How the donut changed the world - @

Abbe's diffraction limit was an insurmountable barrier for more than 100 years until Stefan W. Hell came up with the idea of a donut-shaped laser beam.

The History of the Doughnut, History

Meet the American who invented the donut

8 Fast-Food Chains That Serve the Best Donuts

What makes camelides so special? Nanobodies!

Krispy Kreme, with 31 Georgia locations, giving away free donuts on World Kindness Day

Global Donut Day: Wales - Donut Economics Online Seminar - Welsh Centre for International Affairs

Labeling for STED microscopy - @

The History and Legends of Doughnuts

The “Donut Effect” is real

A Donut-Shaped Planet Is Technically Possible

Doughnut-shaped skyscraper completed in Guangzhou

File:Donut shape.jpg - Wikimedia Commons

Donut Cake Pan Fancy-Shaped 12 Well - CHEFMADE official store

40 Types of Donuts From Around the World