## Art of Problem Solving: Combining Like Terms with Multiple Variables

We know how to simplify these one-variable expressions like this. We bring all the terms that have variables in them, the “like terms,” the 3x, the 7x, the minus 2x, we bring all those together. Write this as 3x plus 7x minus 2x. And then we put the constants together over here. Plus 4, minus […]

## How to do Pipefitters Dimensional Math and Conversions without Formulas | Pipe Trades Pro

Now I want to show you how you can use the Pipe Trades Pro to do all kinds of dimensional math and unit conversions and I’ll give you a couple of pipe trades related conversions. We can just show you how quickly you can do the math. Let’s say we have a flow rate of […]

## How to do Fast & Easy Pipe Data Table Look-ups | Pipe Trades Pro

Now I want to show you the built in pipe data tables of the Pipe Trades Pro. There’s 7 material types built into the calculator. Simply press the [Pipe Mat’l] key. You’ll see the first of the 7 – steel. Continued presses will show you the rest of the materials – stainless steel, brass, aluminum, […]

## How to Calculate Pipe Drop, Slope and Percent Grade | Pipe Trades Pro

Now I’d like to show you how you can use the Pipe Trades Pro to make easy work of calculating drops, slopes, angles and percent grades for drainage. Let’s say you have a 25 foot pipe run that requires 1/8 inch drop per foot. What’s the total drop required? Clear the calculator and enter the […]

## How to Calculate Simple and Rolling Offsets | Pipe Trades Pro

One of the most useful functions of the Pipe Trades Pro that I want to show you next is the ability to easily calculate simple offsets and much more complex and different kinds of rolling offsets. Let’s say you want to find the center to center travel for a pipe offset with a 24 inch […]

## Turning Gravity Into Light – Smarter Every Day 146

Hey it’s me Destin. Welcome back to Smarter Every Day. If you’ve ever watched Smarter Every Day you know that I spend a lot of time off the grid. Right now I’m in the Amazon rainforest and I don’t really know what this thing is. I think it’s some kind of termite.. thing, on a […]

## 6. 11th Class Physics Lecture | Current Electricity | Drift Velocity of Free Electrons (GA)

let us study about drift velocity of free electrons. we have discussed that in the situation of conductor when, a battery is connected across it. and, the circuit is closed. You can just have a look on the situation i am drawing here. this a battery which is connected across cylindrical conductors wire switch. as […]

## 12. Class 12 Physics | Current Electricity | Circuit Symbol of a Resistance & Equations of Ohm’s Law

let us discuss about circuit symbol of resistance and equation of ohms law. i hope all of you aware about that in. electrical circuit, resistance is represented by a zigzag line. say if there are 2 terminals ay and b. across which resistance r is connected. and say if, at terminal ay potential is v-a […]

## Flexible Transparent Electrodes – Lab Video

Meet Yoni, he is a Nanotechnology Honours research student here in the Ellis research abs. He works very hard Hello Yoni So… what are you working on? Ahh grey bits of plastic? Just kidding, are these flexible highly conductive nanocomposite transparent electrodes? But what does that mean exactly? Well you see, transparent electrodes can be […]