Olivia and Andrea created a song to the tune of "I'll stand by you" by the Pretenders to teach you how to balance chemical equations. A chemical equation requires coefficients in order to be balanced. You can balance a chemical equation by making use of the Periodic table. The example reaction in the song is that of aluminum and oxygen to produce aluminum oxide (Al + 02 -> Al203). You can systematically add coefficients to the reactants and products to balance the equation. A chemical equatio...
Have an interest in nukes? Look no further. Learn about nuclear reactors, bombs, & reactors in this six-part video lecture by Professor Richard Muller of the University California, Berkeley. This lecture is from the spring 2006 webcasts of "Physics For Future Presidents". From the videomaker:
Watch this science video tutorial from Nurd Rage on how to make iodine from an alkali metal iodide, hydrochloric acid (HCI), and hydroxide peroxide (H2O2).
Try out this science experiment... watch this video tutorial to learn how to make a simple rocket with film canisters. This is purely educational, and demonstrates the reaction of an Alka-Seltzer tablet, toilet paper, and water. If you don't have Alka-Seltzer, you can substitute it with baking soda, then substitute the water with vinegar.
Try out this science experiment... demonstrate pressure and volume. Watch this video tutorial to learn how to create an explosion with liquid nitrogen and a plastic bottle. See the demonstration of the exploding reaction of the pressure build up in the bottle.
In general, the internet can be a cruel place, and Instagram is no exception. Most of the time, the platform is a fantastic way to share and view unique and creative content, to reach an audience of both fans and friends. People can step out of line and harass or bully others on posts to the detriment of the entire community. However, this type of commenting won't be sustainable for much longer.
The future of forests looks dreary in the face of a warming climate, but scientists are exploring the relationship between soil microbes and the ability of trees to move to higher altitudes, a key component of their survival.
Keeping apples or avocados from browning after being cut is impossible; within minutes of being exposed to air, these fruits (yes, avocado is a fruit) begin to brown. No matter what you try—adding lemon juice, keeping the pits in place, immediately sealing the produce in an airtight bag—brown discoloration always occurs. However, air is not the only reason that foods like apples, avocados, and lettuce brown: it's also due to the knife you're using.
We all carry a bit of anxiety around with us. Is our boss still annoyed because we could barely stay awake in yesterday's pre-dawn meeting? Will our friend hate us forever because we forgot to call them back two weeks ago? Whatever worries pop up in your mind, whether they're monumental or insignificant, it can be hard to quiet those nagging voices, but you can shut down your nonstop mind with a bit of relaxation, distraction, and action.
Being the bearer of bad news is unpleasant; there's nothing more uncomfortable than offering up a spoonful of negativity. Whether you're a supervisor who spends a lot of time interviewing and rejecting candidates, or simply someone who has to say "no" to a friend, it's never fun to break bad news. But sharing unpleasant words or feedback with another person can become less of a burden with a few simple steps.
Volume markings on large pots and mixing bowls make life so much easier. They cut out the step of measuring and save you the trouble of washing measuring cups. However, there aren't many containers out there that actually have volume markers in them.
There is not an actress who walks the red carpet without a quantity of hair that her mother didn't give her (we know that's a lot of negatives, but hopefully you get our gist). While it's true that many actresses are genetically blessed, that doesn't mean that each and every one of them was born with thick, Victoria's Secret hair.
One of the first examples shown which will help save your marriage through better communication involves keeping a positive attitude. Feelings are brought up as a very important subject to bring up with your significant other to communicate proficiently. Giving your self time to plan out how you need to engage your partner is a very important aspect to communication. Always starting and ending conversations in marriage with a positive attitude is shown to always bring positive communication. ...
In this tutorial, we learn how to graph a circle. When given an equation to graph the circle, you will first need to find the vertex of the circle. Once you find this, you can use those coordinates to mark the vertex on the graph. Follow the negatives and positives to go up, down, left, and right on the graph. Next, you will need to find the 'r' value of the equation. After this, you will use this to continue to graph the rest of the points around the vertex. When finished, draw the outline o...
In this video, we learn how to understand the properties of real numbers. Natural numbers start at one and continue on and on. Zero is not a natural number. A whole number is just like a natural number, except it includes zero. Integers are the negatives included with whole numbers. There are no decimals included in integers. Integers also include positive numbers and no decimals with them, just whole numbers. Rational numbers are fractions and all decimals that end at a certain point. Once y...
