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.
Learn how to primitively dry meat to make jerky for use in long term wilderness survival. You cannot always eat fresh meat. Drying meat into jerky is also good for traveling light as it dehydrates it into a lighter substance. Making jerky is also a cool thing to do while on long term hunting expeditions or safari.
Stuff veal to add moisture and substance to your meal. Veal should be cooked more like poultry than beef. Make your favorite stuffing and allow it to cool before addressing the veal. Be careful not to overstuff the veal breast. Finally, tie it shut with cooking twine, season and cook.
Wheat is not just for eating, it is a great substance to make glue to paste different types of shells. These shells by the way are not seashells. In a pan and in a bowl put an equal amount of water in each. For example, if you have 1 1/2 cups of water in the pan; put 1 1/2 cups of water in the bowl. You are going to bring the water in the pan to a boiling temperature and you are going to add flour to the water in the bowl and dissolve it. The consistency of the flour and water should be that ...
How to cure your tomato plant of the dreaded horn worm
No dinnertime meal beats chicken, and this classic roasted chicken should be at the top of your recipe box, because it's so delicious and juicy that you're going to want to cook it everyday. See how to cook this classic roast chicken.
Already a powerhouse for its graphic design tools, Adobe is making a run at the 3D content creation realm dominated by Unity and Epic Games by acquiring software maker Allegorithmic.
Protecting your home from water sounds like an easy enough task. It's only water, right? Well wait long enough and you'll find out that water always wins. Whether it builds up in your walls or in your basement, some sort of damage will arise due to the wet substance. But there are ways to hold back the water in order to protect the very space you live in.
In this Outdoor Recreation video tutorial Dave from 'journey the outdoors' explains how to make a bench shooting bag. This is used by bench or week-end shooters for recreation purposes. For this you will need an old sock. Take one that you don't use anymore and preferably a tight knit sock. Then fill it with rice and tie the open end of the sock. You can also fill it with beans or some other such substance. Rice and beans being bigger than sand, there will be more air in the bag and it will a...
How much air is actually inside a packing peanut? There is a simple experiment to conduct to see what is leftover. To begin, pour 200 ml of acetone into a glass container and add approximately 1800 ml of packing peanuts. Stir with a wooden spoon to dissolve. The video's author starts with the 1800 ml and realizes that that isn't enough. He then keeps adding until he has added an entire large bucket to the original 200 ml of acetone. After all are dissolved, all that is left in the glass conta...
In this Home & Garden video tutorial you will learn how to make a concrete counter top mold. Fu Tung Cheng from Concrete Network presents this video. For making different edges on your counter top, a compound called polyurethane is used for making the mold. It is a two part compound mixed together to form a rubbery substance. While using polyurethane follow the manufacturer’s recommended dosage, time, proportion and also use the recommended release agent. Take a piece of the molding wood and ...
This video shows you how to calculate the percentage yield in chemistry. To find the percentage yield, you will need to divide the actual yield by the theoretical yield. Then, multiply it by 100: i.e. % yield = actual yield/theoretical yield x 100. An actual yield is the amount of a substance produced in an actual laboratory experiment. It is based on an actual physical measurement of a quantity. The theoretical yield is the yield as is calculated on paper: i.e. through calculations. Therefor...
The way to convert 0.300 Moles of water into Grams is to start by writing what you have. Then put grams on top and moles on the bottom, then put one by the mole, the omler mass goes by grams. Now you figure out the moler mass of water which has 2 H and 1 O, its 2 times 1 which is the atomic mass for hydrogen plus 16.0 for oxygen which gives a total of 18.0 g/mol. So then you insert the 18 up by the grams, now you can cancel out the moles and multiply 0.300 times 18.0g and it gives you 5.40 g,...
snow mold occurs in round patches of grass in the lawn. The patches contain a fussy substance (the mold), that appears in grey or pink; the most dangerous of the two. Mold is formed whenever a lot of snow is left on the lawn for a long period of time, this causes the mold to grow underneath. Late fertilization with a lot of nitrogen promotes mold. Dead grass or thatch can cause mold to develop. Gently raking allows airflow into the grass and promotes new grass growth. The putting down of gras...
JohnnyRawAppleseed demonstrates a delicious dish of raw vegan tuna pate. This is healthy and delicious. You will need some sunflower seeds, lemon, dill, oil, salt, parsley, onion, celery and pickles. Chop all of these up, throw them into a blender, add roughly one to three tablespoons of raw tuna, and you will then blend to a fine mushy substance. This is ideal for spreading or using as a topping, even throwing onto a sandwich or a salad. Crackers, toast and various chips can also be used. So...
Things you'll need: A quarter of Squash, sliced 1cm X 5cm X 4cm Half a bundle of String beans (long), cut 2 inches long 1 bundle Okra, cut into 2 3 Eggplant, cut into 8 parts 1 bulb Onion, sliced 4 cloves of medium
Shiny marble floors practically scream "wealth and substance"—so if you want your marble floor to scream it too, it's time to get shining.
