This video shows how to create an infrared heart sensor using an Arduino controller, a couple of resistors, and an infrared light emitter and detector. This device will be used on the subject's finger, detecting the amount of blood which is flowing through the subject's finger. The amount of oxygenation of the blood is shown in the finger, which will cause the infrared light to reflect off the skin and to the transmitter which is close by. The fluctuations of oxygenation are picked up by the ...
In this episode of Digital Photography 1-on-1, host Mark Wallace goes in depth on the subject of light metering and flash balancing. Making use of a Sekonic light meter, Mark shows how to read the light levels in a room, and explains how to interpret those readings in order to adjust flash levels, ISO levels, and alternative light source manipulation. Mark also goes over the important roles that aperture settings and film speeds play when attempting to successfully balance flash and ambient l...
In this Photoshop tutorial, learn how to use the software program to remove tan lines from a photo subject. To complete this editing process in Photoshop, follow the steps in this tutorial to learn how to utilize a layer mask, eye dropper tool, and adjust colors. By following the steps in this Photoshop tutorial, you can tan the parts of a subject's skin by learning how to blend colors within the software program so that someone comes out with a more even skin tone.
Interested in learning how to do advanced green screen tricks to show a subject flying? After this tutorial, you'll be a pro. How to launch: Light the screen and the subject. Frame the subject so that you do not see their feet on the ground. Do this by cutting off the lower 1/3 of the subject. Sell the effect by using a fan from above. Add in a background which works with the flying that you are trying to achieve. How to fly: Have a prop that you can use for effect that can be cut out later (...
In this video, we learn how to understand subject pronouns in Spanish. Subject pronouns are pronouns that stand in for the person that is going to carry out the action in the sentence. In English, sentence pronouns are things like "I", "you", "he", "she", "we", and "you guys". In Spanish, pronouns change to "yo", "tu", "usted", "el", "ella", "nosotros", and more. Whenever you talk about a verb in a sentence, it will change what the subject pronoun is and how it's said in the sentence. Make su...
This two-part chainsaw safety maintenance and operation instuctional video was developed to give chainsaw operators the basic information needed to properly and safely use a chainsaw. Although this program covers a wide variety of subjects, you should always read and fully understand your own chainsaw's operation manual. For more information on using and maintaing chainsaws, take a look.
Apple introduced Portrait Mode with the iPhone 7 Plus, a feature which utilized the iPhone's dual cameras to create a shallow depth of field around a subject. This effect replicates the look of DSLR cameras, making your photos look more professional. Apple, of course, carries Portrait Mode to the iPhone X and iPhone 8 Plus in iOS 11, however, with it comes a twist — Portrait Lighting.
When it comes to working with people, the photographer can face quite a challenge. Everyone has a mind of their own, and with these few tips you will know how to advise your subject so they look fantastic in a picture. Join Erin Manning, professional photographer, as she shows us 5 handy tips for working with people.
Ever wonder how to create movie magic right in your own home? This video shows you step by step everything you need to know and do to create the green screen effect, from properly setting up your green screen, to lighting it, as well as your subjects for a successful effect. Filled with tips and instructions this is a great video to watch for filmmakers, and special effects artist of all kinds.
Depth of Field (DoF) is easy to understand, but it is often extremely poorly explained. It's all about selective focus. For consumers with conveniently small camcorders, you only have two options: get your subject away from the background and then (1) zoom in or (2) get the subject close to the camera. No 35mm lens adapters, no secret techniques, no complex math: That's it!
James Barry teaches us how to take better indoor portraits. When you are taking these, you want to make sure you have the lighting that is directly onto the subject and the subject's face can be seen. You will have to work with the light and often you will have to add in several lights to get the facial features to all show. Work with your camera to see what it sees and how the light looks through the camera. It will take several minutes to get the portrait to come out correctly. Place the li...
