it's too much coffee and energy drinks.

OG: What other essential tools does your EDC usually incorporate?

DM: The ability to cut, deploy quickly, ease of carry and concealment if need be, retention, and to have an option to use as an impact weapon.

OG: In previous OFFGRID Web posts, we have mentioned the potential dangers of attempting to fend off a knife attack while unarmed. What would you advise a reader to do if an attacker draws a knife, and the reader is unarmed?

DM: If you have time to think and react, then you have time to run. But if you have time to pick anything up, or use your environment, do so. Never stay in one place. Always move. For knives to hit their mark you need close distance. A moving target is hard to hit. A target that moves and hits back is the kind of target you want to be. So, learn how to attack. Learn to make offense your defense. If you are faced with no other choice, then you fight a knife. You don't defend against it. That requires training. Be vigilant about your own safety. Study something.

Doug Marcaida interview 07

Doug has trained civilians, military members, and law enforcement officers around the world.

OG: On the other hand, what would you say about a reader drawing a knife to defend themselves against an unarmed attacker, or a group of attackers?

DM: In the eyes of the law, you can only do what is required to keep you safe or defuse the situation of danger. The one-upmanship may only apply to military or law enforcement, not civilians. Like I said, if you have the time to draw a knife from a concealed carry, did you have the time to run? Is your choice of drawing a knife against an unarmed attacker going to be justified in a court of law? The one thing based on your question says “unarmed ATTACKER”. There are laws that protect you and allow you protect yourself with lethal force if your life is in danger. Survive, but be smart. Make the right choices. 9 times out of 10, you probably could have gone less-than-lethal and de-escalated the situation.


But wait, there's more! Click here to read additional questions and answers from our interview with Doug Marcaida on RECOILweb.

To learn more about Doug Marcaida and Marcaida Kali martial arts techniques, visit DougMarcaida.com.


Knife Steel Comparison Guide

You've probably realized it by now: we're pretty passionate about knives. It's bordering on all-out obsession. In our defense, a good knife is extremely important to any survivalist, no matter the environment. Your knife is your shelter construction tool, your kindling-gathering implement, your cooking utensil, and even your self-defense weapon.

Choosing a good knife matters, and that's why we talk about it as often as we do.

Tools for Survival - Knife

The TOPS Anaconda 7B is constructed of ultra-tough 1095 carbon steel.

So, how do you choose the right knife? Well, there are a lot of factors to consider, like size, shape, weight, folding or fixed blade, additional features, and cost. However, there's one factor that might just top all the others: the steel. After all, a knife is essentially just a sharpened hunk of steel with a handle, so its molecular composition changes everything.

Knife steel comparison 02

Vanadium (seen here in pure form) is added to many premium steels to improve wear resistance. Photo: Wikipedia

Trust us, analyzing knife steel is a deep rabbit hole. If you read enough about the metallurgy process, you'll feel like you need a degree in Materials Engineering to understand it all. Fortunately for us, there are some tools online that make knife steel comparison much easier.

Knife steel comparison 03

A chart from Knife Informer (formerly Best Pocket Knife Today) comparing common blade steel types.

For a good overall introduction, we'd suggest you read the Essential Guide to Knife Steel from Knife Informer. It covers the five key properties of knives:

  1. Hardness
  2. Toughness
  3. Wear Resistance
  4. Corrosion Resistance
  5. Edge Retention
ZT 0630 knife review 02

The Zero Tolerance 0630 uses high-end S35VN steel, but it comes at a premium price.

The guide also covers the differences between tool steel, carbon steel, and stainless. Then, it gives brief introductions to some of the most common knife steels, and their strengths and weaknesses.

Keep in mind that the guide's “Ultra Premium”, “Mid-Range”, and “Low-End” labels are a subjective touch. It refers to 1095 carbon steel as “Lower Mid-Range”, but also mentions that its extreme toughness and ease of sharpening makes it one of the best choices for a fixed-blade survival knife. So, don't rule out a knife based on that metric.

benchmade-knife-co-916-triage-blade

The Benchmade Triage uses Bohler N680, which features extreme corrosion resistance.

For a more in-depth look at knife steel composition, check out Knife Informer's excellent Knife Steel Composition Chart. It breaks down the elemental composition used in each type of steel, for those who want to dive deeper into the technical side.