Watch this video tutorial to see how to make extremely simple scales. This scale is useful when you want to weigh small portions of a substance (like a few grams of powder). It is difficult to get real weight using these scales though. To make this homemade scale, you'll need a plastic bottle cap, a plastic bottle or box, a 9v battery, clear sticky tape, glue for the plastic (epoxy or fast-hardeneing), scissors and a screwdriver.
You've manage to get your hands on some ruthenium, and now you want to destroy the hard silvery-white metal of the transition series. Well, you're going to try all kinds of ways to dissolve this odd metal, but the only successful way to dissolve ruthenium is with a common household cleaner… bleach.
The heart needs exercise just like any other muscle. Live longer and healthier by pumping it up! You Will Need
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.
Oobleck is a cool substance that is not quite liquid or solid. Don't believe me, then try for yourself!! All you need is a couple of household ingredients!!
Water is such an essential substance for so many facets of life. Why not experiment with it? This experiment will teach you how to create a water display like those Japanese water falls.
Have you ever wondered if you can really ever beat addiction fully? If you've ever been addicted to a substance, it is so easy to become addicted to something else.
In this video, we learn how to make slime for under 5 dollars. You will need: a large pan, gallon of water, food coloring, and 1 c corn starch. Mix in warm water and continue to mix until everything is well combined. Keep adding more water to corn starch until it's the consistency that you would like. After it's hot and a slimy substance, add in some food coloring that you would like. After this, pour the slime into individual containers and allow it to cool so you can use at a later time. Wh...
In this tutorial, we learn how to create an erupting volcano. First, take ammonium dichromate and pour it into a clear plastic dish. Next, grab a blow torch and blow it onto the material. This will make a substance that is black and looks like ash. This will get messy, so make sure you have a newspaper or cloth underneath the dish. Eventually, the material will catch on fire so you can remove the blow torch, then the ash will fall all around the volcano and the sparks will fly out of the midd...
The era of smartglasses designed for consumers has officially begun, as shipments of North Focals began arriving at its stores this week. And the company now has plans to expand its retail footprint.
Everyone loves a magic trick, especially when you wow them with a seemingly normal object. In this trick, take a regular coin and make it disappear and move around magically! Soon, you will be the hit of every party!
A gold-medal winning entry into the iGEM synthetic biology competition could change the way we look at Esherichia coli, the bacteria better known as E. coli.
Cotton candy is a treat generally reserved for carnivals, fairs, and other events that don't come around often enough. Through some clever construction and about $45 in materials though, you can have all the sugary substance you could ever want with this awesome DIY cotton candy machine. All you'll need to construct your own are two dollar store stainless steel bowls, a fan motor, a few odd screws and bolts, a drill, and a propane torch. Check out the tutorial video below. As an added bonus, ...
Sodium (chemical symbol Na) is an interesting element. It reacts in contact with both oxygen and water, and several sodium salts are used to produce a yellow color in fireworks.
You can find chili peppers in practically every cuisine. From the sweet Italian variety to the spicy Thai bird's chili and the smoky Mexican chipotle, peppers are ubiquitous and universally loved. But if you find the range and scope of these little fireballs overwhelming, you're not alone.
Apple recently scored a patent (number 9,488,488) to create augmented reality maps, hinting at possible AR integration into the iOS Maps application for iPhone. Does this mean we'll be seeing super visionary projections of places in the app in the near future? Maybe.
Most wood furniture is long-lasting, durable, and resistant to great wear and tear over the years. However, set a single sweaty, wet cup or bottle on the surface of your favorite wood dining table, or your prominently placed wooden coffee table, and you'll end up with a round water ring stain that is difficult to get rid of.
If you're lucky enough to have a dishwasher, you probably use that sucker to clean everything (minus your good cooking knives), and maybe even to cook your food, too. However, dishwashers are not without their faults. Dishes can still come out spotty and even with chunks of food on them, which usually leads to some hand-washing afterward.
Whether you've watched Game of Thrones or read the A Song of Ice and Fire series by George R. R. Martin, you probably know the White Walkers (aka the Others) all too well. They're creepy, otherworldly humanoids shrouded in icy white skin and ice-blue eyes. They are not to be confused with the wights, the reanimated corpses that the White Walkers control.
The months of constant snowfall and freezing temperatures seems endless once the excitement of the first snowfall fades, and you become weary of traversing black ice and other slippery streets.
Salt is a miraculous substance. From the Ancient Egyptians to the Christian Bible, many cultures believe it to have mystical powers that can ward off evil, among other things.
Every now and then, you'll bite into the end piece of a perfectly good cucumber only to get an unwelcome bitter and acrid taste. This happened to me for years, no matter how carefully I selected my cukes, although I generally had better luck with ones I got from local growers and the farmer's market.
It's not enough for me to just listen to a mindless EDM song that can be retooled as a torturing method for Guantanamo Bay. As an actual fan of music, I yearn for substance and depth. Artists like Morrissey, Kurt Cobain, and John Lennon impacted lives with not only their music, but the subject matter of their songs.
