Whether at home, in the classroom or in a restaurant: Zeit online calculator shows when people can become infected indoors. Everything interactive and clearly visualized. Click on the image and test how safe your environment is.

 

And which three-dimensional view is perfect to convey information with the following characteristics:

• three sides of the object with the same visual significance, for a visually “neutral” view as far as possible
• no reduction factor in the axes, for good readability of size relations
• identical angle between the main axes, for ideal reuse of views