No matter what steel you choose, do your research beforehand. Otherwise, you might end up with an expensive, dull paperweight.

Special thanks to reader Sean H. for the tip about the Steel Composition Chart.


Steel Will Knives Apostate

New-York-based premium blade manufacturer Steel Will Knives has released a new folding knife design, and it certainly caught our eye. It's called the Apostate, and the company claims it offers excellent performance and materials not typically found in its sub-$200 price range.

Steel will knives apostate 02

The Apostate 1108 features a drop point blade, which is best for slicing cuts.

Specifically, the Apostate is offered for $175. So, what do you get for that chunk of change? Quite a bit, actually. It features a 4.1-inch S35VN powered steel blade, coated in a wear-resistant dark grey finish. We've taken a liking to S35VN lately, as we've found it can maintain a razor-sharp edge, and it resists the microscopic chips other steels (like S30V) can be prone to.

Steel will knives apostate 01

The 5.5-inch handle is composed of two materials: titanium with an integrated frame lock on one side, and textured G10 scale on the other side. This construction allows it to maintain a relatively light 6.3oz weight.

Steel will knives apostate 03

The Apostate 1113 features a tanto blade, superior for piercing.

The Apostate also implements a ceramic ball bearing pivot, and is said to open smoothly with one finger. Prospective buyers can choose from either a drop point (Model 1108) or tanto (Model 1113) blade shape.

For more information on the new Steel Will Knives Apostate folder, check out SteelWillKnives.com.


“An Ax to Grind” PDF Guide

For anyone who needs to survive in the great outdoors, a good ax is one of the most important tools to own. It lets you fell trees with minimal effort, and quickly gather the necessary components for campfires and improvised shelters. However, an ax (sometimes spelled “axe”) isn't just a crude wood handle with a sharp metal wedge at the end—there's a lot more to this seemingly simple tool than you might think.

If you'd like to learn more about the long history and design elements of this important chopping tool, the U.S. Forest Service has an excellent resource called An Ax to Grind: A Practical Ax Manual. This 68-page document was developed in 1999 by the United States Department of Agriculture for the Forest Service, and covers some of the following topics:

  • A brief history of the ax, and its evolution in America
  • Types and patterns of axes (and adzes)
  • How to sharpen an ax, and how to hang the head (mount it on the handle)
  • Various examples of using axes
  • Where to buy a good ax
Ax to grind manual 04

How to chop an undercut and felling notch, and safely knock down a large tree.

Trust us, there's a ton of useful info and illustrations in the manual. Even if you only use an ax occasionally, you can learn something from it. We just found out that the phrase “can't get the hang of it” originated from lumberjacks struggling to mount their ax heads correctly—interesting, huh? Well, with this guide, you can get the hang of your ax head.

Ax to grind manual 02

A few of the multitude of different ax head designs, and their associated weights.

Possibly the most useful part of the entire guide is its commentary on ax safety, and how to chop limbs off trees without accidentally removing a chunk of your own limb. It's essential for beginners and experts alike.

Click here to download a free PDF of An Ax to Grind from the U.S. Forestry Service.

If you don't have an ax or plan to own one, do yourself a favor and at least learn to split logs with a knife.


Somnambula: Multifunctional Extreme Clothing

We're always on the lookout for new and innovative survival products, and sometimes we're truly amazed and baffled by what we see. Today is one of those days, because we just found out about “Somnambula”.

Somnambula—appropriately named after somnambulism, the medical term for sleepwalking—is a type of “multifunctional extreme clothing” that can be re-configured into anything from a vest to a sleeping bag. The product was developed by survival instructor Gleb Skorobogatov, who became popular for his Ukrainian-language survival video series Adapter Project (some of which are available with English subtitles).

Somnambula multi functional extreme clothing 4

A photo of Skorobogatov wearing the Somnambula.

The video below was released just a few days ago, as the very first demonstration of the things Somnambula can do:

According to the video description, Somnambula is essentially a tube of stretchy cotton fabric, with a number of strategically-placed zippers. These zippers allow Somnambula to be worn in “about twenty ways” including a vest, coveralls, hoodie, sweater, balaclava, head-to-toe sleeping bag, or even configurations that resemble a kilt.

