A hemisphere is sphere that has been cut in half. When you cut the sphere in half you are left with the great circle, plus half of a sphere. This fact can be used to find the area, and the volume of a hemisphere. The video works several example problems in which the area and volume of a hemisphere is calculated.
The sector area is a section of the circle. You can think of it as finding the area of a pizza slice instead of the entire pizza.
Popsci has posted 2009's most amazing scientific images, and there's quite a few great ones in there. A few of our favorites below, click through for all 62.
Everyone remembers the day Tupac Shakur sadly passed away at the hands of gunfire, but his memory and music live on, and so does his ruggedly handsome look, which you can recreate in a 2Pac portrait. Merrill K shows you how he draws Makaveli in this drawing tutorial, so grab your art supplies and follow along. Pause the video when needed.
In this video, we learn how to create a black eye with cinema makeup. First, you will need black makeup, black eyeliner, and a sponge. Start out by applying purple shadow with a flat brush on the sockets on the bottom of the eye. Apply this down until you reach the top of the cheekbone. Start to pat on a light dusting of black eyeshadow on the same area. After this, start rubbing purple and pink colors into the cheek area and dark brown on the top of the eye. After this, rub the purple on the...
Vanessa from Tekzilla Daily gives us a very helpful video guide on how to edit or tweak icons in the system tray on Windows 7. Typing "notification area" in the search box of the Start Menu calls up the Notification Area control panel. This control panel shows the different processes and programs that are on the system tray. It is where you can edit the settings for each process or icon, with options of "always appear, never appear or show up only when needed". You can also control the basic ...
This tutorial is a step by step guide on how to make maps for Team Fortress 2 (part of the Half Life 2: Orange Box) using Steam's Hammer program. Topics covered include:
Dragons are very popular storybook characters, especially with the release of "How to Train your Dragon" in movie theatres. Check out this tutorial and learn how to draw your very own fire-breathing buddy!
Isn't it annoying when you kiss your hubby and lose all your lipstick? I'm sure they aren't thrilled about suddenly wearing your shade either. Check out this video for tips and tricks on how to keep your lipstick on even when you are getting hot and heavy!
This video from Your Teacher is one of a range of math solutions. (which is the measurement from the center to the edge when drawn in a straight line) and also the area of the circle, is the amount of total space within its perimeter. The circumference of this circle is 20 pi. The circumference is 2 pi r. So 20 pi is 2 pi r. Which factors down to show that 10 is the radius (10=r). The area is pi r squared. As we know the radius is 10, we can work out the area - 100 pi.
Playing golf could be a pain if you don't know all of the basic rules, tips and etiquette associated with the sport. You could find yourself off the fairway (and not on the green, if you know what I mean), or you could find yourself getting kicked out of the golf course for greens damages or unsafe practices and you could find yourself merely being the worst golfer with a club in his hand.
The Mechanic character class is now live in Global MapleStory (GMS), the international version of Nexon's popular free massively multiplayer online role-playing game. Celebrate the release by building a super-powerful Mechanic to call your own! No idea how to invest your skill points? No problem! The build guide excerpted below eliminates the guesswork, permitting you to focus on what matters: playing the game.
If the name Leroy Jenkins elicits a reaction from you, then you are old enough to remember the iconic title World of Warcraft from its heydey (whether or not you actually played the massively multiplayer online role-playing game).
After North cut the base price of its Focals smartglasses, Vuzix is now testing the waters of a lower price point for its Blade smartglasses.
The marketing team for Marvel Studios is doing "whatever it takes" to make sure you see Avengers: Endgame when it hits theaters in a couple of weeks, including offering an updated set of augmented reality Playmoji for the Playground app on Google Pixel.
Although Apple's Animoji game is strong, as recently exampled by its Ariana Grande collaboration, Google isn't slacking either, unleashing a far more immersive music experience for smartphone users.
On Friday, at IFA 2018 in Berlin, Samsung invited attendees into the residence of Family Guy's Griffin family to learn all about its "smart home" products via augmented reality.
Just in time for the release of Pixar's highly anticipated sequel, AR Emoji based on characters from The Incredibles 2 have arrived for Samsung Galaxy S9 and S9+.
Apple's lead marketing tool for the iPhone X, 3D Animoji that you control with your facial and head movements, are once again in the spotlight in a new commercial the company posted on its Korean YouTube account this week.
As if its users weren't already having enough fun with dancing hot dogs and face effects, Snapchat is upping the ante with a new kind of shared augmented reality content.
