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An artist's depiction of drilling for brine underneath volcanoes to extract useful metals and minerals needed for green technologies
  • Materials
  • Environment & sustainability
  • Issue 98

Mining volcanoes for metals

Green technologies depend on a range of metals and minerals. With concerns about environmental damage from conventional mining, scientists and engineers are seeking alternative sources. Could metal-rich magmatic brines underneath volcanoes have the answer?

A blue tinted close up photo of an eye with a pattern of overlaid concentric white, green, yellow and red circles on it
  • Health & medical
  • Technology & robotics

How robotics can improve retinal surgery

Engineers are working with ophthalmic surgeons to create a robotically controlled needle with a flexible tip that has the precision required to inject therapeutic materials into the tissue lining the back of the eye.

A nitrile-gloved pair of hands soldering electronics in an HMGCC electronics lab
  • Electricals & electronics
  • Technology & robotics
  • Issue 98

The secret world of national security tech

Attracting a new generation of the best engineering talent is at the heart of national security’s bid to stay ahead of rapid technological advances. His Majesty’s Government Communications Centre (HMGCC) explains more about how this is done.

Quick read

  • Health & medical
  • Design & manufacturing
  • Innovation Watch

The water sweets helping people with dementia stay hydrated

Inspired by his late grandma Pat, design engineer Lewis Hornby wanted to find a way to make staying hydrated easier for people with dementia. With his startup Jelly Drops, he’s invented a jelly sweet that is helping thousands of people avoid complications relating to dehydration.

  • Mechanical
  • How does that work?

How do hydraulic presses work?

Whether it's squashing crayons, an anvil or ball bearings, the hydraulic press is governed by a few simple physical principles. Leonie Mercedes explores the engineering behind this enduring viral sensation, and how we can create these obscenely large forces with relatively little input.

Quick read

View of planet Earth from space, being orbited by a satellite harvesting solar power
  • Aerospace
  • Innovation Watch

Generating solar energy from space

Renewable solar energy harvested from space could help us to meet net zero by putting large arrays of photovoltaic panels in orbit to send solar energy down to Earth.

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We run stories about engineering of all kinds.
Our stories showcase its unique breadth and variety, how it makes a difference, and how it helps to shape an inclusive, equitable, and sustainable future.

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Illustration for Ingenia by Benjamin Leon

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