Wolfram Research

A Billion Bits of the Center Column of the Rule 30 Cellular Automaton

The center column of the rule 30 cellular automaton over a billion steps of evolution

Thunder Frequency by WMO Station

Average annual and monthly number of days with thunder

Overcast Frequency by WMO Station

Average annual and monthly number of days without sunshine

Fog Frequency by WMO Station

Average annual and monthly number of days with fog for 22 nations

Snowfall Frequency by WMO Station

Average annual and monthly number of days with snowfall for 9 nations

Dust Frequency by WMO Station

Average annual and monthly number of days with dusty weather for Iran, Jordan, and Saudi Arabia

Rain Frequency by WMO Station

Average annual and monthly number of days with rain for 28 nations

Epidemic Data for SARS

Cumulative number of reported suspect and probable cases

Cunningham Number Factorizations

Numbers of the form b^n-1 and b^n+1 are factored for small prime bases b={2,3,5,7}

Sample Data: 1993 US Cars

Data from 93 cars, selected at random, on sale in the US in 1993 with 27 variables

Sample Data: Scientific Discoveries

Number of great scientific discoveries of each year

Sample Data: Rainfall Seeding

Rainfall in acre-feet from 52 clouds, of which 26 were chosen randomly and seeded with silver oxide.

Prussian Horse Kick Data

Number of soldiers in the Prussian cavalry killed by horse kicks

Sample Data: Warp Breaks

Number of breaks in yarn during weaving per loom.

OECD Data: Hospital Beds Per Country

OECD time series data for number of beds for 1000 inhabitants

Published Papers Per Year on Cellular Automata

A time series of the number of papers published on cellular automata by year from 1974 through 2015

Hospital Beds Per US State

Time series data for number of beds per US state for 1000 inhabitants by ownership type

Sample Data: US Arrests

Number of arrests per 100,000 residents for assault, murder and rape in each of 50 U.S. states in 1973 and percentage of population living in urban areas for each state