Want to know how to factor quadratic trinomials in algebra? One easy way is through trial and error. Watch this free video algebra lesson to see how. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this free math tutorial, you'll learn how to factor t...
On this episode of Scientific Tuesdays, Dylan shows you how to create a non-Newtonian fluid using corn starch and a little water. A non-Newtonian fluid is any fluid that does not follow the laws of physics.
To make this origami SST paper airplane, begin with a square. The origami SST (supersonic transport) was designed by Dr. James Sakota. The plane was first featured in the 1960's book The Great International Paper Airplane Book, a documentation of the Scientific American first International Paper Airplane Competition. It won first place for origami/nonprofessional. This plane flies excellently in a fast, long distance glide! Learn how to make the origami SST paper airplane by watching this ins...
When a number is expressed in the form of x multiplied by 10^y such that, x < 10 and y is an integer, the number is said to be in standard form. Standard form of expressing numbers finds its use in scientific and statistical fields. This video demostrates how to express, as well as perform basic mathematical operations namely, addition/subtraction, multiplication and division of numbers in the standard form using four examples/mathematical problems. The first two examples demostrate multiplic...
If you have a love for ninjas, swords, and blood, then you'll love the action-packed game Ninja Gaiden 2. You play an awesome ninja who is capable of doing almost anything while carrying around an awesome sword that he uses to take demons out.
Sometimes there's no better way to factor a quadratic equation than by simple brute-force trial and error. Watch this free video algebra lesson to see how it's done. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
Probability computation is a complex process and even using a calculator can be difficult. But normal probability calculations can be performed quickly with the help of calculator once you know how to use it. So when you have to calculate a probability from a normal distribution you can use the functions on your scientific calculator. You can use the normal CDF function from you calculator to compute the area under a normal curve. The function requires lower band and upper band values, the me...
This a video tutorial that is showing its audience how to mix liquid glow stick colors in order to make a white light. The first step is to gather your supplies. To complete this scientific experiment you will need to get a few different glow sticks, preferably red, blue, and green. The next step is to turn all of your glow sticks on. The third step is to cut open the glow sticks and add them to separate cups. Next you can mix the green and the blue light together. Then finally add the red li...
In this video you will learn how to Get ESET Nod32 or Smart Security forever. First make sure you have the trial for ESET Nod32or Smart Security. To do this go into the description of the video, download that file and put in the trial username and password. The downloaded file its called ESET Box4Ever.Before you extract the file open your ESET window and press F5.Uncheck self defense and restart computer. After you restarted the computer extract the files from ESET Box4Ever and run the file, ...
Learn how to cheat on a calculator test with a calculator in simple steps. You will need: a scientific calculator, a ruler and a small paper. 1. First remove the cover of your calculator and measure its length and width using the ruler. 2. Now cut a piece of paper with the exact measurements taken from the cover. 3. Write all you need on the paper and fix it in the cover carefully. 4. Make sure the paper does not fall out and then put the cover to the back of your calculator. 5. Finally test ...
If you have a fossil, you can tell how old it is by the carbon 14 dating method. This is a formula which helps you to date a fossil by its carbon. If a fossil contains 60% of its original carbon, how old is the fossil? The half life of carbon 14 is 5600 years. That means this is how long it takes for half the nuclei to decay. After 5600 years, if we start with a gram, we end up with half a gram. This rather complex formula shows you how to solve this puzzle using accepted scientific methods.
In this video from Socoolscienceshow, Crazy Chris explains to us how magicians make things disappear. For this he uses a plate, cup, and a napkin. You cover the cup and plate with a napkin. He removes the napkin with the cup and shows that he taped the cup to the bottom of the plate so they are both removed at the same time. To maintain the look of the cup in that napkin when it's removed he shows that he trace the cup onto some construction paper cut it out, and tape it to the napkin. Then h...
In this video tutorial the author shows how to use the Cosine Law. He shows how to find an angle of a triangle where he know all the sides of a triangle, using the cosine Law. He uses a lower case letter to designate a side and a capital letter to designate an angel apposite to that side. He gives the formula for the cosine law using a triangle as an example. Now he goes on and demonstrates how to use a scientific calculate. He shows how to use the degree mode in the calculator to solve these...
The Five Minute Project crew is back, and bringing you six fresh projects sponsored by Craftsman. Break out the tools and protective eyewear and brace yourself for the best how-to videos a DIY-er could ask for. Learn to make Geek-Chic Cuff Links, a Cereal Box Spectrometer and more, all in Five Minutes Time!
NASA has invented the T-RAD Device, a.k.a. Goo Gun. Astronauts aboard the STS-120 will test the effectiveness of the pre-ceramic polymer in its ability to repair damaged shuttle tiles. To make connections to the mission, in this video tutorial, Dr. Diana teaches you how to make your own silly putty, also a polymer, at home.
Want to know what the insides of a cow look like? Well, go no further... these video tutorials will show you the anatomy of a cow reproductive tract, which is suspended by the broad ligament, which has three component parts; the mesometrium (which holds the uterine horns), the mesovarium (which holds the ovary), and the mesosalpinx (which holds the oviduct of the female cow.
News+ is Apple's new digital subscription service for written media that costs $9.99 per month. There is a free trial offered for one month, but you'll start getting charged the monthly fee as soon as your 30 days are up. While it's not very obvious, there is a way to cancel the auto-renewal right before you get charged.
