Calculation Search Results

How To: Find molar mass

It’s time for science. You are able to calculate the molar mass for a compound using the periodic table and the amount of compound involved. You might need to know this in your everyday life but you will definitely need this in a chemistry class.

How To: The Hidden Way to Delete Numbers on Your iPhone's Calculator

Let's say you're using your iPhone's Calculator app, and you're knee-deep into a complicated calculation with many steps. You type in a large number, for example, "123,466,789," but mess up. You meant to type "5" midway through but accidentally typed "6" instead. The only thing to do now is start over, no matter how far along you are, right? Wrong.

How To: Use Any Song on Your iPhone as a Gradually Increasing Alarm for a Gentle Wakeup

If you'd rather be gently relaxed out of bed instead of stressed out at loud alarm sounds, there are a few things you can do on your iPhone. One of your best options is to use carefully selected songs that start out calm and soothing and gradually increase in intensity and volume. But you could also use a more intense track you know will wake you up, only set to ascend in volume to ease you out of slumber.

How To: Use Beginner Python to Build a Brute-Force Tool for SHA-1 Hashes

Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than others, and a little Python could be used to brute-force any weak hashes to get the passwords they were created from.

How To: Automatically Connect to Free Wi-Fi Hotspots (That Are Actually Free) on Your Samsung Galaxy Note 2

A free Wi-Fi hotspot can be a lifesaver. Whether it's because you have shitty reception, need faster connectivity, or just don't want to go over your monthly data plan, free Wi-Fi in public areas is greatly appreciated. While connecting to these free hotspots is fairly easy, finding them can become a whole nother issue. I've been in plenty of situations where I wasted my data plan instead of taking a few steps to the right, where free Wi-Fi would have been waiting for me and my Samsung Galaxy...

How To: The Only Ingredient You Need to Make Boxed Brownie Mix

Boxed brownie mixes advertise their convenience compared to homemade brownies—with only a few ingredients, they promise a moist, chocolatey crumb. However, these "instant" mixes still require fresh ingredients and a baking time that matches that of homemade brownies. When you're craving a chocolate fix but you're coming up short on eggs, oil, and time, don't despair: you can still make brownies using a can of soda. Two Different Methods, One Soda Required

How To: Get an Automatic Light & Dark Theme on Android

Perhaps the best thing about Android is the endless amount of customization you can add to your device. From icon packs to custom launchers and even custom ROMs, there's truly something for everyone. One of the most popular options among Android enthusiasts is adding a system wide dark theme. The methods to do this vary, but you can now automate this process thanks to Android Oreo.

How To: Calculate Tips Faster on Your iPhone Using the Shortcuts App

When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easier way, and you don't even have to leave your lock screen to get the results.

Ingredients 101: The Essential Homemade Chicken Stock

The first written account of "stock" as a culinary staple goes back to 1653, when La Varenne's Cookery described boiling mushroom stems and table scraps with other ingredients (such as herbs and basic vegetables) in water to use for sauces. But really, the concept of stock has probably been around for as long as people have been using water to boil food.

How To: Understanding Signature Schemes: How Data Sources Are Authenticated, Secured, & Spoofed

One of the biggest problems in data security is authentication of data and its source. How can Alice be certain that the executable in her inbox is from the venerable Bob, and not from the not-so-venerable Oscar? Clearly Alice wants to know because if this file is actually sent to her by Oscar, the file might not be a game, but a trojan that can do anything on her computer such as sift through her email and passwords, upload her honeymoon pictures, or even turn on microphones and webcams. Thi...

How To: Customize and Use Control Center on Your iPhone for Quick Access to Your Most-Used Apps, Features, and Settings

If you're not using Control Center on your iPhone, you're missing out on a powerful tool that can streamline how you interact with your device, make certain tasks more efficient, and give you quick access to system tools, switches, and sliders for quick changes no matter where you are or what app you're in.

How To: Divide proper fractions

This video shows you how to easily divide proper fractions. In the first step, you have to calculate how many times does the denominator fit into the numerator. You need to divide the numerator by the denominator. If the denominator does not fit into the numerator, you have to write 0, followed with a point, at the top of the calculation ("0."). Next, you add a 0 next to the numerator (multiply it by 10). Now, you have to calculate how many times does the denominator fit into the numerator ag...

How To: Calculate the Cost of Driving

With gas prices soaring in the US and around the globe, the cost to drive to a vacation destination is becoming a much larger expense item in the overall travel budget. Although it's easy to see that gas prices have risen dramatically in the past several months, it's not nearly as easy to figured out how it will impact that upcoming car trip, so here are the items you need to take into consideration to calculate how much it will cost to drive to a destination.

How to Be Your Own SpaceX: Design, Build & Test Liquid-Fueled Rocket Engines

Move over NASA— SpaceX is taking over. Well, not really. But today, the privately funded spacecraft company broke all expectations when their Dragon capsule fell to a soft landing in the Pacific Ocean, completing an undoubtedly successful demo flight of nearly two full trips around Earth. It was the first re-entry of a commercial spacecraft ever, bringing commercial space transportation closer to reality.

How To: Build a Simple Redstone Adding Machine in Minecraft

Welcome to Minecraft World! Check out our advanced tutorials and come play on our free server. There are many amazing redstone builds, but probably the pinnacle of redstone technology is the redstone calculator. The ability to turn simple game mechanics into a real-life calculator is one of genius, pioneered by some very clever Minecrafters many months ago.

You Won't Believe They Roll: How to Build Half Circle and Elliptical Wobblers

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 roll down the slightest of inclines or even travel a significant distance on a level surface if given a push or even when blown on.

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