Google's much anticipated eBook Store has finally opened. As of today, the digital bookselling enterprise is awaiting your needs, with over 3 million eBooks to read directly on the web or on other platforms, like Android, iPhone, iPad, Sony and Nook devices.
If the subject of your photos has skin imperfections, it is very easy to fix this in Photoshop. If you do not have the time to do each individual blemish, or wish to simply give the skin an overall fresher look, check out this tutorial.
Taking a woman’s portrait isn’t just about photographic skill, it’s about flattery. You will need a single lens reflex camera, a female subject, a backdrop and a hurricane of compliments. Tip: to isolate the subject from the background, use a long telephoto lens at the widest aperture possible, and stand a minimum of 10 to 15 feet in front of the subject making sure she fills the frame.
A Steampunk's Guide to Sex was the subject of a recent successful Kickstarter campaign, and I now hold the finished book in my hands. As such, I can say (mostly) unreservedly that you should buy this book. Allow me to tell you why, before I get into the nitty-gritty about the book itself. Sex is something of an odd topic in America because it's perfectly legal, and yet taboo. Unlike things that are illegal and not taboo, like drug use, murder, theft, etc. What this means is that children can ...
In the studio world, and the ensemble scene, you're going to be handed ALOT of sheet music, sometimes it has only a few notes for a specific melody, and sometimes it's a whole lot of notes for the entire song. Knowing how to read these notes are important, and it can be very daunting at first, but if you practice every day anybody can read. In this video you will learn the basics of reading the notes on the staff with the note names for the treble clef.
In this tutorial, we learn how to isolate your subject to get better photos. If you are taking a picture in an area with a lot of people or surroundings in the background, have your subject stand up on something. After you do this, you can take the shot and have nothing in the picture with your subject but the background. You can also have a child go on a playground and zoom in on them if you are taking a picture of a child. On the playground, you can find tons of spots where the child can be...
Celebrity chef Bobby Flay teaches us to make an elaborate seafood stew. If you really want to impress some open-minded guests and have some experience making your way around the grill, than this recipe is for you. It involves several kind of shellfish, anodouille sausage, and a secret ingredient that even the aforementioned open-minded guests are better off not knowing about: anchovies. Don't be scared, when combined with all of the other ingredients they go from dominating the dish, as they ...
Dropping out of high school doesn’t have to mean the end of your educational career. You can earn a General Education Development diploma, also known as a GED. In this video, learn about the process needed, step-by-step, to get your GED.
Portraits come in all shapes and sizes, but follow a few basic guidelines and you'll set the scene for a beautiful and professional shot.
With significant advancements in the treatment and prevention of HIV, you'd think the stigma surrounding the deadly virus and AIDS, the syndrome the infection causes in the body, would have lessened. Unfortunately, a new project looking at conversations on Grindr — a social networking app for gay, bi, curious, and queer men — has shown that this stigma is very much present.
Kik is an extremely popular messaging app, but it has a few annoying features that we all just sort of put up with. You can't turn off read receipts, nor can you hide when you're typing, and the photos you take with Kik's camera show up differently than ones you send from your gallery app. At least a couple of these features should be subject to change, but they aren't — well, not without some tinkering.
If you're taking a portrait with multiple people, you might end up with different skin tones as the light hits each subject differently. This tutorial shows you how to even out the skin tones for multiple subjects using the retouching tools in Adobe Photoshop CS5.
Creating extremely impactful pictures can all be up to Depth of Field. You can either put more or less focus on your subject with various techniques. In this video you will learn how to determine distance with aperture, focal length, and distance from subject techniques.
Sometimes the background you're using in a photograph doesn't quite match up with your subject and you want something different to highlight whatever you're photographing. There's where Photoshop and/or green screens come in.
