What is Wolfram|Alpha?

 I discovered this tool by Dale Botha !

   Cereously!

"Ceres!  We're going to Ceres!  NASA's Dawn spacecraft is en route and should arrive in February 2015.  Considering we've known about it for over 2 centuries and it is 3 times closer than Saturn and 10 times closer than Neptune and their moons, I've always been very surprised to see the fuzzy images we have of it..."

enceladus + ceres+triton = wolframalpha.com

Read his post here: curiousdale.posterous.com/cereously 

 About Wolfram|Alpha

"Wolfram|Alpha's long-term goal is to make all systematic knowledge immediately computable and accessible to everyone. We aim to collect and curate all objective data; implement every known model, method, and algorithm; and make it possible to compute whatever can be computed about anything. Our goal is to build on the achievements of science and other systematizations of knowledge to provide a single source that can be relied on by everyone for definitive answers to factual queries..." http://www.wolframalpha.com/about.html

another example: Color

Color Names

• Compute properties of a named color:
• specify an HTML color:

Color Addition

• add two or more colors:

Color Systems

• specify a color using red-green-blue (RGB) values:
• use a 24-bit hexadecimal RGB color specification:
• specify a color using cyan-magenta-yellow-black (CMYK) values:
• specify a color using hue, saturation, and value (HSV):
• specify a color using hue, saturation, and lightness (HSL):

Temperatures

• compute the blackbody radiation color for a temperature:

 Wavelengths

• compute the visible light color corresponding to a wavelength:
• compute the visible light color corresponding to a frequency:

and look at the resultat here: wolframalpha.com

Blog: blog.wolframalpha.com

Where are Wolfram|Alpha widgets?

blog.wolframalpha.com