Worries About Radiation Exposure to Children in the Dentist’s Chair

cone-beam scan

An image from a cone-beam CT scanner used by dentists.

Because children and adolescents are particularly vulnerable to radiation, doctors three years ago mounted a national campaign to protect them by reducing diagnostic radiation to only those levels seen as absolutely necessary.

 

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Top 10 Inventions That Changed The World

xray

Xray

To mark its centenary, in June the Science Museum in London had its curators select the 10 objects in its collection that had made the biggest mark on history. These then went to a public vote to find the most important invention of past centuries. Visitors to the museum and online voters cast nearly 50,000 votes. Find out the winners below.

 

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