This Chicago Cannabis Advocacy Website Lets Visualizations Do the Talking

Despite Chicago decriminalizing marijuana possession in 2012, the state of Illinois has earned a reputation as the least friendly state in the nation for marijuana users. What does that look like? Rather than citing citizens as they are allowed, Chicago PD is arresting people for small amounts of marijuana at alarming rates. Arrest Chicago, a cannabis advocacy site, lets the numbers do the talking.

FEMA’s New Data Viz Tool Helps Communities Understand the Risk and Impact of Disasters

FEMA just launched a new data visualization tool aimed at help communities better understand the risk and impact of disasters. The tool charts historical disaster declaration data reaching back to 1953, giving a clear, county-specific picture of the type of disasters that have struck and how much FEMA spent on assistance. With this knowledge, communities can be better prepared for the unexpected and put their focus where it matters most.

A True Picture of Population Density

Look up a city’s urban density on Wikipedia, and you know you’re only getting a small slice of the story. There’s no way exactly 27,857.9 people live in every square mile of New York City – some areas are far more packed, some are relatively empty (at least when it comes to living space). Perhaps the best way to get a true picture of where people live is to check out the residential density per square kilometer. That’s what these 3D maps from LSECities visualize, giving us a unique look at 9 world cities and their distribution of people. Each map here looks at a 100 x 100 kilometer square, and quickly reveals how factors like topography and the location of public transport have influenced the growth of these places.

Data Visualization 101: Bubble Charts

In our Data Visualization 101 series, we cover each chart type to help you sharpen your data visualization skills.

So far in our series, we’ve dealt with tools for clearly displaying two dimensions of data, but what happens when you have a third or fourth? Do you use a bar chart and stack bars with different variables next to one another? Do you use multiple graphs and compare the results?

Welcome to the bubble chart. This incredibly versatile chart form can be used to visualize a data set with two to four dimensions, all in one elegant and easy to interpret chart.

Warning: Your Mood Might Affect Your Ability to Interpret Data

Ever notice that when you’re in a bad mood, you tend to make more mistakes? You stub your toe, fumble your cell phone, or misdial a number. According to a recent study from Tufts, your mood can also affect your visual judgement, particularly your ability to effectively interpret data visualizations.

Millionaires Now Control 41% of Global Wealth

Millionaires now control a whopping 41 percent of the $164 trillion in global private wealth, and the wealth gap doesn’t show any sign of slowing. Up from 40 percent in 2013, millionaires are expected to control 46 percent of the world’s wealth by 2019. Of course, this doesn’t just include the lowly seven figure millionaire next door, but also those in the 3 comma club

These numbers come from the Global Wealth report from Boston Consulting Group (BCG), which found that the number of millionaires in the world grew from 15 million in 2013 to 17 million in 2014. Most of this change came from world-wide stock market and asset growth.

Data Visualization 101: Scatter Plots

In our Data Visualization 101 series, we cover each chart type to help you sharpen your data visualization skills.

Scatter plots have been called the “most versatile, polymorphic, and generally useful invention in the history of statistical graphics” (Journal of the History of the Behavioral Sciences, 2005). That’s a big claim, but just as their name implies, they can take a confusing and scattered set of data and make sense of it. As such, these plots are much more than a visualization tool; they are a discovery tool. Let’s look at what makes the scatter plot so good.

What Major Writes the Longest Master’s Thesis?

Even if you don’t count the research that goes into it, writing a master’s thesis is a whole lot of work. So. Many. Pages. But are all majors equally lengthy? Marcus Beck of R is My Friend has the answer in this visualization of masters’ theses from different fields, arranged by average page length.

Medical Chemistry, and Science Technology and Environmental Policy top the list with average lengths well over 100 pages. On the short end of the scale is Clinical Research, having average page lengths of around 25.

Visualizing the Movements of Chess Pieces Using Millions of Games

Every chess piece has a signature footprint after millions of moves. Using the 2.2 million chess games stored at Million Base, Steve Tung has visualized the movements of individual chess pieces across the board. Each of his images reveal that unique footprint and some of the most popular strategies used during a normal game.

This Visualization Will Help You Understand the Unbelievable Number of People Lost in WWII

The Fallen of World War II is a documentary visualization that gives us a heartrending perspective of the casualties lost during the conflict. Created by filmmaker Neil Halloran, the 18-minute short breaks down the war’s tragedies, stacking them into a sobering tally of the people who lost their lives.

With numbers reaching into the tens of millions, it is difficult to comprehend the magnitude of the war, or how it compares to the conflicts of today. But with Halloran’s exceptional comparisons and storytelling, the magnitude of World War II is made clear.