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This week’s new questions

If the odds are always tipped in favour of the casino, how do professional gamblers make a living? And, since the time of Christopher Columbus, Europe has benefited from crops from the Americas, such as potatoes. But what crops grew in Europe that Native Americans didn’t have?

12 October 2022

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Adam Gault/Getty Images

If “the house always wins”, how do professional gamblers make a living?

Grace Benham,

Poole, Dorset, UK

vegetable bounty

Winthrop Brookhouse/Shutterstock

Christopher Columbus’s expeditions to the Americas brought tomatoes, peppers, potatoes, beans, squash and maize to Europe, but what about the other way? What crops grew in Europe that Native Americans didn’t have? And what crops were present on both sides at that time?

Eric Kvaalen,

Les Essarts-le-Roi, France

To answer this question – or ask a new one – email lastword@newscientist.com.

Questions should be scientific enquiries about everyday phenomena, and both questions and answers should be concise. We reserve the right to edit…

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