In this tutorial, we learn how to determine if lines are parallel or perpendicular. You will be given two straight line equations. First, remember that parallel lines have equal slope, identical to each other. Perpendicular lines have negative reciprocal slopes. For example, 2/3 and -3/2 would be a perpendicular line. If you think of parallel lines, then you can graph them to see what they look like when written down. Then, graph the other lines to see what they look like as well. Once you un...
In this video, we learn how to identify number types. You will need to figure out what numbers from a list is a rational numbers in your math equations. A natural number is a counting number (1,2,3). A whole number is a natural number and zero (0,1,2,3). An integer is a whole number and a negative whole (-2,-1,0,1,2). A rational number is any number that can be expressed as a ration of integers. An irrational number is any number that's not rational and non-perfect. Once you understand these ...
In this video, we learn how to make your own solar panel.The amorphous solar glass is the cheapest but it's also the least efficient. You can do anything you want with these and they are durable. The hexagon cells are the most efficient and most expensive as well. The poly crystalline is almost 2 watts a piece and can be purchase in lots of any size. You have to tab these cells together and they are extremely fragile. Be careful when you work with these. To make these, you will solder tabbing...
In this tutorial, we learn how to solve inequalities by multiplying or dividing. Start out with your equation written out in front of you. Now, find the variable in the equation and figure out how to get rid of the denominator underneath it. Divide this on both sides, then you will be left with the variable with the inequality. Don't flip the inequality if you don't divide by a negative on both sides. Then, write out the rest of the equation. Once finished, do the rest of the math for the rig...
In this tutorial, we learn how to find abc, curve direction & y-intercept (quadratic eq). First, you need to find the a,b, and c of the equation. A will equal what the coefficient is in the equation, B will equal the second, and C will equal the third term. This tells us if the numbers are positive or negative, so so know if the parabola opens up or down. To graph C, you will know what the y-intercept is going to be, then find the matching units. After this, you will use B to shape the parabo...
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 718th installment in their series of digital spreadsheet magic tricks, you'll learn how to find the Absolute Value Max of a set of integers (positive, zero and negative) using the MAX and ABS functions.
There's nothing like smacking a small round ball to help get rid of any anger or frustration. Not only can you help relieve negative energy, but you can also use it to practice your golf swing. But what clubs should you use and how do you properly use them?
Bead frames are pretty simple to understand. Rather than simply stringing beads onto a pendant or necklace, you can attach them to bead frames, which come in all shapes and varieties, to make a novel design that can take advantage of negative space. It goes without saying that elaborate bead frames make the entire design more ornamental, whereas a simple round wooden bead base helps put the spotlight on the bead in the center for a subtle glamour.
In this clip, you'll see how to construct a pass filter, commonly called a high-gain or band-pass filter. To do this, you'll use the HSV channels to identify what to do, the RGB curve to make an inversion mask, or negative, so that the image is added to itself, thus evening out the contrast and making a very flat image. This image can then be tiled and used as a seamless texture. Whether you're new to the Blender Foundation's popular 3D modeling program or a seasoned graphic artist just inter...
In this software video tutorial you will learn how to soften skin feature in Lightroom 2 in Yanik's Photo School. Select a photo and zoom in to the skin area. Click on the adjustment brush, or ctrl K. Here you can adjust 7 features; exposure, brightness, contrast, saturation, clarity, sharpness and color. But, if you click on the other 'exposure' dropdown menu, you will get these 7 options and additionally a 'soften skin' option. Click on 'soften skin' and it gives you the options to add nega...
If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 23rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to work with skew in histograms for quantitative Data. Learn how to skew left (negative) and skew right (positive) with ...
Multi-Step inequalities are inequalities which take more than one step in solving them. You need to follow a step by step approach in solving these kind of problems. Through there is no general method to solve them you can follow a set of guidelines. First thing you have to do is make sure that only x terms remain on the left hand side of the equation. If there are any other numerical terms add the negative of that term to both the sides of the equation to eliminate it on the left hand side. ...
This video shows you how to make a homopolar motor. First of all things you need to make motor are AA battery, couple of magnets and copper wire. Now take magnet and attach it to the negative end of battery, now take a copper wire and bend it to the shape shown in the video and place it over the positive end of the battery, now you will see that wire starts rotating. Now to make a stand take a small plastic lid and two pieces of rubber magnet then place magnets to both the sides of the lid an...