Somnambula multi functional extreme clothing 2v2

Skorobogatov demonstrating fire-starting techniques in one of his Adapter videos.

From a survival standpoint, it's certainly wise to use gear that can be re-configured for a number of different uses, so we can see the value of this design from that standpoint. Skorobogatov also claims the Somnambula is lightweight, compact, and warm—all good things. However, we'd say his statement that it looks “extraordinary and trendy” might be up for debate.

Somnambula multi functional extreme clothing 3

These images and the video above give us a sneak peek at this creative apparel design, and Skorobogatov plans to unveil more details about it with the launch of a Kickstarter project in the near future. According to one interview, the Somnambula has already been in testing for several years, and has been worn extensively by Skorobogatov's friends in the field.

So, from what you've seen so far, would you be interested in adding a Somnambula to your survival kit? Or is the design a little too “extraordinary” for your tastes?


How to Make a Simple Tin Can Stove

A key tenet of survival is working with limited resources, and making do with what you have or what you can find quickly. In urban scenarios, this may mean scavenging or even dumpster-diving for supplies.

Obviously, unless you're desperate, you probably won't want to eat food directly from a dumpster—but there's another important resource you can find in trash heaps: empty tin cans. One or two of these items can be used to create what's known as a “hobo stove” for heating food or boiling water efficiently.

Tin can stove 02

One man's trash is another man's treasure. Don't be afraid to scavenge to survive.

The hobo tin can stove is about as simple as it gets. Find a large tin can, such as a coffee can or can of beans. If it's not already open, you can remove the top easily in most urban environments with the concrete can opener method. Then…

  • Cut a hole in one side of the can near the bottom. You can use a knife—or better yet, tin snips—to do the cutting. This hole will provide access to add fuel, and also allow oxygen into the stove.
  • Next, poke or drill smaller holes around the top of the can. These will serve as exhaust vents, and you'll want plenty of them so your fire isn't smothered.
  • Optional: poke more air holes around the base of the can. These will provide additional oxygen to keep the fire burning.
  • Insert some tinder (such as char cloth) and kindling, then light it up. Have more sticks on hand to keep the fire going.
  • Set some tent pins or wire mesh on top of the can, to prevent your pot or pan from tipping over or falling in. Start cooking!
Tin can stove 03

To some, a rusty old can is useless garbage, but that's not true for a survivalist.

Here's a video that demonstrates the basic hobo tin can stove. The host uses power tools to cut the fuel hole quickly, but you can easily do it with a knife or tin snips and a little patience.

The one downside to this simple tin can stove is that it creates a lot of smoke, and may give away your position to others nearby. If you want to avoid the smoke, you can modify the design to create what's called a “gasifier stove”. Gasification causes the fuel to burn at a higher temperature, leading to cleaner combustion and less smoke.

To create a gasifier stove, you'll be nesting a small tin can inside a large tin can, and drilling the holes more strategically. Here's a demonstration of how to make a wood gas stove:

Regardless of how far you take this simple design, the fact remains that it uses only a discarded tin can (or two). That means it's easy to create in the field, and even if you can't build a full campfire, you'll be eating hot meals again in no time.


USNG App: Emergency Geo-Location Tool

Let's say you're hiking in a rural area, and you trip and break your ankle. If you can't walk out, you may have to call for help on your cell phone—but how will emergency services locate you?

If you're familiar with cell phone technology, you'd probably answer that the 9-1-1 operator can find your location automatically using the cell phone's built-in GPS chip. However, most people don't know that this location data delivery is currently extremely unreliable. Even the FCC admits that this method of emergency geo-location is “not always specific enough for rescue personnel to deliver assistance to the caller quickly.”

The Problem with Cellular Location Data

According to a recent article in USA Today, the FCC has indicated that cell phone location data can be transmitted to emergency services less than 40% of the time. In fact, the FCC has set a goal to reach 40% location data reliability in 2017, and 80% by 2021.

This means that the 9-1-1 operator will most likely not be able to locate you automatically via GPS, and you may be stranded unless you can explain your location in another way. Sadly, there have been many instances of 9-1-1 callers dying before rescue could arrive, as a result of missing GPS location data.

