Simon Zupan

23 Flips | 1 Magazine | 7 Likes | @SimonZupan | Keep up with Simon Zupan on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Simon Zupan”

How To Build A Flashlight That Runs On Dead Batteries

The dead shall shine again<p>Don’t throw out that seemingly lifeless battery—it’s not dead yet. A brand-new alkaline battery cell has an electric potential of about 1.5 volts, which drops as the juice runs out. The voltage eventually becomes too low to power most devices, but there’s still energy …

How to Crack a Safe

If you've forgotten the combination to your safe, resorting to a professional locksmith could cost a lot of money, while forcing your way through …

AdWords

Watch a Master Bladesmith Make a Kitchen Knife Out of Meteorites

Bob Kramer's knives are out of this world<p>Talk about an in-demand craftsman: After knifemaker Bob Kramer was first featured in <i>Saveur Magazine</i> in the …

Meteorites

De Markis Is A Camper That Unfolds Like An Accordion

Campers are, for many, generally associated with cramped, confined, uncomfortable quarters. It’s not entirely untrue, either; you’ve got to cram a …

New Infographic and Projects to Keep Your Energy Bills Out of Hot Water

<i>Editor's Note: The infographic has been updated to include electricity as a possible fuel source for heat pump water heaters.</i><p>We are all guilty of …

Deleted

Fume Extractor<p>High Velocity Vortex Cannon<p>DoggoBot Version 1<p>3D CAM and CNC Class<p>Can't believe there are still people that buy in to John Hutchinson's …

Flir One review: the thermal camera you need to see through the darkness

Flir One, a thermal imaging camera attachment to your iPhone or Android smartphone, is designed to let you peer deep into impenetrable places like walls and through the pitch black darkness of night. For this utilitarian purpose alone, contractors, sportspeople and homeowners will likely put the …

Did you solve it? Are you smarter than a Japanese schoolchild?

Earlier today I set four Area Maze puzzles. Here’s how you solve them.<p>Area Maze 1<p>Draw this:<p>Line x is (38 + 39)/7 = 77/7 = 11cm<br>• Line y is 11 - 4 = 7cm<br>• Line z = 7 + 3 = 10cm<br>• The missing value is therefore (10 x 6) - 40cm2 = 20cm2<p>Area Maze 2<p>Draw this:<p>First we can deduce that the length x is 5cm, since 4 …

Puzzles

Knife Blades: Common Steels Explained

Knife-makers use dozens of steel types to create knife blades. Which one is right for you? We look at 10 common steels used by popular knife brands …

Best Combat Knives on the Market: How to Choose the Best One

Sometimes, either in the heat of battle or in a survival situation, knives are the last line of self-defense. They serve many different purposes, …

Vantage Motorhomes Factory Tour

ESEE Candiru Small Outdoor EDC Neck Knife Review

Traditionally speaking, ESEE Knives have been something like the voice of absolute reason in a market inundated with gimmicks and pseudo tactical …

Fish

Archive Gallery: 137 Years of Robotic Fascination

The mailmobile, the cigarette-smoking mechanical man, Al Capone's would-be robot army and more retro robots from PopSci's archives<p>We've all heard of Roombas, robot submarines, and creepy humanoid robots, but have you ever heard of Elektro, the cigarette-smoking robot from the 1939 World's Fair, or …

First In Fish: 'Fully Warmblooded' Moonfish Prowls The Deep Seas

Over decades of studying the oceans' fishes, some species have been found to have partial warmbloodedness. But scientists say the opah, or moonfish, circulates heated blood — and puts it to a competitive advantage.<p>"Nature has a way of surprising us with clever strategies where you least expect …

These bladeless wind turbines shake to generate electricity

Farms dotted with the gigantic spinning blades of wind turbines have become a standard sight on long-distance road trips, but what if there was another way to capture energy from the wind? A startup out of Spain is working on that very idea. The company's called Vortex Bladeless, and its turbines …

What Made the Y Chromosome So Tiny?

The Y chromosome, a chunk of genetic code that is unique to male mammals, isn’t just physically smaller than the X. It also contains far fewer genes. …

Genetics

BlazePress — How manual transmission works.

This secret trick is the fastest way to shut down your Windows PC

The procedure for shutting down a Windows computer varies depending on which version of the operating system you use. Regardless of OS version, …

Spec-heavy Le Superphone coming to the US from China's Letv

The hardware specs for Le Superphone sound very impressive on paper, and could offer an alternative to devices like the Samsung Galaxy S6 if Letv …

The 2015 Way to Travel on the Cheap

You'll be a jetsetter in no time.<p>The digital age is bittersweet for those of us with wanderlust. On one hand, your Instagram feed is filled with idyllic snaps from exotic locales that are merely pipe dreams due to your lack of funds. On the other, you have a million sites and apps at your finger …

11 Survival Tools You Need To Not Die Alone And Scared

Outside is free, and fortunately, you don't usually get what you pay for. Occasionally, however, you get stuck with a bad case of hypothermia, miles …

Bear Grylls

Sustainable home can be built in four days using only a screwdriver

Pop-Up House measures a total of 150 sq m (1,614 sq ft), and the interior features a large combined open space that contains kitchen, dining and …