# Understand Equivalent

### How To : Understand equivalent fractions

In this video the instructor teaches about equivalent fractions. When given a problem to determine if two fractions are equivalent fractions the first thing to do is write them in the lowest terms. A fraction is said to be in the lowest terms if the greatest common divisor of ...more

### How To : Understand and determine equivalent fractions

In this video, we learn how to understand and determine equivalent fractions. If you have an equation with an equivalent fraction, you will first multiply the first numerator by the second denominator. Then, you will divide this answer by the denominator of the first fraction. ...more

### How To : Find equivalent fractions

In this video the tutor explains about the concept of Equivalent Fractions and how to find them. She states that equivalent fractions are fractions with same value. She explains this with an example saying that a fraction can have many forms in their unreduced states and all t ...more

### How To : Write equivalent fractions

In this tutorial, we learn how to write equivalent fractions. If you have a negative in front of the fraction, it's the same as writing the negative on the numerator or the denominator. If we would have a negative on the top and on the bottom, this would cancel both out to cre ...more

### News : Shibumi

In the dojo, what ISN’T said is often as important as what IS said. To most of us who’ve been raised in the USA, the reticence we encounter in the dojo can be off-putting. American society is very “content” oriented. Our legal contracts, for instance, run for pages and pages. ...more

### Hacker Fundamentals : A Gentle Introduction to How IP Addresses Work

Imagine you're in Paris and you need to get to Versailles. Looking around for directions, you come to a cold realization—you do not speak a lick of French! How are you going to get to Versailles and what happens if there is a detour? It will be a difficult struggle, and you'd ...more

### How To : Make a Programmable Piano in Minecraft

There are many impressive accomplishments in Minecraft, too many to name in fact. Sprawling builds, complex machines, and massive servers are the hallmark of Minecraft and things keep getting bigger and better. No one doubts the epic scale Minecraft has reached, but every once ...more

### News : The Ultimate SCRABBLE Word List Resource

To some, SCRABBLE is just a board game to play during family game night or during a casual get-together. Others think of SCRABBLE as a mere hobby. But with any activity, there will always be fanatics—the ones who would rather sell their soul than stop—the ones with a constant ...more

### News : Scrabble Dumbs Down Its Game with 3,000 New Words

Remember the firestorm SCRABBLE Trickster caused nine months ago? SCRABBLE enthusiasts across the world were outraged when Mattel created a game that would allow proper nouns to be acceptable words of play. Essentially, it was a dumbed down, youth-friendly version of the class ...more

### News : Secure Your Wireless Network from Pillage and Plunder in 8 Easy Steps

Wireless networks. Nowadays, everyone uses 'em, but most don't secure 'em. On average, I can drive up and down any block in my city and find at least one or two open or semi-open networks on any given day. With some changed MAC addresses for good measure, an attacker can use y ...more

### News : Inside Bitcoin - Part 2 - Cryptographic Hashes

If you haven't read the last article, feel free to stop by and give it a read, but abstaining from reading it will not, for the most part, be detrimental to your understanding. Today we are going to explore some of the inner workings of Bitcoin. As we previously learned in th ...more

### Binance 101 : Fees & Fine Print You Need to Know Before Trading Bitcoins & Other Cryptocurrencies

In just a few months, Binance has experienced explosive growth, overtaking its rivals to rank among the top three cryptocurrency exchanges in the world by trading volume. Without a doubt, Binance is now among the best sites for trading alt-coins like Ripple (XRP), Stellar (XLM ...more

### News : We've Finally Figured Out Why Some Mushrooms Glow

Bioluminescence — the ability of an organism to produce and emit light — is nature's light show. Plants, insects, fish, and bacteria do it, and scientists understand how. Until now, though, we didn't know how fungi glow. Now, thanks to research led by Zinaida Kaskova in the I ...more

