The tragic and unfolding news stemming from the historic earthquake and tsunami that hit Japan this month saddens us deeply.

Engineering for Change (E4C) is the backbone of an initiative aimed at enabling social change in the developing world—from the ground up.

This month's Letters to the Editor refer to articles that ran in Mechanical Engineering magazine since last June.

"Too Close or Not Close Enough?", "Don't Fear the Drill" and "Modified Choppers for Airlift Missions" are among the items included in this month's News & Notes section.

This month's Computing column includes "Tiny Bubbles," "Pin the Spin" and "Book Learning."

Power Transmission & Motion Control is the theme of the March 2011 Tech Focus section.

Recently published books for engineers and those interested in engineering.

The manager of a police forensic laboratory has come up with a device for monitoring corrosion, particularly in copper and copper alloys used in industry.

New Web site seeks to connect engineers and humanitarian organizations to create smart, sustainable development projects.

Starting up? Make your IP attractive to investors.

Focus on Management Engineering: A design instructor discusses what to look for in hiring an engineer right out of school, and whom to ask for a word of reference.

Focus on Management Engineering: There are things they didn’t teach us in school that we need to know if we’re going to survive—or excel—at our jobs.

Focus on Management Engineering: Care about product quality? About reducing your workload? Then you should care about product lifecycle management.

The first jumbo jet was an engineering marvel. But it took some clever design work to keep the planes in the air.

Focus on Medical Devices: Some special-needs babies lead lives with limited mobility. Engineers have begun to build devices that allow these children to move about independently.

This month's Software Exchange section includes "Multi-CFD," "Factory Design" and "Turbo Design."

Electric motors, mass flow controllers, and flow switches are among the New Products featured this month.