Although expected to be only a modest upgrade over the S8, we can't help but be excited about the Galaxy S9's unveiling late next month. Among the many rumors and questions we're looking to see addressed, one of the biggest queries we have is, of course, with the price tag. We might not have to wait a month for the goods, however, thanks to a new pricing announcement out of South Korea.
Facebook may have shamelessly copied Snapchat and its camera effects for faces (as well as its World Lenses), but it might beat its social media competitor to virtual body augmentation.
Augmented reality developers are rapidly bringing science fiction tropes into the real world, with the latest example leveraging the TrueDepth camera on the iPhone X to emulate the cloaking technology made famous by movies like Predator and Marvel's The Avengers.
Do you know when you're going to die? Your iPhone or iPad does. That's the premise behind Death Mask, an experimental app developed by Or Fleisher and Anastasis Germanidis.
Two characters from the popular sci-fi animated comedy Rick and Morty have already made their way into augmented reality courtesy of ARKit experiments. Now, it's possible to become one of them on the iPhone X.
An AR/VR developer has managed to use the iPhone X to transport players into an emulation of the classic '90s video game Star Fox as the game's antagonist.
Despicable Me 3 is coming to theaters this summer, and it seems that Minions are everywhere. Literally. You can't even escape them on social media because they've taken over Snapchat with the release of three augmented reality lenses. That's right, this new AR feature means that there could be Minions in your flower crown.
There is now another way for doctors to use augmented reality in operations. This time, it's for plastic surgery — Specifically facial surgery.
The infamous iPhone 8, or iPhone Edition, may take longer than the anticipated September release date due to manufacturing complications of the 3D Touch modules equipped with AMOLED panels.
A market research report, posted on February 27, 2017, forecasts that the image recognition market will grow to nearly $40 billion worldwide by 2021. The market, which includes augmented reality applications, hardware, and technology, generated an estimated $15.95 billion in 2016. The report estimates the market to grow by a compound annual growth rate of 19.5% over the next five years.
With fragrance-filled sprays, scented candles, diffuser sticks, and other air-freshening products, the scent lasts just a few minutes and doesn't always mask what you were hoping to cover up. When it comes to the bathroom, scented toilet paper might sound like a terrible (and silly) idea, but it's best at eliminating stinky smells over a long period of time.
Bearded women are typically more freaky than scary—yet when it comes to American Horror Story, nothing is as it seems.
Facial, voice, and hand gestures are the way of the future for controlling our devices, and even gaming consoles like the Xbox One have incorporated them. Unfortunately, our Nexus 7 tablets have not. We're currently limited to using soft keys for most actions, but we can inch closer to the future by replacing one critical action with a simple touch gesture—going back.
First thing you need to do is clean the area you are going to wax. DO NOT USE LOTION. Use soap and water then dry the area.
Unfortunately, there are plenty of situations where having a can of pepper spray could come in handy. Even worse, in most of those situations your state of mind isn't really conducive to remembering important details like the facial features of the person who's trying to mug you, which means the police will have a harder time catching the culprit.
Remember going to the doctor when you were a kid? If the word 'traumatizing' comes to mind, you'll love the RoboDoc by MarkusB, a robotic doctor that makes checkups a little less scary (and a lot more fun) for kids. It all started when Markus took his 14-month-old daughter for a checkup. The finger clip that the doctor used to check her pulse terrified her, so Markus decided to build a heartbeat monitor just for kids that's much more likely to make them laugh than cry.
In this how to video, you will learn how create glowing eyes in the darkness using Photoshop. First, open your image in Photoshop. Next, duplicate the background layer. Go to hue and saturation and make the image really dark by turning down the lightness and saturation. Next, select a paintbrush for the eraser and start erasing around the eyes. Once this is done, make a selection around the pupils. Create a new layer and paint the selection red. Next, lower the flow of the paint brush and cho...
Photoshop is the perfect program to use when you want to make adjustments to photos you have taken. You can really make a sky pop in any of your pictures by using Photoshop to manipulate the color by following this tutorial.
Learn how to use an airbrush. Marble allowed Michelangelo to create his David. An airbrush will allow you to draw a dragon on a conversion van.
In order to create 3D lettered signs in lights, you will need to first create an object. Open Illustrator. Type your letters on the page. Adjust the font to the style you would like. Click on "effect". Then, click on "3D". This will allow you to rotate the image for the angle that you will want to see it at.
