Engineering
The E.V. revolution is revving up
There's a boom in production and sales of electric vehicles, but batteries hold the key to future growth.
Bright sparks
Three start-ups zoom in on water, motor and antibodies.
In the big league
Indian engineers are contributing to international mega science projects looking to solve the mysteries of life and space.
Tinker, Taylor, Soldiering, Spy
Efficiency may seem to enhance productivity, but in practice it does not offer an unalloyed advantage.
