https://youtu.be/vYoBMzW39Tc
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The most popular messager apps are the ones that run on all kinds of smartphone operating systems including iOS, Android and Windows. They are easy to download and use.
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In this video, we will see the popularity of these applications through graph visualization.
https://youtu.be/0wdYBthOypU
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This video shows the Top 10 countries by total coronavirus infections (confirmed cases) from January 23 to July 21 , 2020. It first started in Wuhan, Hubei, China, then spread to all countries.
Historical data are fun, but reading them is tedious. This Page makes these tedious data into a dynamic timeline, which shows historical data from past to present, sometimes even to the future! We make tons of historical rankings, comparisons about many important issues, such as GDP, population, and many more.