Fossilized wood reveals 300 million years of Earth's history

Many people are familiar with fossilized wood as a decorative item from a museum shop. However, the fact that it can preserve the geological history of entire regions spanning millions of years is a new discovery. A research ...

Algorithms create foundry-ready photonic circuits

Photonic microchips can process data at extremely high speeds and are embedded in a wide variety of today's technologies. Researchers at the Max Planck Institute for the Science of Light (MPL) and Harvard University have ...

Can a robot tutor give too much help? Why timing matters

A learner stands in a room with a bottle, a cup and a book. The task is to figure out, step by step, where each object belongs in the room. Under the table? Or perhaps on the chair? A humanoid robot gives the instructions—but ...

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