http://airandspace.si.edu/exhibitions/
just in case you go back in time and want to be awesome - . - . Nuff said. This made me laugh. A lot. Now you will too. You’re welcome. The Earth – and Its Average Inhabitant – at 7 Billion People (Infographic) According to the U.N. Population Fund, on October 31, 2011, the earth became home to 7 billion people. And the population is growing quickly. Estimates put the planet at 8 billion in another 14 years, which is an eye blink compared to the 123 years it took us to go from 1 billion to 2 billion. That means a weighty impact on our planet. How weighty?
Two World War II reference apps for the iPad Review When I was about 10 years old, I decided it was time to graduate from the Scholastic Reader-approved books of my youth to what I determined was meatier, more adult fare. I checked out a book from the library about World War II—it may well have been one of those Time-Life overviews of the war that doubtlessly make serious historians cringe. But for a 10-year-old it was just the sort of stuff to spark an interest in history that continues to this day. The 10-year-olds of 2012 have more sophisticated tools at their disposal in the form of Apple’s iPad. And that’s given developers a chance to use the iPad’s touch interface and multimedia support to make history come alive in ways that few people probably imagined back in 1982. I’ve recently spent some time with a pair of apps—World War II Interactive and Timeline World War 2—that take the same information about the war that I pored over decades ago and present it in an eye-popping new fashion.
What are the orbital lengths and distances of objects in our solar system? Space is huge, and even our immediate environment is gigantic. We are the third planet from the Sun, and the third of three inner planets, all of which are right next to the Sun compared to others. The picture below shows the planets in their orbits on the orbital plane.
Physics Flash Animations We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from The categories are: In addition, I have prepared a small tutorial in using Flash to do Physics animations. Fear the Beard: Everything You Ever Wanted to Know About Facial Hair (Infographic) Ever wonder if growing facial hair has a purpose beyond making it easier to play “Spot the Hipster” at trendy urban coffee houses? Apparently it does. While modern may might grow a beard to intimidate opposing batters, prehistoric men grew beards to keep warm, intimidate enemies and protect their faces from punches.
Immigration: Stories of Yesterday and Today and Ellis Island World War II and the Postwar Period The United States entered World War II in 1942. During the war, immigration decreased. There was fighting in Europe, transportation was interrupted, and the American consulates weren't open. Fewer than 10 percent of the immigration quotas from Europe were used from 1942 to 1945.In many ways, the country was still fearful of the influence of foreign-born people. Coal, Kentucky Geological Survey, University of Kentucky KGS HomeCoal New Kentucky Office of Energy Policy Kentucky Comprehensive Energy Strategy Coal Information General information about coal formation properties, mining, resources, and more. Coal Data Information concerning how to obtain different types of KGS coal data.
Relativistic Baseball What would happen if you tried to hit a baseball pitched at 90% the speed of light? - Ellen McManis Let’s set aside the question of how we got the baseball moving that fast. MapFab is a Fabulous Map Creation Tool MapFab is an excellent free map creation tool built on top of Google Maps. MapFab offers a few advantages over Google Maps, but the most notable advantage is that you do not have to create an account in order to create your custom maps. To start creating custom maps on MapFab just head to the site and enter your starting location. Then select from the menu of custom placemarks and enter a description. There is a variety of font colors to choose from when you label your placemarks. That same variety of text colors can be applied to your map title too.
team6cell / Mitosis Mitosis By Vicky The Mitosis has seven phases in which it makes two daughter cells and those daughter cells come from a single parent cell. Mitosis has many phases, such as, Prophase, Metaphase, Anaphase, Telophase, Interphase, Prometaphase, and Cytokinesis. Each of these phases have a process in which something is created. What is an Operating System Not all computers have operating systems. The computer that controls the microwave oven in your kitchen, for example, doesn't need an operating system. It has one set of tasks to perform, very straightforward input to expect (a numbered keypad and a few pre-set buttons) and simple, never-changing hardware to control.
Website showing how the controls of a plane work. by lyle08 Feb 2
Interactive website showing how a wing works by lyle08 Feb 2
Interactive page showing aircraft development and the effects of thrust, drag, lift, weight. by lyle08 Feb 2