Engineering publications brought to you by Mark Allen

Technology

Pressurised motors replace hydraulics underwater

System analysis enhances artificial limb design

Four planets are better than three

Solution to last month’s coffee time challenge

A novel way of recovering energy from flowing water

Shear determination

Innovatory challenges to get out of the recession

PDM ‘09

Saving the planet… with plastic!?

Coffee time challenge solution

High shear mixing cuts costs

Peristaltic pump keeps tyres at correct pressure