Density

How To : Find density using the water displacement method

To find out the density of any given object there is a simple equation, mass divided by the volume equals the density. In this video a lady is showing how to get the volume of three objects using water. First the objects are measured on a scale to find out how much they weigh, ...more

How To : Determine the density of salt water

Everyone floats in the Dead Sea because the amount of salt in water effects the density. Do a hands-on experiment and practice checking density. Here’s a good science experiment to do in class or at home, if you have access to an electronic balance. The density of salt water ...more

How To : Make a colorful density bottle

Watch this video tutorial to see how to make a colorful density bottle. To do this science lab experiment, you'll need food coloring, a plastic bottle, clear baby oil and extra things to put into the bottle, like glitter or sparkles. Now, keep in mind, you can't drink this... ...more

How To : Calculate and solve for density

Density is a means of representing how much mass is contained in the body of an object. The basic formula is: Density (D) = Mass (M) / Volume (V) so D=M/V. Density is important to know for buoyancy and to understand how heavy an object is. This video will show you three exampl ...more

How To : Perform the activity density rainbow experiment

Check out this instructional science video that demonstrates the details about the activity density rainbow. From the Oregon Museum of Science and Industry's teacher curriculum, "No Hassle Messy Science with a Wow", this is an activity demonstrating liquids with different dens ...more

How To : Prune a high-density fruit tree

In this how-to video, Ed Laivo and Tom Spellman of Dave Wilson Nursery give you advice on how to prune high-density fruit trees as they look at Santa Rosa plums, pluots and nectarines in their own orchard. Watch this video to learn how to open your trees up for sunlight and ai ...more

How To : Find the density of an object

School yourself on density with help from this video courtesy of Kruse teacher. In this tutorial, get a quick demonstration on the subject of density, mass and volume. Also learn how to find the density of two different kinds of objects through the power of math!

How To : Understand & calculate density

In this episode of Science Theater Dr. Carlson helps you understand the concept behind Density and how it relates to Mass and volume and how to calculate the Density of a substance if its Mass and Volume are known. The Density of various metals is demonstrated using aluminum, ...more

How To : Work with point density volumetrics in Blender 2.5

This clip offers a quick guide on how to work with point density volumetrics within Blender 2.5. This same technique can be used to make tornados, drifting fog, dry ice and a great number of other things. Were you aware Blender 2.5 includes a cloud generation script? See how t ...more

How To : Use neutral density or ND filters

Photography is a fast growing hobby with the relative drop in prices of high grade equipment. The use of different filters in photography is a very common thing, and different filters have very different uses. The neutral density (ND) filter reduces the amount of light reachin ...more

How To : Calculate density altitude when you are flying

In flight school, at some point or another you will be asked to determine your density altitude. In this professionally taught tutorial, lean how to calculate density altitude on a flight computer. This lesson is taught by an instructor from the Golden State Flying Club at Gil ...more

How To : Experiment with double density

Can you guess which household liquids sink and which ones float? Play along with the A-TV science team in this video lesson! 1. Do a Liquids Mix Experiment: First thing you are going to do is take a glass beaker and pour some water into it. If you don't have a glass breaker, ...more

How To : Use neutral density gels to change light intensity

The SubStream's "Film Lab" provides valuable information for filmmakers, specifically cinematographers and gaffers, on how to use neutral density gels. Gels are used to change the quality or color of the light in a scene. Gels can come in many different sizes: they can extrem ...more

How To : Use gain and neutral density on a video camera

A common problem when shooting in low-light situations is that even if you open your lens to its lowest f-stop number, you're left with an image that's far too dark. One obvious remedy is to add more light. But what if you don't have more lights available to you? That's where ...more

News : What Happens When You Mix Coca Cola and Milk

Interesting reaction coke and milk The reaction of phosphoric acid (V) to proteins in the milk - they are cut and causes a precipitate The reaction of phosphoric acid with calcium contained in milk gives rise to a precipitate 3Ca + 2H3PO4 ///\\\ Ca3(PO4)2 + 3H2 It is a reacti ...more

How to Hack Wi-Fi : Automating Wi-Fi Hacking with Besside-ng

Besside-ng is the hidden gem of the Aircrack-ng suite of Wi-Fi hacking tools. When run with a wireless network adapter capable of packet injection, Besside-ng can harvest WPA handshakes from any network with an active user — and crack WEP passwords outright. Unlike many tools, ...more

How To : Make Perfect Poached Eggs, Every Single Time

Two slices of whole-wheat toast with lots of butter. Two eggs, poached to a firm yet custardy texture. The yolks should absolutely not be hard-cooked and the whites should be tender, not rubbery. That's my idea of the perfect breakfast. A golden, runny-but-not-liquid yolk, cre ...more

How To : The Specs That Really Count When Buying a Phone

When shopping for a new smartphone, you'll encounter comparisons and spec sheets that are filled to the brim with values like mAh, GB, and GHz. To the average consumer, however, these values are meaningless, so we end up looking at which device has the specs with the highest a ...more

How To : Everything You Know About Microwave Ovens Is a Lie

Chances are that you've been using your microwave just to nuke leftovers, but they can do so much more than heat up last night's dinner—microwaves can help you peel garlic more quickly, get more juice out of lemons, disinfect your kitchen, dry out herbs, give beauty products n ...more

How To : Create a bigger butt and hips using foam

Seldom does a woman want to increase her butt and waist size, but for those who work in theater, a big butt may just be a requirement for a role. However, faux butts and hips will generally rob your wallet of quite a steep amount of money, so why not make them yourself? All y ...more

How To : Build a real lava lamp

This is how to make a near professional grade lava lamp. We did this as a chemistry project. We perfected it in a week. This took many hours to do, as we had to get the density just right. We remade it three times, also. At the very end, we combined all of the wax into a huge ...more

How To : Hide the Home Bar on Android 10 — No Root Needed

With the new navigation gestures in Android 10, you reclaim a lot of screen real estate that used to be occupied by the back, home, and recent apps buttons. But there's still a small bar on the bottom edge of the screen, and in most apps, it still sits atop a black background. ...more

News : Everything You Need to Know About the iPhone XS Max

Three new iPhones means you have to make a choice: Do you go with the smaller iPhone XS, the larger iPhone XS Max, or the cheaper iPhone XR? There's lots to like about each model, but if you want to make an informed decision, it's time to learn what each has to offer. Here's w ...more

How To : 47 Baking Hacks That You Shouldn't Live Without

Right now is that magical time of year when the general public decides to embrace their inner fattie and get baking in the kitchen. Hello, pies and cakes and cookies and everything carbs. Goodbye, diets—see you in the next year, when you cripple us with unbridled guilt and lon ...more

How To : Make Sodium Metal

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. The metallic form has limited uses in chemistry, and is too soft and reactive to be used as a buil ...more

How To : Make a 4-Element Table with PVC Pipe

Now, I know what you're thinking... "I need an extra sexy coffee table that is like no other." OK, Maybe not. Maybe you're thinking, "I need a conversation starter that doesn't have to do with economic injustice, Left/Right political paradigms or health insurance. I need it ...more

How To : Make a homemade bass trap acoustic panel

Learn to make your own super effective bass traps and acoustic panels with materials from your local hardware store, just by watching this home audio video tutorial. Why haven't you heard of a Bass Trap or High Frequency Panel, and what is the difference between the two? A B ...more

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