How To: Fold a Pentakis Dodecahedron
Math Craft admin Cory Poole provided quite a few recipes for sonobe models in his blog, and I followed one to make the pentakis dodecahedron here.
Math Craft admin Cory Poole provided quite a few recipes for sonobe models in his blog, and I followed one to make the pentakis dodecahedron here.
LEVOGYRE 65 points (15 points without the bingo) Definition: turning toward the left [adj]
In this experiment, we're going to get Mn2O3 (manganese(III) oxide) from MnO2 (manganese(IV) dioxide). Mn2O3 forms brightly red or a dark red colored crystal. It is used in Li-ion batteries, since (in a form of a crystal) it conducts electricity (much like MnO2).
LONDON: Bad at maths? Gorge on chocolates before you attempt your next examination. A new study has revealed that eating chocolate could improve the brain's ability to do maths as well as boost your energy level.
Want to prevent future wrinkles with minimal effort? Sleep on your back. Studies show that sleeping on your side increases wrinkles on your cheek and chin, and sleeping facedown gives you a furrowed brow.
Back in the '80s, NASA and the Associated Landscape Contractors of America did a study where they discovered which houseplants were the most effective in purifying the air in space facilities. Though you may not be living in a rocket ship, you can definitely benefit from having one or more of these plants in your home.
An essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. Commonly used for aromatherapy purposes, essential oils can also be used to remove sticker gunk, make your room smell nice while vacuuming, concoct DIY toothpaste, deter rodents from hanging out in your house, and more.
Gun shots, dog mauling, compound fractures, partially severed limbs... Sometimes direct pressure isn't enough to cut the blood loss. This U.S. Army field instructional is a fascinating and thorough medic's walkthrough. Learn exactly how to apply a lifesaving tourniquet to an injured limb. No first aid poster can compete with the unmistakable deadpan of a military issue instructional. Only the American Army could deliver such eyewitness first aid advice. Bookmark this. If you're ever stuck bet...
This collection of instructional videos from BaseballRox will help you develop your running mechanics in the sport of baseball. These baseball videos are aimed to help young players and coaches improve their performance on the field. See how to run the bases in baseball.
This collection of instructional videos from BaseballRox will help you develop your running mechanics in the sport of baseball. These baseball videos are aimed to help young players and coaches improve their performance on the field. See how to take a lead off base and steal bases in baseball.
This collection of instructional videos from BaseballRox with Max Luckhurst will help you develop your outfield mechanics with cutoffs and relays in the sport of baseball. These baseball videos are aimed to help young players and coaches improve their performance on the field. See how to practice outfielder's cutoffs and relays in baseball.
This collection of instructional videos from BaseballRox with baseball player Max Luckhurst will help you develop your infield mechanics in the sport of baseball. These baseball videos are aimed to help young players and coaches improve their performance on the field.
It's Monday, which means once again, it's time to highlight some of the most recent community submissions posted to the Math Craft corkboard. I also thought we'd take a look at building a sliceform model of a hyperbolic paraboloid.
Insecticides are widespread products which are used daily in our lives. Organophosphorus is the main compound in these products and has toxic effects on our health that may be fatal in some cases.
The Javorek complex - what is it? It's an exercise for your shoulders. Men's Health gives you a perfect demonstration of how the "Javorek complex" is supposed to be done. This is an all-round shoulder exercise.
The only way to gain strength in your arms is to work them out. And this "dumbbell tricep extension" from Men's Health is just what you need. This exercise is aimed at isolating the triceps muscle of the upper arm.
Target your posterior chain muscles. In this video from Men's Health, see a leg workout called the "single-leg squat touch down". This squat targets the muscles of the posterior chain, the glutes, hamstrings, and lower back.
This collection of instructional videos from BaseballRox will help you develop your infield mechanics in the sport of baseball. These baseball videos are aimed to help young players and coaches improve their performance on the field.
The Interactive Lab Primer (ILP) has been developed as part of the Royal Society of Chemistry Teacher Fellowship Scheme, one of the themes of the Chemistry for Our Future program, and initiative which aims to secure a strong and sustainable future for the chemical sciences in higher education. The aim of the ILP is to address the diverse range of experience and skills students bring with them to a university by offering a resource to support their transition from school to the university chem...
The Interactive Lab Primer (ILP) has been developed as part of the Royal Society of Chemistry Teacher Fellowship Scheme, one of the themes of the Chemistry for Our Future program, and initiative which aims to secure a strong and sustainable future for the chemical sciences in higher education. The aim of the ILP is to address the diverse range of experience and skills students bring with them to a university by offering a resource to support their transition from school to the university chem...
All-Star Harold Reynolds shows the proper techniques for stealing, running the bases more effectively and mastering the base paths! Baserunning is a valuable skill for earning runs and stealing bases. Steal and run the bases with Harold Reynolds.
