William Playfair, the father of data visualisation, changed the way we understand information. His bar graphs, pie charts, ...

Bar graphs are used to show sets of data in more specific categories. 32 students were asked which season was their favourite. The table shows the results. Construct a bar chart that represents ...

I love data visualizations as much as the next person, but can we agree that we might be overdoing it on stacked bar charts? I’m not opposed to this type of data display. There are several ...

Let’s talk about data. Just the facts. These data are information gathered by satellites, instruments on the ground (thermometers, wind speed gauges, etc.), lasers and the many other ways humans use ...

This VU meter uses Nixie tubes as the display. There are a total of fourteen IN-13 bar graph tubes that map out the audio spectrum. The build uses purely hardware for the display; no ...