Need to know how to solve complex ratio problems in basic algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn a system for finding solu...
Need to know how to solve AX+B=C-form linear equations in algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn a system for solving line...
Need to know how to solve a matrix-form linear equation in algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn a system for solving lin...
Want to know how to sum a series of consecutive integer numbers (e.g., 1+2+3+4+5)? You're in luck. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll...
Looking for a guide on how to solve quadratic inequality problems? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the right ans...
Looking for a guide on how to work with fractional exponents in basic math? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve fra...
Looking for a guide on how to work with negative exponents in basic math? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve simpl...
Looking for a guide on how to tell whether two fractions are rationally equivalent to one another? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll...
Looking for a guide on how to solve quadratic equations by factoring? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to factor and solv...
Looking for a guide on how to calculate the greatest common divisor for two numbers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to ...
Need to know how to figure out the least common multiple or LCM of two given numbers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to...
Need to know how discover the area of a triangle or rectangle? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the area and peri...
Looking for a guide on how to sum and subtract negative integers? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to add and subtract ne...
Are you feeling in the mood to really test the limits of your arteries? Then this is the recipe you've been looking for. Everything is better with bacon, right? So take that sausage and wrap it up with some bacon for a truly decadent adventure in gluttony. This is literally not for the faint of heart! This video will show you how to cook a bacon wrapped sausage roll.
Linear equations are inescapable in life - whether you're taking algebra, geometry, or trigonometry, linear equations are the foundation of math as we know it.
Focus groups strike fear into the hearts of even the most season marketer, and with good reason. In a world where everything is subject to change based on public opinion, from movie endings, to popcorn flavors, to logo colors, focus groups can make or break a new idea, but it doesn't have to be that way. A focus group is just a way to gather opinions in a vigorous way and can be very useful. Watch this video tutorial to use a focus group to develop and test a new brand name or corporate ident...
If your students are having trouble remembering how to calculate density properly, check out this video. In it, you will learn the lyrics to a very fun song that will help your kids with the equations and vocabulary. Follow along with Mr. Edmonds as he shows you his favorite song to the tune of "Popular" from the Broadway show "Wicked".
The Family Circle Test Kitchen brings us this demonstration of how to prepare a delicious Stuffed Flank Steak. The stuffing is made by combining a package of frozen spinach, thawed and drained, some crumbled blue cheese, a jar of roasted red peppers, drained and chopped, some bread crumbs, an egg yolk, and some garlic salt and black pepper.
Another way to track your ovulation cycle is with a fertility microscope. A fertility microscope allows women to identify their most fertile days by testing and viewing the visual changes that take place in saliva throughout the monthly cycle. This method is reliable and effective, and can greatly increase your chances of getting pregnant. All this requires is saliva, so it is not invasive and doesn't use needles. So, check out this tutorial for advice and instructions on how to use one of th...
In this how-to video, you will learn how to recycle your used coffee grounds into compost for your personal garden. Coffee grounds are very good for your soil and can be used for all winter long. If you stick a thermometer in there, you will see that it is about 106 degrees. This means that it is working on the inside. You can also your hand to test the heat inside the compost as well. You should make about a cubic yard of the coffee grounds for the compost to be effective. This video gives y...
In this episode of Southwest Yard and Garden Curtis Smith shows you how to turn a steep slope into a usable garden. By building walls along the slope using serpentine designs he shows you how to obtain a compromise of both strength and artistic design. Starting with a good concrete footer and rebar you can construct a retaining wall strong enough to hold the weight of the slope. Materials such as wood and railroad ties can be used but may not stand the test of time as the weight of the soil c...
In this video you learn how to make a digital pinhole camera. The video begins with an introduction addressing the main themes to be dealt with in the video - tight budgets, photography and specialized lenses. In this video, Kai modifies a photo lens cap by poking a large hole in it. After making this large hole, he makes a smaller hole in a thinner material and lines the hole up in the center. He calculates the size of the hole he needs based on the wavelength he will be photographing. He us...
