Do not discount the "pretty" rocks found along with gold. The sapphires you see are worth many times more than gold. Sapphire (& Ruby, (corundum), is like garnet, a relatively high specific gravity that will catch in a sluice readily. These gems act as gold, they will drop beh ...more
In this instructional video clip series, our expert will demonstrate a children's science experiment that explains and properly displays the variations on the center of gravity for a particular mass. In the series, the popular science fair and science class demonstration known ...more
Chi running focuses on core muscles, integrating body and mind, and long-term performance to enhance the joy of running. In this tutorial, you will learn how to harness your Chi and improve your running technique and overall fitness. You Will Need • Focus • Technique • Deep ...more
Backpacks are handy for camping, hiking, school and travel, but they can be difficult to pack properly. In this tutorial, learn how to pack your bag so that its light and efficient. You Will Need • A backpack • Items to be packed • Color-coded stuff bags • A survival kit ...more
If you want a challenge, try this at home or anywhere. Learn to spin a book on your finger. This will make you enjoy more of your vacant time. It also helps your balancing skill developed. 1. Get a book. 2. Get your finger to the center of the gravity of the book. 3. Spin the ...more
And then there was light…on your pen. Have a little fun and with a little ingenuity and a couple of matchsticks you can liven up any afternoon by pranking your friends with this magically burning pen. No one will ever ask to borrow your pen again after you pull this hair-rais ...more
Have you been noticing SpaceX and its launches lately? Ever imagined how it would feel to launch your own rocket into the sky? Well, imagine no longer! In this tutorial, you'll learn how to make a simple augmented reality app for iPads and iPhones by using ARKit. Specifically ...more
Researchers have developed a new method that harnesses the power of augmented reality to detect a patient's heart rate using a Microsoft HoloLens and computer vision. Developed by Dr. Christophe Hurter, a professor at French Civil Aviation University, and Microsoft researcher ...more
What a week for iPhone rumors. Monday saw an intriguing photo leak on Reddit of what could be the final designs for the iPhone 8, 7S, and 7S Plus (highly suspect, of course). Today continues the intrigue — iPhone assembler Wistron told reporters in Taipei that Apple's newest ...more
One of the truly beautiful things about the HoloLens is its completely untethered, the-world-is-your-oyster freedom. This, paired with the ability to view your real surroundings while wearing the device, allows for some incredibly interesting uses. One particular use is trigge ...more
Here you're going to learn how to make the the Nakamura Lock paper airplane which is is named after its creator, Eiji Nakamura, an incredible Origami artist. This plane flies exceptionally well which I'm sure has to do with its great forward leaning center of gravity. It also ...more
These days, using the power button to lock your Android seems a little old-fashioned. Thanks to third-party apps and mods, you could seamlessly lock your device using a double-tap, a swipe, and even gravity, or you could just throw it in your pocket, all of which help prevent ...more
We've all played with bubbles as kids, but I think most would agree that they're not exactly the most functional of objects. An international team of researchers made up of Yoichi Ochiai, Alexis Oyama and Keisuke Toyoshima wants to change that. They've figured out how to proje ...more
Just a normal day in the life of the Dunn family. Seasoned stunt professionals Jim and Celia Dunn have appeared in Hollywood films such as Poltergeist , Scary Movie, X-Men II, Shanghi Noon and Jumangi. Their children, Connor, 15, Ali, 11, and Austin, 9, boast impressive IMDB ...more
This past spring, British TV show Fifth Gear aired stuntman Steve Truglia performing a Hot Wheels inspired feat. The daredevil completed the world's largest 360° loop-the-loop. Death was a definite risk. Says Daily Mail, "...John Nolan, producer of Fifth Gear, admitted that ...more
Eat your heart out, Joey Chestnut. There's a new super-speed-eater in town, and she means business. 45-year-old Hatsuyo Sugawara downed an incredible number of 399 bowls of soba noodles in just ten minutes at the annual All-Japan Wanko Soba Eating Championship this past Sunda ...more
Thanks to the squirrel suit, AKA wingsuit, man can move from land to air effortlessly. Matchstick's jumpers reach terminal velocity within 15 seconds, flying at 120 mph. Matchstick Films had one objective when they shot this film. Ski off cliffs without thinking about the lan ...more
The human flag is one of the hardest tricks in all of gymnastics, parkour, freerunning and general playground acrobatics. Key to parkour is its underground cache. Born by rebels, it's an exhibition of how well one could get (creatively) through an urban environment if they we ...more
We wear bras every day, and we all assume that we are wearing them properly, but how do we know? In this tutorial, learn exactly how to put on and wear a bra so that it looks great and feels comfortable. With a few simple steps, you will be on your way to being an expert. Ste ...more
PopSci has compiled an amazing list of 30 college labs that would tempt anybody to re-enroll. If you know any high school juniors or prospective grad students, pass this along. They just might reconsider their initial choices. 30 courses are pictured below, click through to P ...more
