First-ever high-resolution images of a molecule as it breaks and reforms chemical bonds

Credit: Lawrence Berkeley National Laboratory and University of California at Berkeley

The original reactant molecule that is resting on a flat silver surface is imaged both before and after the reaction, which occurs when the temperature > 90° Celsius. 
The two most common final products of the reaction are shown. The three-angstrom scale bars (an angstrom is a ten-billionth of a meter) indicate that the reactant and product molecules are about a billionth of a meter across...

>>Continue reading the article at phys.org<<

xkcd: webcomics & what-ifs

A webcomic of romance, sarcasm, math, and language. It was started by a CNU graduate, Randall Munroe, with a degree in physics. Before starting xkcd, he worked on robots at NASA's Langley Research Center in Virginia.
The comic's tagline describes it as a "Stick-figure strip featuring humor about technology, science, mathematics and relationships"

xkcd:612

Since July 2012, there has been a branch of xkcd called xkcd What-If, which is updated every Tuesday. What If? answers unusual reader-submitted science questions in a creative and humorous, but always mathematically sound, way, and is presented more in the format of an article than a traditional comic strip.

Ideone.com - Online Compiler and IDE

Ideone is an online compiler and debugging tool which allows you to compile source code and execute it online in more than 60 programming languages. Ideone uses their Sphere Engine™ API to execute code on a remote server within a complete & secure runtime environment and to retrieve results of the execution. You can also create your own account to save, review and share your code.

Languages supported by Ideone-

Here are some samples provided by Ideone in different languages.

What does space sound like? | I Fucking Love Science

Photo credit: The image is of the central 50 pc (~150 light years) of the Galactic centre showing ionised gas, hot and warm dust. Credit: Hubble Space Telescope, Chandra X-ray Observatory and the Spitzer Space Telescope

NASA’s Voyager 1 has passed the heliosphere and into the interstellar medium. NASA knew the spacecraft had reached this point because of the vibrations of interstellar plasma detected by Voyager's antennae. The sounds were recorded using an onboard plasma wave instrument, which detected the vibrations of dense interstellar plasma, or ionized gas, from October to November 2012 and April to May 2013.

The Voyager I & II Spacecraft have sent back recordings from Jupiter, Saturn, Uranus and Neptune. You can listen to​ some more space sounds here.

>>Read the full article<<

 

English For Students

This site provides a large collection of English as a Second Language (ESL) tools & resources for students, teachers, learners and academics. Browse all the pages and find useful links and plenty of information.

This website provides a variety of helpful information- from info about tests like TOEFL, GRE, GMAT to having collection of the most famous Nursery Rhymes.
Some of the Topics this website covers are-