yoName - People Search. Search for people across social networks, blogs and more. Cell Size and Scale Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. A magnifying glass can help you to see them more clearly, but they will still look tiny. Smaller cells are easily visible under a light microscope. To see anything smaller than 500 nm, you will need an electron microscope. Adenine The label on the nucleotide is not quite accurate. How can an X chromosome be nearly as big as the head of the sperm cell? No, this isn't a mistake. The X chromosome is shown here in a condensed state, as it would appear in a cell that's going through mitosis. A chromosome is made up of genetic material (one long piece of DNA) wrapped around structural support proteins (histones). Carbon The size of the carbon atom is based on its van der Waals radius.
Twitter Search Absolute Zero | A Sense of Scale By Glenn Elert Posted 01.08.08 NOVA At roughly minus 460°F, absolute zero is abysmally cold, yet at least we can imagine it. Being only a few hundred degrees below zero, it's in the realm of something we can put our minds around. This is not true of the opposite of absolute zero, the theoretical highest possible temperature. In conventional physics, this is approximately 100 million million million million million degrees. In this interactive, get a taste of temperatures from absolute zero to absolute hot, and see why, for instance, even the core of the sun is relatively "chilly" compared to what many physicists believe the temperature of the universe was an instant after the Big Bang. Launch Interactive Travel from absolute zero to what may be the highest temperature of all. This feature originally appeared on the site for the NOVA program Absolute Zero. Glenn Elert is Research Coordinator and Webmaster for the Physical Science Department of Midwood High School at Brooklyn College. Images
modellbahn-portal.de - das tor zur modelleisenbahn im internet macromedia users group - south africa Ted On Flex: Flex 3 Details Next Week Since December 2012, I have used TypeScript as my primary language while working on a large scale enterprise project due to ship next month. I want to share the details on how we are using TypeScript as a team and our workflow that has made our project a success. TypeScript is an open source language and compiler written by Microsoft that runs on NodeJS. The language is based on the evolving ES6 spec but adds support for types, interfaces that generates JavaScript (ES3 or ES5 dialects based on flag). TypeScript’s compiler is written in TypeScript and run on any compliant JavaScript runtime by default it is distributed as an npm on Nodejs. In November 2012, we selected technologies and our initial evaluation of TypeScript proved surprisingly beneficial. Validation – TypeScript enabled us to validate code usage cross-modules at compile-time. In the months that followed our evaluation we settled into a team workflow with TypeScript that really benefited our project. Ted : )
The Delegate Class Freelancer behind 5 1/2 math and physics enthusiast Patrick has a knack for making seemingly simple things overly complicated. Perfect for a tutorial writer. View all articles by Patrick Mineault Written by: Patrick Mineault, , Difficulty Level: Beginner Requirements: MX 2004 Topics Covered: Delegate class, component events Assumed Knowledge: actionscript, experience with components The Delegate class is a utility class written by Mike Chambers that makes working with component events easier. There are two ways in which you can assign an event handler for a component using addEventListener: assigning the event to an object, or assigning it to a function. var obj = new Object();obj.click = function(evt){ trace(evt.target); trace(this);}myBtn.addEventListener("click",obj); And for functions: import mx.utils.Delegate;function myClickHandler(evt){ trace(evt.target); trace(this);}myBtn.addEventListener("click", Delegate.create(this,myClickHandler));
Breathing Earth