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Where the tides turn

Amphidromic points

How high does the high tide go? In the Bay of Fundy, Canada, the difference between high and low tides is more than 16 metres. But at several points in the world’s oceans, called the tidal nodes, the sea level doesn’t change at all.

Return to the fold

Protein folding

Since 2000, millions of hours of computer time have been donated by people around the world to determine how proteins fold in the human body. This may help to understand and treat Alzheimer’s, cancer, HIV, flu, and the coronavirus.

Pie spy

First pie chart

The inventor of the pie chart and the bar chart was also a secret agent who helped collapse the French revolutionary government’s economy through an elaborate counterfeiting operation.