Articles on Engineering

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Solar panels on a Walmart roof, Mountain View, California. Walmart/Flickr

Getting more energy from the sun: how to make better solar cells

Solar power has enormous potential, but provides only about one percent of world electricity today. An engineer explains the many steps it takes to make solar panels that are efficient, clean and cheap.
Drawing and reality: designing a metamaterial pattern. On the left is the plan; on the right is the actual object. Bossard/Penn State/Flickr

Beyond invisibility: engineering light with metamaterials

We are beginning to be able to control very precisely how light interacts with matter, creating opportunities for invisibility, soundproofing and even earthquake damage prevention.
Dagne Mojo (centre) and Petr Matous (right) discuss resource-conserving technologies with the inhabitants of Arsi Zone, Ethiopia. Tatsuya Ishikawa

Engineers don’t just build things, they can help save the world

The role of an engineer has diversified over the years to be something more than just building structures. But that is yet to be reflected in the way we teach the engineers of the future.

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