The steak should be at room temperature so it will cook quickly and evenly. He heats some oil in the pan until it just starts to smoke and then puts in the steak. Steak should be turned only once during cooking. The Chef demonstrates how to test for rareness by touching the meat and then comparing with spots on the inside of the hand.
The truss rod is a big metal bar that goes through the whole neck on your guitar and is used to control the amount of arch that the neck of your instrument gets. You will want the neck to be essentially straight, with a tiny bit of curve. Lots of things can cause your wood to arc..weather, storage, age.. and the truss rod is used to fix this and keep the neck straight allowing you to play your piece properly. All guitars come with a truss rod and they are easy to adjust if need be. This tutor...
Learn how to make LED ice cubes with this tutorial! Steps:
The Wedge ROP is a render output driver, which can be used to change variables on the fly while rendering. This can be very useful when simulating, in that you can test out different parameters to see the different results. It's a relatively new feature in Houdini 9.5.
This video shows you how to make a prank toy called "The Evasive Beeping Thing." You will need: a 555 timer, a couple of 3904 transistors, a couple of capacitors, some resistors, a 9-volt battery clip, a small speaker, and a small piece of circuit board to settle everything. Follow these simple steps:
Liven up your parties by making your own fog machine, using items that you can find around the house.
Bored with crosswords and sudoku puzzles? Well, try your hands at a new type of puzzle: KenKen logic puzzles.
Tim and Kevin meet up/hang out & talk their talk. They discuss buying domain names, choosing business names, starting companies, and selling books by their color. These two entrepreneurs have lots to teach us about selling ideas and making profitable businesses.
This is footage from B.F. Skinner's psychological tests on shaping behavior.
If you're looking for some natural dog food recipes or homemade dog food, this recipe from the Natural Pet Food Cookbook is a great start. Chef Jason Hill of Chef Tips puts Bandit's Beef Stew to the test, and this dog food recipe was approved with enthusiasm by his family's Shih Tzu puppy, Sugar. This recipe can be prepared as an organic dog food with the right ingredients. Just choose canned organic vegetables when preparing this meal. It's also a human grade dog food, as Chef Jason Hill att...
Stuck on one side of a river or ditch? If you are stranded with no other way to get to your destination you will need to build a bridge! Without many supplies, your best bet is a beam bridge which can be made with just a single piece of wood. This video will show you how to get from one place to another.
You can get an expensive ticket for driving with a busted tail light. But that's not all. Driving with a faulty brake light can be dangerous. Replacing the bulb is a simple task that takes only a few minutes.
Roughly half of all Americans believe in extra sensory perception... Are you part of that statistic? Ever get the feeling you have a paranormal ability? You can investigate your psychic abilities and hone your skills with these tips.
Penetration testing, or pentesting, is the process of probing a network or system by simulating an attack, which is used to find vulnerabilities that could be exploited by a malicious actor. The main goal of a pentest is to identify security holes and weaknesses so that the organization being tested can fix any potential issues. In a professional penetration test, there are six phases you should know.
Anyone who has used Linux long enough is familiar with sudo. Short for superuser do (or substitute user do, depending on who you ask), it allows users to run commands as either root or another user on the system. From a hacker's point of view, sudo is often all that stands between them and root access. We'll be exploring an older vulnerability in sudo that allows a user to run commands as root.
Web-based mobile augmented reality technology continues to gain momentum as Google is set to expand the standard for immersive web content to AR.
Does your Activity page on Instagram feel cluttered? You're not alone. Instagram lumps all alerts into one long, chaotic timeline, so if you want to see comments or likes, you have to weed through everything else including shares from other users, memories, recommendations, and new follows. Instagram knows its a mess, and the company plans to add notification filters to sort things out.
If you're an iOS developer, welcome back to beta testing. Apple just released the first iOS 12.4 developer beta today, Wednesday, May 15, just two days after the public release of iOS 12.3. While Apple has not shared any release notes, we know this latest version of iOS will support Apple Card, Apple's upcoming credit card.