This video tutorial, by photoshopuniverse, shows you how to reduce the depth of field after a photo is taken using Photoshop. This enables you to ensure that your main subject is clearly in focus while the background is out of focus or blurry. First duplicate the layer using the short cut that was mentioned and apply the filter lens blur to the new layer and adjust the radius so that an adequate amount of blurring is achieved. Add a layer mask and bring the subject to focus by selecting the b...
To freeze motion in photography, you need three things. First, you need a good camera, triPod, and a subject to photograph. One thing to keep in mind is your shutter speed. For example, if the subject is moving towards you, you want the shutter speed between 1/100th to 1/250th. If you are capturing the subject going from side to side, you want it set at 1/250th or more. Keep in mind that the more you increase the shutter speed the less light you will have in your picture. Next, move the camer...
Three point lighting is the key to MAKING videos look professional. Tom Skowronski, the associate editor of Videomaker, guides us through the process of three point lighting. Three point lighting involves the use of three types of light to create a professional appearance when video taping. First, a key light is used to provide bright illumination of the subject. Then, a fill light cleans up the dark areas on the face. Lastly, a backlight fills serves to separate the subject from the background.
Google's text-to-speech engine is getting pretty good these days. In a recent update, the computerized voice that reads on screen text (like Google Now search results) got an audio quality bump that brought its clarity up to its highest level yet. And with each update, that robotic voice becomes a bit more human.
No matter what kind of business you have, small or big, online-based or not, when you're dealing with email marketing, the number one things your targets will see is the subject line, and if your subject line looks spammy or uninteresting, it's not going to help you one bit.
Want to know what secrets are hidden in the palm of the late Michael Jackson? In this twelve-part video series by Palmistry expert & professor, Peter John, go inside the lines and creases present in the King of Pop's ever-telling hand. You'll be surprised by what Peter John finds!
CNN has compiled a list of the best ten ideas presented at this year's TED conference.
In this video, we learn how to use direct objects & direct object pronouns in Spanish. A direct object is the object of the subject inside of a sentence. An example of this is "yo contesto el telefono". The direct object in this sentence is "el telefono" and the subject is "yo". The direct object is the "what" of the sentence, not the who. Another example of this is "nosotros miramos las peliculas". In this sentence, the subject is "nosotros" and the direct object is "las peliculas". Pay clos...
In this C4D user's guide, see how to light a subject using luminance channels. Whether you're new to MAXON's popular 3D modeling application or are just looking to get better acquainted with Cinema 4D and its various features and functions, you're sure to enjoy this free video software tutorial. For more information, and to get started using this trick in your own Cinema 4D projects, watch this 3D modeler's guide.
This video tutorial by VvCompHelpvV gives you two methods to achieve the Sin City effect in your photos using Photoshop. The Sin City effect is making the main subject of the photo appear colored while the rest of the photo looks black and white. In the first method the subject should be selected using a pen-tool using the settings mentioned. After that right click on the selected areas and make the feather radius 3, inverse the selection and go to image > adjustments and de-saturate and your...
Learn how to recognize some basic Hiragana Japanese characters and the sounds they represent, as well as some very common phrases and how they're written.
Being able to read an electrical diagram will greatly aide your ability to correctly diagnose car problems. If you need some help with it, watch this video for a detailed explanation of how to read an example map for the clutch start switch on a Toyota.
Reading people's minds is something that most inquisitive and sensitive people have wished that they could do at some point. Well, what if you could? This video will show you a great multipurpose bar trick that will allow you to appear to read the mind or body of people in a variety of situations. It's really remarkable how easy this is and how well it works.
Welcome back, my greenhorn hackers! Digital forensics and hacking are complementary disciplines. The better you are at digital forensics, the better hacker you are, and the better hacker you are, the better you are digital forensics. Unfortunately, few people in either profession cross these discipline lines.
The Subject 16 puzzles are part of the subplot to Assassin's Creed: Brotherhood. The first cluster is fairly easy, but just in case you are stuck, this video shows you how to solve them. Choose the right photos, move the pawn and then pick the right dots.
