Monthly Archives: November 2020

After a broken bone, the risk of a second fracture

In other countries and in some medical networks in the United States, including the Kaiser Permanent System in California, there are integrated services to ensure post-fracture follow-up. In 2013, a campaign called Capture Fracture was launched by the International Te Steoporosis Foundation to ensure that “fracture fracture victims receive appropriate …

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What makes sand soft? – The New York Times

What is the softest sand in the world? Why are a few sands softer than others? – Peter S., Brooklyn, NY We don’t know No one understands how sand works. That sounds absurd, but it’s true. Understanding the flow of granular material like sand is a big unresolved problem in …

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