Sound Radiation

        The loud noise of Auto rickshaws is quite annoying, and contributes substantially to the noise pollution of Indian cities. The picture shows radiated sound intensity [more]

Tribology

        When the engine of a car is started from cold, it is best to let it run a few minutes before moving the vehicle. This is to let the lubricant inside the engine to start [more]

Sonoluminescence

        The tiny force of a bursting bubble can be felt on the lips when one sips soda from a glass. The photograph shows the light emitted from millions of collapsing bubbles [more]

Micro-Electro-Mechanical

        Keeping balance is a very tricky business as a new bicycle learner would certify. The picture shows a rate grade MEMS gyroscope that is used to detect the rate of [more]

Arc Welding

        From bicycle frames to aircraft structures, welding is the ubiquitous method for making permanent joints. The picture shows a comparison between the actual and the [more]

Solid-Mechanics

        The way the cola-can crumbles. The picture shows the plastic strain distribution due to localized necking in aluminium alloy tube subjected to hydro forming. [more]