What About Latitude and Longitude?

USNG App google maps latitude longitude

Latitude and longitude (the light blue numbers above) can be viewed in GPS software like Google Maps.

Tech-savvy smartphone users will likely suggest an alternative method. Assuming you have cell signal, you can use GPS software such as Google Maps to pull up your location in latitude and longitude. While this is a valid method, it poses several problems:

  1. Most map software requires a cellular data connection (such as WiFi, 3G, or 4G LTE) to work properly. In rural areas, you may have enough cellular signal to call 9-1-1, but no reliable data connection to use map software.
  2. Latitude and longitude is a complex system based on degrees. It also has multiple versions, which can include decimals, plus, minus, north, south, east, and west components.
  3. Latitude and longitude requires at least 12 digits to provide location accurate to within 36 feet. It can be difficult to convey all these digits accurately to emergency services.
  4. If even one digit is misheard or transmitted wrong, or if the incorrect version of latitude and longitude is used, rescue teams can be sent tens of miles in the wrong direction.

The U.S. National Grid

USNG App US map

Fortunately, there's a better system available: the United States National Grid. Despite the name stating “United States”, this coordinate system works anywhere on earth.

This system was developed in by the U.S. Federal Geographic Data Committee, and is similar to national grid reference systems used by many other countries. It also bears resemblance to the Military Grid Reference System (MGRS) used extensively by NATO military forces, and as of October 2015, it is now the official location system used by FEMA.

So, how can regular folks like us tap into the power of this new USNG location system? It's easy, thanks to a new tool called the USNG App.

Currently, the USNG App is actually just a web site: USNGApp.org (although a proper downloadable app is in development). The site can be visited from any smartphone, tablet, or other device with internet connection* and a GPS chip. You can try visiting it on your home PC, but since it probably lacks built-in GPS, the location will only be accurate to a several-mile radius.

Why You Should Use the USNG App

USNG App screen

A screenshot of the USNG App web site from a smartphone.

The USNG App has many advantages over latitude and longitude:

  1. Instead of degrees and decimals, coordinates are in meters. This makes the system much easier to understand.
  2. The USNG coordinates can be easily plotted on existing USGS topographical maps and gridded maps using a simple “read right, then up” convention. This makes finding your location on a printed map much easier.
  3. Using 13 simple characters and no decimals, the USNG can provide a full location accurate within 33 feet (10 meters).
  4. For local use, such as a 9-1-1 call, you only need to know 8 characters (in the app: 2 blue numbers with 4 digits each).
  5. For use throughout the entire world, just add the 5 additional characters at the top of the screen (in the app: 2 white numbers and a letter, then 2 more letters).
  6. The USNG App is smart enough to only display valid data. So, if your GPS signal is inaccurate due to tall buildings or other interference, the app will only give your location within 330 feet or 3300 feet, and will show red lines through the inaccurate digits. (With latitude and longitude, the numbers could be wildly inaccurate, and you'd never know it.)
  7. An orange “Status” message at the bottom of the page will show the app's current accuracy and last update time in simple terms.
USNG App inaccurate data

An example of inaccurate USNG data, crossed out automatically by a red line.

How to Interpret USNG Coordinates

USNG App coordinate definitions v2

We'll be looking up these example coordinates on a map below.

Here are the basic steps for interpreting USNG coordinates:
USNG App zone grid1) Use a USNG reference map, such as this one, to find the Grid Zone. These are the first 3 white characters you see at the top of the app. For example, 15T gives us the Minnesota/Wisconsin/Iowa area.

2) Zoom in further on the map, and find the second set of white characters you see in the app, the 100,000 Meter Square Identification. For example, WK gives us an area to the southeast of Saint Paul, MN.

USNG App 100k grid v23) Next, read the Grid Coordinates, which are the two blue numbers within the white square in the USNG App. Remember: “read right, then up”.

4) The first two digits will be on the X (horizontal) axis, so zoom in and look for 55 on the black 1000-meter grid.

5) Then, read up to find the next two digits, 80. At this intersection (aka 5580), you'll be within 1,000 meters of the location.

USNG App 1k grid

6) Zoom in more, and continue to “read right, then up” to find the second set of X,Y coordinates (aka 0639). This is accurate to 10 meters.

