Do you ever just go to http://www.wolframalpha.com/ and hit the random button? My first 5 results are below. Note I only selected a small part of each output that I thought was particularly interesting.

1) **Query**: absorption coefficient of sound moist air at 30C and 20% and 6000ft**Output**:: http://www.wolframalpha.com/input/?i=absorption+coefficient+of+sound+moist+air+at+30C+and+20%25+and+6000ft&random=true

5000 Hz:

absorption coefficient | 68.87 dB spl/km (decibels sound pressure level per kilometer) | = 110.8 dB spl/mi (decibels sound pressure level per mile) (from ISO 9613-1: 1993 Acoustics-Attenuation of sound during propagation outdoors)

10,000 Hz:

absorption coefficient | 240.6 dB spl/km (decibels sound pressure level per kilometer) | = 387.3 dB spl/mi (decibels sound pressure level per mile) (from ISO 9613-1: 1993 Acoustics-Attenuation of sound during propagation outdoors) sound during propagation outdoors)

2) **Query: **C, Eb**Output: **http://www.wolframalpha.com/input/?i=C%2C+Eb&random=true

3) **Query: **probability of winning at craps**Output: **http://www.wolframalpha.com/input/?i=probability+of+winning+at+craps&random=true

0.4929 ~~ 1 in 2

come-out roll | result | probability | probability of winning

2 | craps (loss) | 1/36 | 0

3 | craps (loss) | 1/18 | 0

4 | set point to 4 | 1/12 | 1/3

5 | set point to 5 | 1/9 | 2/5

6 | set point to 6 | 5/36 | 5/11

4) **Query: **10 megaton nuclear explosion**Output: **http://www.wolframalpha.com/input/?i=10+megaton+nuclear+explosion&random=true

nuclear explosion |

yield | 10 megatons of TNT

height of cloud top | 18 miles

height of cloud bottom | 12 miles

radius of cloud | 23 miles

fireball duration | 13 seconds

air blast radius (near-total fatalities) | 3.6 miles

ionizing radiation radius (500 rem) | 3 miles

air blast radius (widespread destruction) | 9.6 miles

(assuming optimum burst height;

fireball duration is based on 10% of peak emission intensity)

5) **Query: **range of e^(-x^2)**Output: **http://www.wolframalpha.com/input/?i=range+of+e^%28-x^2%29&random=true

So that’s WolframAlpha. It is really fun to play with and I highly recommend playing with it. It even let’s you do silly things like look up the parametric equation for a taco curve. My only problem with the site is that it constantly bugs you to get a pro membership. Without one you do not have access to a lot of features but the functionality that is accessible for free is still really fun.