Solving the Inequalities using graph, first you have to take the inequality equation into equal. Then convert the equation into straight line equation i-e(y=mx+c). Giving own values for 'x' like (-1, 0, 1) we would get the value for 'y'. By plotting these points in the graph, you will get an straight line. If the given equation is greater than symbol, shade towards the positive part. If the given equation is smaller than symbol, shade towards the negative part. This is an one method to solvin...
A thesis statement can be one of the most difficult parts when it comes to writing a paper. Not only can it be confusing, but it can drive a person mad! Okay well not mad, but it can certainly casue some people to get a tad bit irritated. So to avoid that negative feeling, watch this tutorial on how to write one. You'll thank us by writing your own paper about how we are so cool!
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 173rd installment in their series of digital spreadsheet magic tricks, you'll learn how to show negative time with the "Use 1904 date system" as well as how to create a formula that will show the time over or under a given hurdle.
Ingleton Pottery demonstrates how to pierce carve a clay pottery bowl. First, form your bowl on a potter's wheel. Then take a blade to the undried clay bowl and score your design into the bowl using the piercing technique. Gently press out the design so that the clay is removed from the negative space created by the scoring marks. Continue making the design around the bowl. You can make intricate designs around the bowl using the piercing and scoring technique. Be careful not to damage the bo...
In this tutorial, we learn how to maintain a butane lighter. There are a variety of butane lighters available, but basics for all of them are all the same. First, adjust the flame dial all the way down to negative. Then, purge the lighter using the back of a wooden match. You will hear a hissing noise as the butane and air escape. Do this until you can no longer hear the noise. You will now clean the lighter by holding a canister of air at a 45 degree angle 3 inches away, spray a few times an...
Brightstorm explains how to use definite integrals to find area. There are two basic area problems: one in which the area lies between the function and the x-axis, and one where the area lies between the two functions. In the first case, if the curve lies above the x-axis for x=a to x=b, the definite integral returns the area. If it lies below the x-axis for x=a to x=b, then the definite integral returns a negative area. In the second case, we assume that f(x) is the higher curve and g(x) is ...
In this math tutorial, you will learn how to simplify square roots with product and quotient rules. To begin, you will need to multiply the square roots so that the two square roots in your equation are reduced down into one. The rule for non-negative "A" and "B" is that the square root of "A" multiplied by the square root of "B" yields the square root of A x B.
A factoring problem that has to be solved by grouping is easy to identify, because you can always identify if there are any similar terms in a polynomial. Now, if you find any variable common in any terms pull them out as the common leaving the rest of the terms. After pulling out the common terms you can group the rest of the polynomial. Be careful while pulling out signs. Pulling out a positive number does not effect the signs of terms in the polynomial, where as pulling out a negative numb...
In this video the instructor shows how to find the slope of a line given two points that like on the line. Slope of a line is the measure of the steepness of the line compared to the angle made by the line with the x-axes. A line with positive slope slants forwards and a line with a negative slope slants backwards and a line parallel to x axes has zero slope. So if you are given two points (x1, y1) and (x2, y2), the slope of the line passing through those two points is equal to m = (y2 - y1)/...
This video shows “How to get over a big break up”. Even if you are in love with the other person, you have to remember that they might not be in love with you. What may help you is to write a list of all the bad things about that person, for example the things that didn't satisfy you in the relationship. You could make some changes in your life, remove the things that remind you of the other person. You could take the things that remind you of that other person, and write a negative memory on...
In this video the instructor talks about parallel and perpendicular lines. Parallel lines are lines whose slope is the same. Now take the equations of a couple of parallel lines. Graph those lines on a coordinate axes and you can see that the lines are parallel to each other and never intersect each other. Perpendicular lines are those whose product of slopes is negative one. Perpendicular lines intersect each other and they make a perfect 90 degrees with each other at the point of intersecti...
In this video the instructor shows how to multiply and write rational expressions in lowest terms. The fist thing you need to do is cancel out the common factors in the numerator and the denominator. You can cancel a term in the top with a term in the bottom even if they are diagonal as long as one is in numerator and the other is in the denominator. After cancellation if you have a term in numerator and an identical term in the denominator but with opposite signs, then pull out the negative ...
