Consumer & Gadgets

How do ionic hair dryers work? Can they do what they promise?

If you've been in the market for a new hair dryer, you've likely seen advertising for ionic ones. Some claim to produce negative ions in the millions—with or without the help of added minerals like tourmaline.

Computer Sciences

When AI can't count—and what researchers are doing about it

Today, artificial intelligence can describe images, recognize objects, and explain complex relationships. The pace of development is remarkable: So-called vision-language models (VLMs) combine text and image understanding ...

Robotics

What will it take to make AI-enabled robots safer?

The effort to "align" AI with human values is falling dangerously short in robotic systems, according to researchers from Penn Engineering, Carnegie Mellon University (CMU) and the University of Oxford. In a new paper appearing ...

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