A new 'gold standard' for safer ceramic coatings

Making your own ceramics can be a way to express your creativity, but some techniques and materials used in the process could spell bad news for your health and the environment. If not prepared properly, some glazed ceramics ...

A nanoscale device to generate high-power terahertz waves

Terahertz (THz) waves fall between microwave and infrared radiation in the electromagnetic spectrum, oscillating at frequencies of between 100 billion and 30 trillion cycles per second. These waves are prized for their distinctive ...

'Whiskey webs' are the new 'coffee ring effect'

Spilled coffee forms a ring as the liquid evaporates, depositing solids along the edge of the puddle. This "coffee ring effect" has fascinated scientists for decades, but now a team says they have uncovered the mechanism ...

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