Learn how to drop in on a quarter-pipe. Dropping in on a quarter-pipe or other vertical ramp is something to try after you have been skateboarding for at least a few months. You Will Need * A skateboard * A helmet and protective pads * A pair of skateboard or athletic shoes ...more
Get ready to defy the laws of gravity with this really cool magic trick. Just make sure your glass is empty when you perform this one! You will need one plastic tumbler or bottle, one opaque plate, two playing cards, scotch tape, and scissors. Sometimes we use materials that r ...more
Build wooden horses for the boys to joust on. The horses are built from the shoulder up so they can be ridden low rider style, (and a fall won't totally take out a cast member. But if you feel like making scale wooden horses, be my guest.). The horses must have some sort of ha ...more
The Google Now gesture included in the Google Now Launcher and on Nexus devices isn't something I regularly utilize, and you might not either. There is a way to disable it, which is a good idea if you were executing it accidentally, but what's even better than disabling it? Re ...more
Presentational video for our DIY Camera Crane project. Video: . Me and my friend built this crane couple of months ago in our garage using only ordinary materials from hardware shop. The overall cost of the crane was about 200$, when cranes of the same weight capacity may cost ...more
Portal has been one of the most critically acclaimed and universally loved games of the last few years, and there's plenty of fan art to prove it. From building a Portal gun, to a gravity defying Companion Cube, and even installing Portal onto a graphing calculator, fans have ...more
So, the in-person conversations between you and your friends has slowed down to a near halt, thanks to everyone's obsession with texting, Facebook, and over-uploading pics to Instagram—socializing at its best. It could also be that you're just not interesting enough anymore in ...more
Apple Watch owners know there's a built-in way to remove water from the device's speaker. However, even though modern iPhones are IP67 and IP68 water resistant, there's no official way to deal with water-clogged speakers that can muffle audio and cause prolonged damage if not ...more
My first attempt at a helmet cam, yielded ok results, but I wanted something even better. The downside to all of this was cost, but it is very close to what I want now. Yes the camera is upside down, and yes there's a solid piece of fabric covering the view. Read on to find o ...more
GravityBox is a name that many know as the module to rule them all when it comes to customizing your Android device. Ask any of the longtime modding pros, and they'll tell you about the good old days during the Xposed era. The community was booming and full of great ideas, and ...more
The Galaxy S9's Super Slow-mo feature comes packed with tools that help you tweak your slow motion clips like a pro. Among these is the ability to convert your slow motion videos into GIFs with a user-friendly interface. As a result, it's incredibly easy to go from recording t ...more
In the first part of this series, we looked at the surface detection that is provided by the ARKit. We looked at how it worked and covered some of the tools that could help us determine what is not working; when it doesn't. Now let's take this to the next step. Before we can ...more
Amazon just unveiled the Kindle Oasis, the latest model in its popular line of e-readers. There are a couple of nice new features, but it's pretty hard to see how any of them justify the whopping $290 price tag (or $310 if you don't want ads littering your screen). Unlike pre ...more
Salad spinners are one of the more divisive kitchen tools out there. On one hand, they're incredibly easy, efficient, and useful. On the other hand, they're a single-use tool that takes up a lot of space. As much as I appreciate the usefulness of salad spinners, I simply don' ...more
As we go about our daily grind, our smartphones and tablets take a silent beating. Dirt, dust, oil, and grime that our hands have picked up immediately gets transferred over to our shiny pocket-sized computers every time we check the time or look for new notifications, and ove ...more
Sometimes, you just don't want to hit the Power button to turn your screen off. In the current age of touchscreens, you've got to wonder why we even have physical keys anymore. There are actually plenty alternatives to using the Power button on your Samsung Galaxy S3. You cou ...more
Thanks to the PlayStation 3 and Xbox 360, video games are constantly evolving to higher degrees of sophistication, with complex graphics, lifelike resemblances and storylines that create exciting experiences that relieve the tediousness of our everyday lives. It's a little di ...more
If you think you can get all 242 stars in Super Mario Galaxy 2 on your own, you've got another think coming. It's a lot harder than it looks. Sure, getting those first 120 normal stars seem like an easy enough task, but finding all of the remaining 120 green stars is the hard ...more
No one likes having their home invaded, and sometimes you just don't want to have to wait those precious few seconds for someone or something to drown, suffocate, or burn up. This trap utilizes gravity to destroy anyone who may want to pillage your home, be they monster or pla ...more
The United Kingdom has long been known as an international hub of yellow tabloid journalism. The News Of The World, one of the nation's largest tabloids, is famously in court right now because of the deplorable methods it used to acquire salacious information about interesting ...more
