In this video tutorial the instructor shows how to derive the formula to compute interest compounded annually. He starts with explaining the basic concepts like principle which is the amount you borrow and the rate of interest or annual percentage rate (APR), which is the rate at which you pay the interest up on the borrowed principle. He shows that the amount after the end of one year is amount A = P(1+APR),and he goes on and generalizes how to compute it for n years. This video shows how to...
This video shows the viewer how to use paper tape to cover the joint between panels on a dry wall. The creator of the video does this using a 6-inch dry wall knife and a curved trowel. He first applies standard compound to the joint using the trowel. The compound should be applied evenly and the thickness shown is said to be around 1/8 inch. After applying the compound he then gently presses the tape over the joint. He then smoothes the tape on the wall, using a dry wall knife. While doing th...
Find out a new way to solve the Rubik's Cube made famous by Erno Rubik, master puzzle maker. Try to get the OLL (Orientation of the Last Layer) using a new method that lets you look at the cube and figure out a two algorithm move solution to orienting them correctly. Just watch this video tutorial to see how to solve a Rubik's Cube with the Compound OLL method.
Watch this instructional video on how to coat detail work around boxes and pipes with joint compound. Spackling drywall is a delicate art, but anyone can create a perfectly smooth surface with a metal putty knife and a fresh bucket of spackle. Learn how to lay dow thin coats of putty around details and box shapes to avoid heavy sanding in the second stage of prepping a room for painting.
Watch this instructional video on how to coat butt joints with joint compound. Spackling is a delicate art, but anyone can create a perfectly smooth surface with a metal putty knife and a fresh bucket of spackle. Rock the putty knife back and forth to coat a butt joint with joint compound. Once you are ready, try out to bonus trick for spackling masters.
Here's a way to make your drywall project perfect. Mix up some thin joint compound, using more water than normally required for spackling holes in the wall. You can roll the putty onto the wall with a think rolling brush. After the joint compound dries, it only requires a light sanding. Watch this instructional video to create perfectly smooth drywall surfaces with liquid spackle.
Recurve bow or compound bow? Learn the differences between a re-curve bow and a compound bow in this archery video tutorial. Take action: use consistent shot, ensure consistency to allow for humane shots, and expect 20 yards with recurve bow. John Swindle, the instructor of this how-to video from Live Strong, is the owner of Arrowhead Archery in Tampa, Florida. He has been an archer and a bow hunter for over 18 years.
Tim Carter, of Ask the Builder, demonstrates an easy way to get smooth corners with a joint compound in your drywall remodel work in your house. Home repair has never been easier.
This experiment is intended to introduce students to hydrated compounds. These compounds have water molecules coordinated in their chemical structures. Examples CuSO4*5H2O, BaCl2*2H2O, and NaC2H3O2*3H2O.
Using this tutorial, you will learn how to make a comic book style cloud in Adobe Illustrator. 1. First, select the ellipsis tool and draw a few shapes. 2. After drawing some shapes, select them and go to window and choose pathfinder. 3. Click to merge the shapes together. 4. Next, go to the layers window. Choose layer 3 and highlight the compound shape. Then select duplicate compound shape. After create one more duplicate. 5. Hide the first duplicate layer and choose the third one. Change th...
In this video, we learn how to calculate compound interest. Start with your example of investing $2000 at 3% interest over four years. Now, write down how much you have at the start of year one. To find the percent of this you will need to simply do the amount divided by one hundred and times it by three. Then, you will find the number for the amount of interest you had for that year. Continue to do this for each year and the amount of money you will increase each year. Do this until you reac...
In this video, we learn how to use compound tenses with "haber" and "estar" in Spanish. "I am speaking" would translate into "You estoy hablando". If you are talking about a girl eating, you would say "Ella esta comiendo". To say "they were writing letters", you would say "Ellos estaban escribiendo cartas". You will see the form of the verb changing in each of the sentences. You will also see the gender of the verb changing in each of the sentences, depending on who is being talked about. The...
Aqua regia (königswasser in German) is a very corrosive liquid made from a mixture of nitric acid and hydrochloric acid (1:2 - 1:3). This chemical mixture is so corrosive that it can even dissolve gold, and that's what you'll learn about in this video.
Math is fun! That is a statement that not many people find to be true. But it can be if you understand it and know a few tricks to solving certain problems. In this tutorial, you'll find out how to connect interval notations and compound inequalities. Don't know what those words mean? Check out the tutorial, it may help you with any problems you have. Good luck and enjoy!
This video workout is aimed at skinny guys who want to get ripped. Some tips for weight training are to train less than 45 minutes at a time, focus on compound movements, try to get 5% stronger every two weeks, don't do more than one or two forced reps, and split your workout into 3 days for various body parts. To gain muscle mass, eat about 15 times your current body weight in calories, including 1-1.5 grams of protein per pound. Eat twice as many carbs as protein, high quality fats, and nut...
Learn how to make compound shapes, or spline objects made of more than one spline in 3D Studio Max.
In this video, we learn how to install dry acoustic flooring with Fermacell. To start, you will level the floor and apply compound if you need. Next, you will lay the Fermacell around the room on top of the leveling compound. Push the flooring tightly together so there are no spaces in between them. You may need to cut the flooring to make sure it's the correct shape for the wall. After this, apply flooring adhesive to the seams to make sure they are secure as they are laid down. After this, ...
