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.
One of the ironies of gardening is that often some of the smallest pests can create the biggest nuisance. White flies can drain the life out of your plants. You can see the evidence of white fly damage in the lack of vigor in the plant and the discoloration of the leaves. Before they were a rich green and now they've turned a sickly yellow. Learn how to get rid of these pesky white flies with this gardening tutorial.
A raw video shot by Jason McMinn, using a GoPro mounted to a helicopter drone, gives us a look at Apple's new campus, currently under construction in Cupertino.
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.
In its latest feature with an assist from augmented reality in storytelling, the New York Times shows readers the virtual crime scene it constructed to prove that the Syrian military conducted chemical warfare against its citizens.
Growing evidence suggests that neurodegenerative diseases like Parkinson's may develop in part due to environmental factors, including infections that can cause inflammation in the nervous system. New research from investigators from Jude Children's Research Hospital and Thomas Jefferson University has strengthened that connection.
Intense exercise can cause problems with our digestive tract. It even has a name — "Exercise-induced Gastrointestinal Syndrome." Simply put, strenuous exercise can damage the gut and let the bacteria that reside there potentially pass into the bloodstream.
I'm sure I'm not the only one on here that has googled "Why am I always tired?"... and I'm definitely not alone when I say that all of the advice I've found so far is useless:
New Android versions have always been released on a fairly regular schedule—in late Fall, Google debuts a new Nexus device, while simultaneously publishing the next iteration of the world's leading mobile operating system. But things are different this year, as we now have numerous indications that Android Nougat could be released as early as August or September.
Can you tell when your friends are serving up a bunch of BS, or are you constantly oblivious, unsure if they're spinning a valid story? With so many ways to lie and fake information floating around, it can be impossible to tell what's the truth from what's complete BS. Here's how to sort through what you hear and find the real truth.
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.
Apple released the first developer beta for iOS 13.5.5 on Monday, June 1. The update comes on the same day Apple released iOS 13.5.1 to the public, which patched the unc0ver jailbreak, and 12 days after iOS 13.5, which introduced COVID-19 exposure notifications, in addition to other new features.
Although styluses and smartphones have existed together for years, the iPhone has always ignored the pairing. After all, "Who wants a stylus?" But ever since the Apple Pencil made its debut on iPad, the rumor mill has churned out the idea that an iPhone could one day see stylus support. That day will probably come with the release of iPhone 11, and there's a good indicator to make its case.
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.
Recently released accident reports by the state of California's Department of Motor Vehicles show humans did a lot of dumb things to cause accidents with General Motors' (GM) Cruise Automation driverless vehicles in San Francisco this year.
Uber and Waymo's lawsuit is starting to pan out. Following a ruling on Monday, May 15, Judge Alsup, who called Waymo's patent infringement claims "meritless," ordered Uber to perform a series of actions and duties for Waymo. Without further ado, here's what Uber must do to begin to put this lawsuit behind them (well, maybe):
It has been a long road for Uber throughout the duration of its lawsuit with Waymo, especially with a judge who seemed significantly against Uber with almost every argument made. Monday's ruling was, while not necessarily a win for Uber, less punishing than many would have thought.
Welcome back, my greenhorn hackers! Several of you have you have emailed me asking whether it's possible to install a keylogger on a victim’s computer using Metasploit. The answer is a resounding "YES"!
NASA is going going to Saturn's moon Titan, and the space organization is using augmented reality help them do it.
Welcome back, my aspiring hackers and those who want to catch my aspiring hackers! As most of you know, this series on digital forensics is inspired by the motivation to keep all of you all out of custody. The more you know about the techniques used by law enforcement and forensic investigators, the better you can evade them.
Food can smell great before, during, and after cooking. A pot of stew simmering away on the stove will tantalize you all afternoon, and there's nothing better than the smell of fresh-baked cookies lingering in the house for hours.
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.
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.
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.
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.
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.
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.
Find out how everything in a chemistry lab works, from pipettes to burners to recrystallization to storage. You'll get precise instructions on how to work and perform certain scientific duties in the chem lab, whether it's chemical or just ordinary high school science.
