Jules Verne sent Phileas Fogg around the world in 80 days, but how far is that anyway? How fast would he have had to travel? How long would it take today to go around the world?
http://www.andrewcaelliott.com/explorations/2017/3/21/around-the-world-in-how-long
If you’re looking for numbers on Covid-19, a very good choice is to head over to OurWorldInData.com. Good numbers, good analysis, good visualisations and good interactive tools for exploring the numbers.
Oh, and they cover MUCH more than just Covid-19. Highly recommended.
IsThatABigNumber.com is about extending our number sense. We make comparisons that are (mostly) down-to-earth: populations of people and animals, national budgets, river lengths and so on.
But when we leave behind everyday experience and look at the kind of numbers you find in astronomy and in combinatorics, we come across vastly bigger numbers.
One strategy to grasp these numbers is to break them down into a series of levels, to see them as stupidly big aggregations of things that are themselves stupidly big aggregations of … Here are some good clips illustrating this: