Friday, August 27, 2010

What is Wolfram|Alpha?

 I discovered this tool by Dale Botha !

"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 =

 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..."

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):
  • compute the blackbody radiation color for a temperature:
  • compute the visible light color corresponding to a wavelength:
  • compute the visible light color corresponding to a frequency:
and look at the resultat here:

Where are Wolfram|Alpha widgets?