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Glass: Neither a solid nor a liquid, this common yet complicated material is still surprising scientists

  • Written by John Mauro, Professor of Materials Science and Engineering, Penn State
Glass: Neither a solid nor a liquid, this common yet complicated material is still surprising scientistsMost glass is made by melting down soda ash, limestone and quartz sand.gezgin01/iSock via Getty Images

Glass is a material of many faces: It is both ancient and modern, strong yet delicate, and able to adopt almost any shape or color. These properties of glass are why people use it to make everything from smartphone screens and fiber-optic cables to...

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  1. Annual numbers of excess deaths in the US relative to other developed countries are growing at an alarming rate
  2. Prosecuting a former president is not an easy decision. A criminal law professor explains why
  3. A jury of ex-presidents? No, but Trump's fate will be decided by 12 citizen peers, in a hallowed tradition of US democracy
  4. Colonialism has shaped scientific plant collections around the world – here's why that matters
  5. In the year since the Supreme Court overturned Roe v. Wade and ruled states should decide the legality of abortion, voters at the state level have been doing just that: 4 essential reads
  6. Anti-trans bills and political climates are taking a significant mental health toll on trans and nonbinary people – even during Pride
  7. Linguists have identified a new English dialect that's emerging in South Florida
  8. If humans went extinct, what would the Earth look like one year later?
  9. Are you part robot? A linguistic anthropologist explains how humans are like ChatGPT – both recycle language
  10. 'If you want to die in jail, keep talking' – two national security law experts discuss the special treatment for Trump and offer him some advice

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