### News : 12 Features & Changes for Apple Maps in iOS 13

Apple Maps has had a rough lifecycle. After completely dropping the ball during its inception, Apple has been slowly improving its usability and feature set. After six and a half years, users still prefer third-party apps in iOS 12 over Apple Maps, with Google Maps stealing a ...more

### News : Change of Tune? Not Everyone Needs to Finish That Course of Antibiotics

After years of telling patients to finish any prescribed course of antibiotics completely, a group of researchers in the UK say it is no longer necessary, and could even be harmful if we want to preserve the antibiotics we can still use. You read correctly, in an analysis pub ...more

### News : Better Spatial Maps Will Make Mixed Reality Great

A group of researchers from Stanford University and Princeton University has put together the largest RGB-D video dataset to date with over 1,500 scans of over 700 different locations across the world, for a total of 2.5 million views. This dataset, called ScanNet, has been s ...more

### How To : 7 Things Bakers Know That You Don't

There's a common saying that separates cooks from bakers: baking is a science, while cooking is an art. When baking, one little misstep can alter the texture, taste, and consistency of any recipe. Yet it doesn't have to be a scary science—forget your not-so-happy high school ...more

### How To : Security-Oriented C Tutorial 0x10 - Pointers and Addresses

In previous tutorials we have encountered these things called pointers and addresses but we still don't know what they really are. Let's learn a bit more to clear things up. What Are Pointers and Addresses? A pointer is a type of variable which as been combined with the dere ...more

### Hack Like a Pro : The Basics of the Hexadecimal System

Welcome back, my novice hackers! It has become clear from some of your questions that quite a few of you are unfamiliar with the hexadecimal system, or simply, hex. The hexadecimal system is used throughout computing and if you have never studied this Base16 numering system, ...more

### How to Hack Wi-Fi : Getting Started with Terms & Technologies

Welcome back, my hacker trainees! A score of my readers have been begging for tutorials on how to hack Wi-Fi, so with this article, I'm initiating a new series dedicated to Wi-Fi hacks. This will probably be around 6-9 articles, starting with the basics of the technologies. I ...more

### Market Reality : Level Ex Closes \$11 Million in Financing, While Gaze Coin Seeks \$12 Million through ICO

According to Digi-Capital, investors poured \$1.8 billion into augmented and virtual reality companies over the last 12 months, including \$300 million in the third quarter. These investments are not made without a means to monetize products and services. One way AR/VR earns re ...more

### News : LaCroix's Sparkling Water Is Everywhere & That's Bull [Debate]

I truly don't understand why anyone would pay \$10.99 for a case of carbonated water just to feel like a Midwest mom on a diet. Every time I talk about LaCroix, pronounced La-CROY (rhymes with enjoy), it's like I take all the money I spent on my French major and light it on fir ...more

### How To : Linux Basics for the Aspiring Hacker: Archiving & Compressing Files

When using Linux, we often need to install new software, a script, or numerous large files. To make things easier on us, these files are usually compressed and combined together into a single file with a .tar extension, which makes them easier to download, since it's one small ...more

### How to Hack Wi-Fi : Cracking WPA2 Passwords Using the New PMKID Hashcat Attack

Cracking the password for WPA2 networks has been roughly the same for many years, but a new attack requires less interaction and information than previous techniques and has the added advantage of being able to target access points with no one connected. This new attack agains ...more

### How to Beat Dehydration : Bye-Bye Gatorade, Hello Banana Bag

The war on dehydration is a commercially burgeoning marketplace. An increasingly sophisticated consumer population hoping to conquer everything from 26-mile marathons to vodka shots is deconstructing every functional remedy in the fight to quell the effects of severe dehydrati ...more

### News : Frustrated by Acne? New Research Shows Skin Microbiome Makes a Difference

The squiggly guys in this article's cover image are Propionibacterium acnes. These bacteria live in low-oxygen conditions at the base of hair follicles all over your body. They mind their own business, eating cellular debris and sebum, the oily stuff secreted by sebaceous glan ...more