In this tutorial, we learn how to tie a compound double coin knot. First, take two strings and make a loop with the left one, then loop right right one into that. Tighten these together, then bring the end of the right working string over the loop and through the bottom of the shape, then continue to thread it through. Now, repeat this on the left side with the left string. Next, loop the right side of the string and push through the loop with the end of it. After this, tighten up the ends of...
In order to prepare Compound Butters, you will need the following: butter, blackberries, lemon, fresh dill, potato masher, 2 bowls, a fork, and waxed paper.
In order to clean and restore your headlights, you will need the following materials: razor blades, tape, liquid rubbing compound, and a power polisher.
In this home-science tutorial from WonderHowTo favorite Nurdrage, you'll learn how to create hydrochloric acid using 140 grams of sodium bisulfate, a pH lowering compound available in most pool stores, and 60 grams of sodium chloride salt and an external heat source. Watch for a full demonstration of the process and complete, step-by-step instructions.
In this tutorial, we learn how to make verdigris with copper and vinegar. Verdigris is a compound of copper that is blue and powder. You will need: copper metal, vinegar, a big jug, and a small beaker. Now, place the small beaker inside of the jar, then fill the bottom with vinegar. Next, put the piece of copper metal inside of the jar making sure it sits inside the small beaker. Seal this and put it in a safe and dry place. Leave it for a good month, then when you come back you will have a n...
As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 2nd installment in his "Excel Finance Trick" series of free video lessons, you'll learn how to use the FV function. See the math formula for calculating future value and for calculating the effective interest rate. Also see long hand how c...
Final Touch TV shows viewers how to remove scratches from the car with wet sanding. This is for fine scratches that may be on your vehicle. First, you need to use 3,000 grit sand paper with a block and scuff up the clear coat first with this. You should dip your block in some soap and water in and up and down motion. You need to make sure you do not go all the way through the paint. Most scratches are on the clear unless it appears deep. Now, take a 3 compound, spray it on and rub it in. Next...
Chuck Miller gives us a great tip for patching a small hole in drywall, such as a hole from an outlet box.
Cut out the core of the onion - where the root comes out. This is the section that has the most tear-inducing properties. Soak the onion in water before cutting - water will dilute the sulphuric compounds -or else, freeze the onion before cutting. The sulphuric compound that leads to tears will not react as quickly when it's cold. However, don't freeze it for too long because it can affect taste. 10 minutes should do it. Cut the onion in a well-ventilated room. Give the fumes a chance to esca...
In this video the author talks about the basic concepts in propositional logic, explaining how important this concept is to understanding the basic concept of logic. He says that propositional logic is also called "sentential logic" or "statement logic". He states that a proposition is synonymous to claim, statement or insertion. He states that propositional logic deals with logical relationships between propositions taken as wholes. He states that in proposition logic the proposition is deal...
Cytochrome P450 (P450s) are proteins found in nearly all living organisms, which play roles that range from producing essential compounds and hormones to metabolizing drugs and toxins. We use some of the compounds synthesized by P450 in plants as medical treatments, but the slow growth and limited supply of these plants have put the drugs' availability in jeopardy and jacked up prices.
Some types of bacterial infections are notoriously tough to treat — and it's not all due to antibiotic resistance. The bacteria themselves are rugged and hard to penetrate with drugs.
Coronaviruses are common viruses, and most of us catch one at some point — they cause about 30% of all common colds. A new accidental discovery could help fight these viruses, even the deadlier, emerging ones.
Two college students; Kevin Martin and Joey Smokey introduce the concept of Molar Mass. They start of by explaining what molar mass is, which is the relationship of a mole and a gram, it totals up the weight(in g)of a molecule. An example: say you have this compound, Sodium phosphate (Na3PO4). You know you have three sodium atoms, one phosphorus atom, and four oxygen atoms. You basically find the weight of each atom, if you have three sodium atoms, you multiply it's atomic mass by 3 (the numb...
Not sure how to balance a chemical equation? According to the rules of chemistry, matter must be conserved in chemical reactions. When you balance a chemical equation, you account for all of the matter in the reaction.
Give a bird a home with help from this handyman tutorial! Learn step-by-step how to build a professional looking Bluebird nesting box bird house. To build this nesting box you will need the following tools & materials: rough cedar or pine, a tape measure, pencil, speed square, hand saw, compound miter saw (if possible), exterior wood glue, drill bits, screw gun or drill, paddle bit, coarse thread drywall screws, deck screws, galanized finished nails, and a hammer.
Learn how to generate complex composite shapes when working in Illustrator CS5. Whether you're new to Adobe's popular vector graphics editor or a seasoned graphic arts professional interested in better acquainting yourself with the new features and functions of Illustrator CS5, you're sure to benefit from this free software tutorial. For more information, watch this video guide.
Watch to learn how to make thermite, a compound used to weld railroad tracks together, out of magnesium, iron oxide, and aluminum powder,
In the ongoing search to find better ways to use antibiotics, an extract made from maple syrup has some surprisingly important medical benefits.
A rose by any other name may smell as sweet, but one annoying invasive weed may hold the answer to treating the superbug MRSA. Researchers from Emory University have found that the red berries of the Brazilian peppertree contain a compound that turns off a gene vital to the drug-resistance process.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to work with stereoisomers, enantiomers, diastereomers, constitutional isomers and meso compounds in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to determine the empircal and molecular formulas of a substance given percent composition. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.
Have a Playstation game, or any other disc, that just won't play? In this how-to video, you'll learn how to repair damaged and scratched optical media (e.g., DVDs & CDs) using sandpaper and rubbing compound. Check it out.