Alzheimer's disease — an irreversible, progressive brain disorder — is the sixth leading cause of death in the US and more than afflicts 5 million Americans. As if those numbers aren't scary enough, the Centers for Disease Control and Prevention expect that number to nearly triple by 2050.
While the Google Play Store is filled with big name magazines like Time, Forbes, Sports Illustrated and Maxim, it also panders to smaller audiences, like with Coin Prices, Soap Opera Digest, Watch Journal and Quilter's World (which yes, is all about quilting). If you have a select few that you enjoy reading, prices aren't usually a problem; issues range from $1.99 to $4.99 for each one, or from $19.99 to $39.99 for yearly subscriptions. If you're someone that is a magazine connoisseur, prices...
Science fairs are some of the most creative moments during the elementary school period. Not only are you able to research a topic of interest, but you also have try to find various ways in which to showyour scientific results. In this case, you'll find out how to make an edible plant cell model for an easy science fair project of for biology class. It's easy to do and will surely attract the attention of your teacher and others. Enjoy!
In this scientific video tutorial, undergraduate students in a forensic chemistry lab demonstrate a forensic DNA test to catch a criminal. Learn how to perform a forensic DNA test! Just like in CSI.
In this scientific video tutorial, undergraduate students in a forensic chemistry lab demonstrate how to perform gunshot residue analysis (GSR). Learn how to perform gun shot residue analysis (GSR)! Just like in CSI.
In this scientific video tutorial, undergraduate students in a forensic chemistry lab demonstrate how to use a comparison microscope for bullet and bullet casing comparisons, and color developments tests for impression marking enhancement (such as for filed-off serial numbers). Learn how to perform ballistics comparisons! Just like in CSI.
In this scientific video tutorial, undergraduate students in a forensic chemistry lab demonstrate how to develop fingerprints using a variety of methods: Cyanoacrylate (superglue) fuming, dusting, and iodine fuming. Learn how to dust for fingerprints, just like on CSI.
Check out this video tutorial on how to streak an agar plate. What's an agar plate? Well, an agar plate is a sterile Petri dish that contains a growth medium (typically agar plus nutrients) used to culture microorganisms. Selective growth compounds may also be added to the media, such as antibiotics.
Despite funding difficulties that forced Meta to place employees on temporary leave in September, the augmented reality headset maker is reminding enterprise companies that it remains a viable option for visualizing and working with 3D design models.
With all the excitement over the Mars rover landing this weekend, you might also want to know that Google has gotten their cameras into the Kennedy Space Center for their largest collection of Street View imagery to date. In total, the explorable facility totals 6,000 panoramic views. The views include the space shuttle launch pad, the towering Vehicle Assembly Building, and a up-close and personal view of a space shuttle's main engine.
In this tutorial, we learn how to cheat the airbrush system when applying makeup. The OCC makeup trial is great for someone who is just getting started as a makeup artist, and doesn't have an airbrush system. You an use this makeup with a nice brush, depending on which one works best for you. You can go from light to full coverage with this makeup, and play around with the colors until you find the one that works best for your skin. If you have a friend with different skin tone, you can split...
It's not so difficult to stay at home during the coronavirus lockdown when there's so much free entertainment to take advantage of. That seems to be the M.O. for many studios and streaming services, as they've made so many shows and movies available to the public for free. That said, they aren't running charities here. These deals won't last forever, so make sure to jump on board before it's too late.
US blood banks have assured the American public that they have the tools to prevent a Zika contamination, despite the rapid spread of the disease.
In most cases, when the free trial of software is over, that's it—you're left to either pay for it or find an alternative. But what happens if the trial wasn't long enough to sell you on the product? It'd be nice if there was a way to test it out again without having to whip out your credit card.
When it comes to subscription-based music streaming services, the conversation doesn't go much further than Spotify and Google Play Music (previously called "All Access"). Both services are essentially the same aside from slightly different catalogues and social options, and they both run ten bucks a month for unlimited music streaming and offline track saving (although Spotify does have a free, ad-supported service).
If you made it all to the end of Dark Souls, you'll need to defeat Gwyn, the Lord of Cinder. He's the last boss in the game. This Giant Bomb guide will take you through what will likely be a lot of trial and error so you can finally kill him.
Virtual DJ is an epic piece of software that allows you to become a disc jockey, without even having to get up from your chair. In this video tutorial, learn how to use the basic functionality of this great application. Download a free trial of Virtual DJ and start mixing.
NASA is going going to Saturn's moon Titan, and the space organization is using augmented reality help them do it.
Homopolar motors tend to be typecast as simplistic in nature, and that's true for the most part. The bare minimum requirements are a battery, conductor, and magnetic field, but when it comes to Valentine's Day, they're nothing short of complex.
This is the ultimate guide to drawing correct human proportions. If you've always had trouble with it in high school art class or in art school, this video condenses all the information into a tight package that's fun and easy to understand. This will uncover all the tricks to human proportions for figure drawings.
C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.
Make a reusable glow stick, glow-in-the-dark-style! Imagine, you'll never have to buy one of those ChemLite's again, because you can reuse this homemade glow stick over and over again. This video tutorial will show you how to make a permanent, reusable glow stick. The materials in this experiment are simple: epoxy resin, straw, and some phosphor powder.
C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.
