The efficiency produces all the torque needed to let a 165-pound person walk, but with just a 30W to 60W motor versus SPARKy's 150W -- a big help to battery life that also reduces the AMP-Foot 2.0's weight to that of the fleshy kind.
It was five years ago that prosthetics took a very literal step forward when Arizona State University's SPARKy foot offered a more natural walk, capturing the inherent kinetic energy that previously needed a big motor to replicate.
It could be a pretty sparky session given the SNP's lack of enthusiasm for Westminster scrutiny, and UK Europe Minister David Lidington will join the fun.
The airline business, whose cocktail of old-fashioned national giants, regulators and sparky new upstarts resembles the telecoms industry's, is newly thick with alliances.