USNG App coordinates

For more information on interpreting USNG coordinates, visit the Federal Geographic Data Committee's web site. There's also a free tool called Gmap4, which overlays the USNG on top of Google Maps. Click here to try out Gmap4.

No Internet Connection Required?

Did you notice earlier that we put an asterisk/* next to the phrase “with internet connection”? There's a reason for that. The very best part about the USNG App is that you only need an internet connection the first time you visit the USNGApp.org web site.

After you visit the USNG App site once, the data that makes the tool work is cached (or temporarily stored) in your device's browser. Then, as long as your GPS chip is functional and you don't clear your browser cache, you can open the web page at any time and see your USNG coordinates. No internet connection or cellular data plan required, since everything required to run the tool is stored in your browser's cache.

Don't take our word for it—try it for yourself. Go to USNGApp.org on your smartphone. You may be prompted to allow access to GPS location data, so you'll need to hit “Allow” for the tool to work. Then, close the page, and turn on Airplane Mode to disable your data and WiFi connections. Re-open your browser and go back to the USNG App page. The tool should still work, even without a data connection.

Final Thoughts

Even if you get nothing else from this article, get this: visit USNGApp.org today on your smartphone, and save it as a favorite. You may never end up needing to use the app, but in case you do need it, you'll have quick access to accurate GPS coordinates for emergencies.

Special thanks to our friend and contributor Andy Schrader for telling us to check out the USNG App.


Infographic: Estimate Remaining Daylight

Here's a challenge: right now, try to estimate what time the sun will set this evening within a 15-minute window. Unless you've been paying close attention to previous sunset times, you've been studying an almanac recently, or you cheated and Googled it, you'll probably have a hard time estimating sunset time that accurately.

Well…. actually, that's not necessarily true. There is another way to estimate remaining daylight hours, and it's much more practical than any of the other methods we mentioned above.

Estimate remaining daylight 3

This extremely simple trick uses nothing more than your fingers and the horizon, and it takes mere seconds to do. It's one of those skills that everyone should know about, even if you're not a prepper or survivalist. It's just a handy life skill in general (forgive us).

Here's an illustration of how it's done, via an infographic we found through LifeHacker.

Estimate remaining daylight 2

Simply extend your arm, and align the top of your index finger with the bottom of the sun. Each finger width between the sun and the horizon should provide about 15 minutes of daylight. This lets you figure out how long you have to make camp or gather firewood before sunset.

Of course, like the infographic above mentions, there are a few drawbacks:

  • It's not 100% accurate, hence our use of the word “estimate”. If you have short and stubby T-rex arms, your readings may be thrown off a bit.
  • The accuracy diminishes the closer you get to the north or south pole, since the sun's movement will appear to slow as it nears the horizon. Then again, some polar regions have sunlight for almost 24 hours each day, so you may not have to worry about sunset at all.
  • The accuracy also diminishes the closer you get to the tropics, but in the opposite direction. Near the equator, the sun will set faster than you might estimate using this method.
  • Obstructions near the horizon, such as low-lying clouds, can cause daylight to disappear faster than you might expect.
  • Some residual light will persist as the sun begins to sink behind the horizon.

To improve the accuracy of this method, get out there and try to estimate the remaining daylight where you live. After using this trick a few times, and paying attention to a wristwatch, you'll be able to figure out more accurately how many minutes of light each finger represents in your region.


Falling Injuries & Fatality Rates

Ever stood on top of a precarious ladder, and thought about what would happen if you fell? Or, have you looked over the edge of a building, and wondered if you could survive the drop to the ground?

Falling injuries ladder

These questions (sometimes referred to as “the call of the void”) may seem morbid, but they're a natural part of your brain's inner workings. Also, knowing the answers can help us better deal with life-and-death survival scenarios when height is involved.

This way, rather than wondering about your chances of surviving a jump,  you can make an educated guess about the falling injuries you might endure if you were forced to jump to survive.

Falling injuries cliff

According to the World Health Organization, falls are the second leading cause of accidental deaths worldwide, behind road traffic injuries. Falls cause approximately 424,000 deaths each year, but most falls are not fatal.

