Despite decades of growth, demand for more and faster internet connections continues to skyrocket. According to Cisco, by the end of this year total internet bandwidth will exceed a zettabyte. (A one with 21 zeroes behind it.) That’s enough bandwidth to stream approximately 143 billion hours of Netflix video at Ultra HD quality.
Over the last 40 years, obesity rates around the world have ballooned. The average adult today is 3x as likely to be obese compared to the average adult in 1975. This map shows how it happened, country-by-country. The color of each county represents its adult obesity rate in the year shown.
Last week I published a new heatmap exploring the popularity of American birthdays. The chart, which uses darker shades to represent higher average birth counts on specific days, can give the impression that some birthdays are much more common than others.
In reality, outside of some special occasions, namely major holidays, there isn’t a huge amount of diversity in the data set, which has two decades of births aggregated by day. Most birthdays, including my own, are fairly average — especially in the first six months of the year. For example:
Ocean temperatures have been consistently rising for at least three decades. Scientists believe that global sea surface temperatures will continue to increase over the next decade as greenhouse gases build up in the atmosphere.
It’s baby season in America, with September the busiest month for births on average in the last two decades. So it seemed like the right time to remix this blog’s most-popular post: How Common is Your Birthday?
That old heatmap, which highlighted specific dates for popularity, has been viewed more than 500,000 times here and published across the web. But it was flawed, namely that it used ordinal data (birthday ranks by date) rather than continuous data (actual births counts by date). This graphic finally addresses that problem:
This year’s presidential election between Hillary Clinton and Donald Trump could show shifting political allegiances among the states. A look at past presidential elections shows how big a swing these changes would be.
More than three years after a Supreme Court decision gave federal recognition to same-sex marriages performed in states that allowed them, the demographics of same-sex married couples largely remain a mystery. But a new research paper published by the Treasury Department on Monday has found an interesting way around these problems: tax records.
The principles outlined in that article aren’t just for charts, though. You can apply them to your data tables with similar improvements in readability and aesthetics. To paraphrase Edward Tufte, too often when we create a data table, we imprison our data behind a wall of grid lines. Instead we can let the data itself form the structure that aids readability by making better use of alignment and whitespace.
A Washington Post-SurveyMonkey poll of all 50 states indicates the 2016 campaign could flip several red and blue states from their longtime loyalties. The poll, conducted Aug. 9 through Sept. 1, asked more than 74,000 registered voters who they currently support for president.