In what's becoming something of a regular occurrence, Magic Leap has yet another internal, unforced error on its hands. Thankfully, this time it's not about legal skirmishes or theft, but a rather unusual break from company protocol that has been quickly swept under the rug. ...more
Wherever there are people, the party is sure to follow. Well, a party of microbes, at least. That is what scientists at NASA's Jet Propulsion Laboratory have found after a 30-day microbial observation of the inflatable lunar/Mars analog habitat (IMAH). What is an "analog habi ...more
There are many reasons to root Android, but for me, the most important one is to have the Xposed Framework. Xposed gives you access to hundreds of modules, which take away the need to manually modify core system files to add new features and functionality to your Android devic ...more
Having a dust- and water-resistant phone is truly useful, but it comes with a price. In order to achieve this functionality, Samsung had to literally plug up any holes in the Galaxy S5, and this included the charging port. The small cover that keeps dust and water at bay, and ...more
Need to remove wrinkles from your shirt but don't want to bust out the iron and ironing board (or don't even have one)? Well, with a little bit of do-it-yourself ingenuity, you can "iron out" that wrinkly top in no time. For example, if you need to hop into the shower, simply ...more
It's December 11th. Only 14 days left until Christmas. But today is something more than just a countdown date for the quintessential holiday—it's Angry Birds Day, which marks the one-year anniversary of the popular mobile video game. Today, Angry Birds fans around the world w ...more
This video guide for Super Mario Galaxy 2 is from NextGenWalkthroughs and focuses on obtaining all 120 of the green stars. So, pull out your Nintendo Wii and get ready to collect all of those green stars! This is just part of the 242 stars in the game. But wait… make sure you ...more
If you thought the last post on Two Circle Wobblers was wild, then wait until you see what happens when you build wobblers out of two half circles or two ellipses. In both of these cases, the center of gravity still remains constant in the vertical direction, allowing them to ...more
As NASA nears the launch of another mission to the Moon in 2024, and a subsequent mission to Mars in the 2030s, augmented reality is increasingly being woven into the normal space operations to test various capabilities. The latest example comes via the current International ...more
The Moto G7 Power is a phone that screams battery life. From its display resolution to the massive battery, it was designed for those who hate to recharge each night. But unlike other battery-focused smartphones, it comes at a price almost anyone can afford. Lenovo, Motorola' ...more
The newly-announced Moto G7 Play offers some of the same upgrades as its sibling, the Moto G7, but at a much lower price. The upgrades are pretty significant when compared to last year's Moto G6 Play, taking this phone from the "only if you're on a strict budget" category into ...more
Think of the coolest, most unique way to create art that you can. Got it? Now think about creating that art out of living things. The American Society For Microbiology (ASM) holds an annual art contest, but it's no ordinary art they look for. The ASM looks for agar art, which ...more
We already know that Samsung's Galaxy S7 is one of the most versatile smartphones ever made, complete with edge-to-edge displays, water resistance, and a huge battery. But what's versatility without durability? How much punishment can the Galaxy S7 take? Let's play a game of S ...more
Super Mario is back in another fun-filled Galaxy game! The highly acclaimed game, Super Mario Galaxy 2 for the Nintendo Wii, was released on May 23rd, 2010. And believe it or not, but it has already reached 3rd place (as of 07/22/10) at GameRankings for the best reviewed games ...more
Not every DIY project is as executable as, say, making a potato gun. Occasionally, we observe a quixotic project that is just plain wonderful. Consider rich guy Philip Anschutz and his eponymous Anschutz Entertainment Group (AEG). His ambition to bring an NFL team to Los Angel ...more
In America, football has become religion. And that religion has blossomed into an unstoppable juggernaut, which has rocked the very foundations of both television and business. In an era where fragmentation has savaged traditional network television, the NFL's Nielsen ratings ...more
After months of back and forth, ZTE is finally making their return to the United States. The last phone the Chinese company released here was the Axon 7 Pro, a low priced flagship phone that competed well against the OnePlus 3 and 3T at the time. Its successor is the Axon 10 P ...more
In 2019, Sony is mixing up its design, attempting to stand out among the sea of familiarity. Instead of emulating Samsung with punch hole cameras, they decided to target a rare section of the market, content consumers. There's the Xperia 1 for those who want the best, and the ...more
Similar to last year, LG is mixing up its releases. Instead of the G series in the first half of the year and the V series in the second half, LG is releasing both heavy hitters together. However, unlike last year, this is a true upgrade from its predecessor, the LG V50 ThinQ ...more
After months of waiting, it looks like HMD has finally answered the call. Nokia's parent company is finally releasing a true flagship phone — one that isn't just an enhanced version of a previous phone and actually brings something new to the table. That phone is the Nokia 9 P ...more