### News : 2016 Disengagement Reports Show Waymo Absolutely Crushing the Competition on Every Single Metric

Disengagement report numbers for self-driving car testing in 2016 on public roads in California were just released, and the biggest point we can make about them is that Waymo is very far ahead of their competitors in almost every metric. The California Autonomous Vehicles Tes ...more

### How To : The Easiest "One-Click" Root Method for Your Samsung Galaxy S3

Rooting an Android device used to be a nightmarish labyrinth of .zip files and command prompts, confusing seasoned modding veterans and newbies alike. Thankfully, the process has gotten simpler over the years, with various "one-click" rooting tool kits surfacing and working fo ...more

### News : What Is Augmented Reality?

Apple CEO Tim Cook has said that augmented reality (or, AR for short) will "change everything." But what, exactly, is augmented reality? Generally, augmented reality refers to the process of presenting virtual objects and imagery — usually through a wearable lens or external ...more

### How To : Inject Coinhive Miners into Public Wi-Fi Hotspots

Coinhive, a JavaScript cryptocurrency miner, was reportedly discovered on the BlackBerry Mobile website. It was placed there by hackers who exploited a vulnerability in the site's e-commerce software that allowed them to anonymously mine cryptocurrency every time the website w ...more

### Understanding OLED : The Difference Between LG's POLED & Samsung's AMOLED Screens

With the recent launch of the LG V30 and the Pixel 2 XL, LG has reintroduced the world to POLED. This display tech was showcased at CES 2015 and billed as a rival to Samsung's AMOLED displays, then promptly disappeared from the market for two years. But now that two of the big ...more

### How To : Binary Patching. The Brute Force of Reverse Engineering with IDA and Hopper (And a Hex Editor).

What if the code you are trying to reverse engineer is obfuscated or somehow corrupted? What if no way is left? Here comes what I like to call (wrongly and ironically) the "brute force of reverse engineering". Before I even start, as always, I wanted to apologize for any uncl ...more

### News : After Nearly a Decade of AWE, Founder Ori Inbar Unpacks the Past, Present, & Future of Augmented Reality

In just a few weeks, on May 29, the annual AWE (Augmented World Expo) conference will take place once again in Silicon Valley (Santa Clara, California, to be exact). And while everyone will be on the lookout for the next big thing in augmented reality coming from major player ...more

### How To : Program a \$6 NodeMCU to Detect Wi-Fi Jamming Attacks in the Arduino IDE

Hackers and makers are often grouped under the same label. While hackers draw on computer science skills to write programs and find bugs, makers use electrical engineering to create hardware prototypes from microprocessor boards like the Arduino. We'll exercise both sets of sk ...more

### How To : Hack 200 Online User Accounts in Less Than 2 Hours (From Sites Like Twitter, Reddit & Microsoft)

Leaked databases get passed around the internet and no one seems to notice. We've become desensitized to the data breaches that occur on a daily basis because it happens so frequently. Join me as I illustrate why reusing passwords across multiple websites is a truly awful prac ...more

### Advanced Exploitation : How to Find & Write a Buffer Overflow Exploit for a Network Service

While our time with the Protostar VM from Exploit Exercises was lovely, we must move on to bigger things and harder challenges. Exploit Exercises' Fusion VM offers some more challenging binary exploitation levels for us to tackle. The biggest change is that these levels are al ...more

### How to Hack Wi-Fi : Hunting Down & Cracking WEP Networks

While the security behind WEP networks was broken in 2005, modern tools have made cracking them incredibly simple. In densely populated areas, WEP networks can be found in surprising and important places to this day, and they can be cracked in a matter of minutes. We'll show y ...more

### Exploit Development : How to Defeat a Non-Executable Stack with ret2libc

After a long hiatus, we shall once again emerge from the shadowy depths of the internet to build an exploit. This time, we'll be looking at how to defeat a non-executable stack by using the ret2libc technique — a lean, mean, and brilliant way of exploiting a stack overflow vul ...more

