It is hard to represent our spherical world on flat piece of paper. Cartographers use something called a "projection" to morph the globe into 2D map. The most popular of these is the Mercator projection.
Every map projection introduces distortion, and each has its own set of problems. One of the most common criticisms of the Mercator map is that it exaggerates the size of countries nearer the poles (US, Russia, Europe), while downplaying the size of those near the equator (the African Continent). On the Mercator projection Greenland appears to be roughly the same size as Africa. In reality, Greenland is 0.8 million sq. miles and Africa is 11.6 million sq. miles, nearly 14 and a half times larger.
Have you thought about buying stock in a certain company but just didn't have the cash to make a trade? Or perhaps you heard news about a company and though to yourself that the stock price was poised to rise? Or maybe have you have always just wanted to know more about picking stocks? Thanks to virtual stock exchange technology, stock market simulators (aka stock market games) that let you pick securities, make trades and track the results, all without risking a penny. This can be a useful simulator for learning and teaching about how the market works. Start with $100,000 in virtual cash and put your trading skills to the test!
Proofread your text and check for repetitive words, passive voice, cliches, readability issues, and more. DraftMap also comes with an extension to proofread your Gmail messages before you send them.
This summer, get outdoors and explore Utah's beautiful mountains. AllTrails is a great app for hikers, backpackers, and mountain bikers, with the largest collection of detailed, hand-curated trail maps so you can hit the trail with confidence.
This collection of math games is where logic and thinking meet entertainment, with a lot of challenges that will make you forget you're getting a mental workout!
This is a repository of formulas from all types of mathematical, engineering, and scientific fields. Browse the formulas on ƒxSolver as a reference, or use the calculation tools to solve your problems.
Edabit is a programming tutorial site that goes beyond teaching basic syntax, and focuses problem-solving skills and how to "think like a programmer." Instead of just showing beginners how to code and stopping after basic syntax, Edabit encourages users to actually make stuff.
Sort My List is an example of a tool that does one thing and does it well. Copy and paste your list into the app, and arrange it how you want. You can also clean it up, find and replace text, change cases, and add different separators if you use multiple columns.
Ever find a leaf and wonder about the tree it came from? Leafsnap is a series of electronic field guides being developed by researchers from Columbia University, the University of Maryland, and the Smithsonian Institution. The free mobile apps use visual recognition software to help identify tree species from photographs of their leaves. They contain beautiful high-resolution images of leaves, flowers, fruits, petioles, seeds and bark.