Engineering publications brought to you by Mark Allen

Energy & environment

Long-life battery system stores electrical energy in liquid form

Tin dioxide offers sufficient transparency for solar cells

Current limiter could keep grids in step with renewables

Alstom and SEE set to develop wave-energy site off Orkney

A week of transport icons

Sensor allows plant hormone to be seen in plant tissues

Is shale gas all it's 'fracked' up to be?

Flow model predicts behaviour of shale gas reservoirs

Survey suggests that UK adults undervalue engineering

Lola-Drayson electric racing car unveiled

UK government set to invest in tidal-energy demonstration

Competition encourages young women to become engineers