This four-part guide presents an introduction to physically-based rendering in Houdini 10, covering what PBR will and won't do for you, sampling settings, environment lighting, objects as lights, shaders, issues with specular highlights. Whether you're new to Side Effects Software's popular 3D production program or a seasoned graphic artist just interested in better acquainting yourself with the application, you're sure to be well served by this free video tutorial. For more information, incl...
This CAD software tutorial covers how to make face based families, change a family category, and make voids in Revit Architecture. Face based families are pretty handy for a few reasons. a big one though is that they do delete when you erase the host object (this is not the case with wall based and floor based) families. Also face based families are easy to move around, re-host and rotate. See how to create and work with face based families in this Revit Architecture tutorial. Create and use ...
On MLB channel, Rickey Henderson shares some base-stealing secrets with Barry Larkin and Harold Reynolds. Henderson has a record for stolen bases. It requires speed, agility, good judgment and decisiveness. Steal bases with Rickey Henderson.
Summertime is a sad time for your beloved snowboard, languishing in the closet waiting for snow. Did you know that your base can become dried out from all that downtime? Watch this video to learn how to store your snowboard safely. Store your snowboard in summer & prevent base damage.
This clip presents a walkthrough of how to go about creating a particle based explosion in Houdini 10. Whether you're new to Side Effects Software's popular 3D production program or a seasoned graphic artist just interested in better acquainting yourself with the application, you're sure to be well served by this free video tutorial. For more information, including detailed instructions, take a look.
This tutorial will show you how to use FunFX, a free, open-source, and Ruby-based automated testing framework for Adobe Flex applications. Watch this video and learn how to drive a Flex application through a web browser. Use FunFx, a Ruby-based testing framework for Flex.
Handbag TV’s make-up guru, John Gustafson shows you how to create the perfect foundation base Create the perfect foundation base.
This tutorial will talk you through installing base boards. Installing base molding adds dimension to baseboard. It protects baseboards and it is easy to replace. Remove the old molding. Four techniques will be discussed about different cuts you will have to make. 1) end of run 2 )mid-run joint
This collection of instructional videos from BaseballRox focuses on the big three footwork positions for the catcher. Coach Luckhurst explains the Big 3 footwork, the jump-shift, the rocket throw and much more as a catcher in the sport of baseball.
Love the lobster, but also love the pasta? That's okay, because you can combine the two for dinner tonight with this delicious recipe for Festive Lobster & Mascarpone Ravioli with Truffle Butter. It sounds like a lot, but seriously, you can't say no to this dish. If you like lobster like you say you do, and you like pasta, you can't pass the opportunity to try out Roberta Dowling's dinnertime masterpiece.
302 introduces a new physically based daylight sky and sun model. Learn how to create a realistic sun automatically. modo 302 is a service update, free for all modo 301 users. Create physically based skies in modo 302.
Prefer a clear, hand-rubbed, "antique" finish to the shiny or satin sheen of varnishes? Then you will want to use a tung oil-based topcoat applied over an oil-based stain when you are staining or refinishing your special piece of furniture.
Staining wood is an exciting and fun step in your refinishing process. Staining brings out and enhances the patterns in the wood grain and it unifies an overall color. At this stage your project piece begins to look more finished. Allow enough time to complete this task from start to finish to ensure continuity of color. You have the choice of using either water or oil-based stain, and each offers advantages and disadvantages.
Throwing a runner out is harder than it seems. The catcher has to be quick and immediately responsive to get the runner out. Take a look at this instructional video and learn how to throw a runner out at third base in baseball. Throw a runner out at third base in baseball.
Broad-based leadership is important to the success of a venture. Though everyone cannot have every skill, it is important to bring together a leadership team that has both a broad and deep set of experiences. Still, people should be hired more because they are passionate about what they do and willing to work hard, than just experiences. Value broad-based leadership & experience.
A French press isn't just for your morning coffee - you can use this tool to make espresso infused vodka. Just replace the water with vodka, and let it steep for about ten minutes. Then press, drain and now you're ready to make your own espresso martinis! Mak an espresso infused vodka for coffee based drinks.
This video shows you how to create a simple animated GIF in Photoshop: first as a frame-based animation, then as a timeline-based animation. You'll also learn how to manage animation options and settings. Check out this video created by Russell Brown now! Use the Animation palette in Photoshop CS3.
As many of you Null Byters may know, I was planning on writing this article a week or two ago. Better late than never! So, let's get right to it then—choosing the right Linux distro for your needs.
Although a little jumpy, this CAD software tutorial covers using a line based family to make a parametric awning in Revit Architecture. As the line is drawn longer you get more awning members. It covers using formulas in families as well as nesting one family in another in Revit. Watch and learn how to create line based parametric arrays in Revit Architecture. Knowledge of Revit is necessary to really follow the tutorial. Create line based parametric arrays in Revit.