Maps

Heatmap Video Shows the Migration of New Coronavirus Cases Over Time

Published

3 years ago

July 9, 2020

Today’s new animated heatmap comes to us from City-Data.com and follows the trends of new confirmed coronavirus cases around the United States over time. The animation was created using Leaflet.js, Folium Python library, and Monosnap and was shared by a member of the City-Data team on Reddit who goes by the name /u/absurddreams. All data was sourced from the New York Times. Check it out below:

It’s no secret that an early epicenter of the coronavirus pandemic in the United States was New York City. As we now know, even though the virus itself originated in China, the origin of the major outbreak in New York has been traced to travelers from Europe. In the first few months of 2020, millions of travelers came to the U.S. from Europe through major NYC-area airports such as John F. Kennedy International Airport (JFK) and Newark Liberty International Airport (EWR).

A Time Line of Notable Trends:

As the animation begins to unfold, a few hotspots begin to emerge, the most obvious of which is the aforementioned NYC area.
As the end of April comes to pass, a number of pockets throughout the Central United States are visible, but the Northeastern United States are still dominate.
However, when mid-May arrives, New York and the rest of the Northeast have faded significantly.
By mid-June, new COVID-19 cases in the Northeast are negligible, almost completely gone, and the worst zones have shifted to Southern states where several growing pockets have emerged.
As the clock dials around to present day (July 7th) the Southern states, particularly from eastern Texas to South Carolina, are inundated with new coronavirus cases.

The unfortunate and alarming surge in cases across the Southern and even Western states is likely an unfortunate side effect of states failing to impose lockdowns and guidelines to prevent the spread of the virus early on.

The sharp decline in New York and Northeast COVID-19 cases has been attributed to the comprehensive stay-at-home orders, face mask requirements, social distancing guidelines, etc. that were organized by those states. They have flatted the curve for now, but the pandemic is far from over.

As of the date of this publication, this video was last updated on July 8, 2020. See this video and other great visualizations on the City-Data.com COVID-19 graphs and animations page.

Charts

Which Countries Produce the Most Gemstones?

Published

4 days ago

September 19, 2023

Atlas Cunningham

Gems like rubies, emeralds, and diamonds are found in jewelry all over the world. Some countries are known for their prolific gemstone production. Do you know the countries are the biggest sources of each gemstone?

BriteCo, a jewelry insurance company, analyzed data from the U.S. Geological Survey and the International Gem Society to visualize the countries that produce the most of each type of gemstone.

Click below to zoom

The graphic utilizes a world map to show which country produces the most of many different types of gems. The visualization also includes beautiful depictions of each gem included on the map as well as the kilograms of gemstones produced between 2016 and 2020.

These are the top-producing countries of some of the most popular gems:

Amethyst: Zambia (4,465,166 kilograms)
Diamond: Russia (22,720 kilograms)
Emerald: Zambia (129,400 kilograms)
Garnet: Tanzania (765,768 kilograms)
Pearl: Burma (9,245 kilograms)
Quartz: Brazil (69,830,000 kilograms)
Ruby: Tanzania (99,000 kilograms)
Sapphire: Kenya (45,339 kilograms)
Topaz: Nigeria (77,793 kilograms)
Turquoise: Iran (105,000 kilograms)

Overall, the top producer of gems around the world is Tanzania. The country is the top producer of six gemstones on the list (aquamarine, garnet, ruby, sunstone, tanzanite, and tourmaline). In fact, the name tanzanite was given to the gem by jewelry giant Tiffany & Co. in the 1960s to highlight how it can only be found in Tanzania. The mining area for tanzanite is just 7 kilometers (4.3 miles) long and 2 kilometers (1.2 miles) wide in the Manyara region of Tanzania. Tanzanite was named as a December birthstone in 2002 by the American Gem Trade Association.

Charts

The Most Promiscuous Countries in the World

Published

6 days ago

September 17, 2023

Danny Nguyen

Wondering where in the world you’re most likely to get some action? The NapLab team created a Global Promiscuity Index that compares different factors including average number of sexual partners, STD rates, mean age when virginity was lost, and how much of the population finds premarital sex morally acceptable. See which country ranked highest!

Click below to zoom

The visualization utilizes a heat map of the world to show which countries rank highest and lowest on the list. Underneath the world map is an explanation of how the scores were calculated as well as a breakdown of all the data for each country that is included.

The country that earned the top spot on the promiscuity list is Australia, with an index score of 360.14. The mean age that Australians lost their virginity is 17.9, and the average number of sexual partners is 13.3. 81% of people think that premarital sex between adults is not a moral issue. Prostitution is also legal in the country.

Of the 45 countries included in the graphic, the country that ranks last on the list is India. The mean age when residents lose their virginity is 22.9 and the average number of sexual partners is 3. Only 21% of people in India think that premarital sex is morally acceptable.

The following are the top scores for each of the factors included in the ranking:

Mean Age Virginity Was Lost: Iceland (15.6 years)
Average Number of Sexual Partners: Turkey (14.5)
STD Rate Per 100,000 People: South Africa (32,054)
Percentage of People Who Think Premarital Sex is Morally Acceptable: France (94%)

Charts

U.S. States With the Strictest Gun Laws

Published

1 week ago

September 14, 2023

Atlas Cunningham

Gun control laws and policies vary wildly by state. Many states on the east and west coasts of the United States have dozens of gun laws in the books, while many inland states only have a handful of laws to regulate firearms. Sightmark.com, which sells scopes and sights for firearms, looked at data from gun safety organization Everytown to visualize the states that have the strictest gun laws.

Click below to zoom

The graphic is made up of three main sections: a heat map of the United States displaying the number of gun laws in each state, an explanation of different types of gun control laws in the country, and a breakdown of each type of law every state has on record.

The state in the United States that has the most gun laws is California with 45 out of the 50 types of gun control laws. Some of the laws ensure that assault weapons are prohibited, secure storage of firearms is required, and guns are prohibited in K-12 schools.

The state with the fewest gun laws is Mississippi, which only has 3 of the 50 types of laws. 14 of the 50 states have fewer than 10 gun control laws established.

These are the 10 states with the most gun policies adopted along with the number of laws that are in place: