First Detailed Photos of Atoms
For the first time, physicists have photographed the structure of an atom down to its electrons.
The pictures, soon to be published in the journal Physical Review B, show the detailed images of a single carbon atom’s electron cloud, taken by Ukrainian researchers at the Kharkov Institute for Physics and Technology in Kharkov, Ukraine.
This is the first time scientists have been able to see an atom’s internal structure directly. Since the early 1980s, researchers have been able to map out a material’s atomic structure in a mathematical sense, using imaging techniques.
Read the full article here at Inside Science.org
Linux Baby Rocker – Scripting a CD Tray to Rock a Baby to Sleep
This enterprising Linux user wrote a script that rhythmically opens and closes the CD tray on a tower PC; the CD tray is connected to the baby’s rocking seat. As the tray cycles, the baby rocks. Lovely.
Linux Baby Rocker (via Neatorama)
Adobe Dreamweaver CS4 Dark Color Theme
I’ve recently been going back and forth between Dreamweaver CS4 and Aptana (Eclipse) for a web project that I’m working on. Dreamweaver’s PHP/MySQL integration is miles ahead of Aptana’s. Anyway, the default light code colorization was driving me nuts. I did some research and stumbled upon a nice dark color scheme, which was actually based on the ‘Green Chaud’ Aptana colors which I blogged about a few months ago.
Click here to visit the author’s website and download the color theme.
Colour Lovers – Color Schemes Inspiration, Palettes, Patterns, Trends and more
I ran into an excellent Color website today. It is a fantastic resource for Color Schemes, Patterns, Palettes and more. You can create your own color profile and store your own personal palettes and patterns for later use, and also offers a plethora of download-able options such as PSD, AI and HTM. There’s even a really interesting section on current web and magazine color trends.
Free Social Network Media Icon Sets (Vector, PNG, JPG)
I use these two sites all the time so I figured I would finally share them. They both contain a huge assortment of free social networking icon sets in Vector, PNG and JPG format.
The Best Social Media Icons All In One Place.
30 Amazingly Creative Social Bookmarks Icon Sets : Speckyboy Design Magazine.
How to setup Shared Keys with SSH on Centos 5
I found this great article while trying to learn how to setup Shared SSH keys on Centos 5, Linux. It’s a great set by step tutorial provided by Shapeshed.
What are shared keys?
Shared Keys consist of a Public and Private key and allow a remote machine to authenticate a machine trying to connect it. The Private key resides on your machine and is used to identify you against the public key which resides on the machine you are trying to login to. You might think of it as a handshake. The remote machine has a description of what to expect from the handshake. It is unique to the client machine so if the handshake doesn’t match then the authentication will fail.
Why use shared keys?
Shared keys have two main benefits. Firstly they allow you to turn off password authentication. Malicious bots regularly crawl the web trying to login to servers using SSH. They have large dictionaries of passwords and try to get into your server using brute force attacks. You can limit this by having a strong password and changing the port that you use to login to SSH with. You can also completely turn off password authentication if you use shared keys. Shared keys mean that no one can access your server without the shared key.
Read the Tutorial here: Using Shared Keys with SSH on Centos 5 | Shape Shed.
Tiny Robot Invented To Crawl Through Veins
Slatterz writes “Scientists from Israel’s Technion University have unveiled a tiny robot, made using Micro-Electro-Mechanical Systems MEMS technology, purportedly able to crawl through a person’s veins in order to diagnose and potentially treat artery blockage and cancer. The little robot — with a diameter of just one millimeter — has neither engine nor onboard controls, instead being propelled forward by a magnetic field wielded on it from outside the patient’s body.”