### News : How Razer Used IGZO Display Tech to Achieve 120 Hz Refresh Rates

With their first attempt at the mobile market, Razer introduced a device that looks at the smartphone differently. Instead of focusing on minimal bezels or an amazing camera, Razer decided to make a phone for gamers. So how could Razer target the growing mobile gaming market, ...more

### How To : Your Phone's Biggest Security Weakness Is Its Data Connection — Here's How to Lock It Down

After numerous scandals like the Equifax data breach and the 2016 US election, cybersecurity has become a significant issue for Americans. Unfortunately, anytime we use our devices, we're open to a cyber attack — especially when we browse the web. However, there are ways that ...more

Do you take your notes on a word processor while browsing the web? Well, stop. There's an easier, less RAM hungry way to take notes by turning the tab of your web browser into a notepad. Whether it's an email address, a line of code, a new how-to, or an idea you don't want to ...more

### Hack Like a Pro : Linux Basics for the Aspiring Hacker, Part 6 (Networking Basics)

Welcome, my neophyte hackers! The aspiring hacker needs to know a bit of Linux to be successful, and probably most importantly, Linux networking. To fill that knowledge gap, I'm offering this guide on Linux networking basics. I assume that you understand a small amount of net ...more

### How To : Exploring Kali Linux Alternatives: Set Up the Ultimate Beginner Arch Linux Hacking Distro with Manjaro & BlackArch

There's no doubt Kali has established itself as the most popular penetration distribution available. However, just because it's the fan favorite of beginners and security researchers doesn't make it right for everyone. Manjaro Linux is a beginner-friendly Arch-based distributi ...more

### Recon : How to Research a Person or Organization Using the Operative Framework

The Operative Framework is a powerful Python-based open-source intelligence (OSINT) tool that can be used to find domains registered by the same email address, as well as many other investigative functions. This reconnaissance tool provides insight about your target through ex ...more

### News : Bats & Viruses — Friend or Foe?

Tell the truth. The bat picture creeps you out. You are not alone. But in reality, bats truly are some of our best friends. They gobble thousands of disease-spreading bugs a night. But they also carry viruses that can be deadly to humans. So, bats — friend or foe? There are o ...more

### How To : Security-Oriented C Tutorial 0x14 - Format String Vulnerability Part I: Buffer Overflow's Nasty Little Brother

What's up readers? Today I'll be introducing to you a new vulnerability called the Format String vulnerability (in case you missed the title). It won't be much, just a little motivation to keep you guys going. A little teaser, if you may. Pre-requisite information: For those ...more

### News : Free Alternatives to Pushbullet Pro Features

As one of the most powerful Android apps for connecting your phone or tablet to your other devices in various ways, Pushbullet had always been a fan—and Gadget Hacks—favorite. However, ever since late last year, many of the app's popular and once-free features now require a c ...more

### How To : Crack Wi-Fi Passwords—For Beginners!

An internet connection has become a basic necessity in our modern lives. Wireless hotspots (commonly known as Wi-Fi) can be found everywhere! If you have a PC with a wireless network card, then you must have seen many networks around you. Sadly, most of these networks are sec ...more

### How To : Generate Private Encryption Keys with the Diffie-Hellman Key Exchange

When we are building programs that communicate over a network, how can we keep our data private? The last thing we want is some other lousy hacker sniffing our packets, so how do we stop them? The easy answer: encryption. However, this is a very wide-ranging answer. Today we'r ...more

### Exploit Development : How to Write Specific Values to Memory with Format String Exploitation

During our last adventure into the realm of format string exploitation, we learned how we can manipulate format specifiers to rewrite a program's memory with an arbitrary value. While that's all well and good, arbitrary values are boring. We want to gain full control over the ...more

### Guide : Privacy Matters

Greetings all. Today I intend to append a new series to my mini-collection of posts. This series will consist of informative guides for the purpose of depicting certain aspects of the White Hat profession that I believe are of profound importance. Furthermore, I will keep thi ...more

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