One of the easiest ways to understand fall risk is to look at LD50, or distance at which you have a 50% chance of fatal injuries. If you fell from 48 feet (about 4 stories), statistically you have about a 50% chance of survival. At 84 feet (or 7 stories), the mortality rate is 90%, meaning you'd be very unlikely to survive a fall from this height.

Falling injuries rooftop

Despite the statistics, it's still possible to be seriously injured or killed when falling a single story (or...

From a practical standpoint, it may seem unlikely to survive a four-story fall. However, keep in mind that many other factors contribute to these averages, including: how you land, how hard the surface is, and what protective gear you're wearing (if any). There are also extreme outliers, such as one man who fell 18,000 feet from a plane without a functional parachute, and survived the landing with only a sprained leg.

So, now you know that you'll be statistically more likely to survive falls of less than 50 feet. Then again, it's far from a guarantee, and you should never try it unless every other option is more likely to kill you. Don't blame us if you jump off a roof and get hurt, because you're almost guaranteed to get hurt doing so.

Falling injuries skyscraper

What else can you do to reduce your risk if you're forced to jump or fall from a high place in a survival situation? We'll leave you with some quick pointers to remember:

  • Be extremely careful on elevated surfaces with slippery conditions (such as water or ice) or with uneven terrain.
  • Take your time and wear proper footwear, so you don't trip or stumble.
  • If you're forced to jump from a roof to the ground, hang from the ledge by your hands, then let go. This slightly reduces the distance you have to fall, improving your odds of survival.
  • While falling, try to relax your body, and protect your head and neck with your arms.
  • Try to bend your knees and roll forward or onto your side as you land. This will absorb some of the impact.
  • Avoid falling directly onto your back if possible, as this will reduce the risk of spinal injuries.

For more information about common accidents and injuries, check out our article on mountaineering accident statistics.


Ceramic Knives: Would You Carry One?

As survival-minded individuals, it's important that we never become complacent with our gear. Sure, using old-school and traditional tools for survival is a reliable option, but if you're not constantly checking out new alternative technologies, you might be stuck using outdated gear that's less effective.

Ceramic survival knives Stone River

A fixed-blade black Zirconium Oxide ceramic neck knife from Stone River.

That said, we're curious to hear what you think on the topic of ceramic knives. It goes without saying that most of us own at least one fixed-blade or folding knife, and the vast majority of those knives are made of steel. That's the way blades have been forged for centuries, and some might say there's no need to fix what's not broken.

Ceramic survival knives Boker Antigrav

This Boker Antigrav folding knife uses a ceramic blade and carbon fiber scales to tip the scales at only 2.1 oz.

However, modern ceramic knives have come a long way, thanks to prominent manufacturers like Kyocera (from Japan), Boker (from Germany), and Stone River (from the U.S.). They also provide some interesting advantages when compared to ordinary steel knives. Here's a quick list of general pros and cons to summarize ceramic knives:

Ceramic Pros:

  • Excellent edge retention. Ceramic can stay sharp 10 to 12 times longer than conventional steel.
  • Extremely light, about half the weight of a comparable steel knife.
  • More concealable, since they won't be detected by metal detectors (obviously, we strongly advise against doing anything illegal with this knowledge)
  • Non-reactive and less porous, so they will never corrode or retain tastes/odors like some steels can.
Ceramic survival knives Kyocera chef

Kyocera, a leading manufacturer of ceramic kitchen knives, uses a proprietary material called Zirconia Z206.

Ceramic Cons:

  • Potentially brittle, and will shatter instead of denting or bending like steel.
  • Generally more expensive than comparable steel knives.
  • While great for precise slicing, ceramic won't handle hard chopping or cutting against hard surfaces (like bone or glass)
  • When they eventually become dull, these knives are more time-consuming to sharpen.
  • Usually slightly less sharp than a perfectly-sharpened steel blade.

We mentioned in the last point that ceramics are usually very slightly less sharp, but when cared for correctly, they can still be as sharp as a razor. Here's a video that proves it's possible to shave with a freshly-sharpened Kyocera ceramic kitchen knife:

So, we want to hear your thoughts on this cutting-edge blade material (forgive the pun). Answer the poll, and let us know if you'd ever consider a ceramic knife. Feel free to leave a comment at the bottom of this page to explain your choice.