Nanotechnology is the science of the very small, where machines and materials are built at the molecular level, and key components are measured in nanometers, or one-billionth of a meter.

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Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components, software, operations and functions.

ENGADGET: Intel announces new Lexington platform: up to 1.2 GHz, supports 1080p video and HSPA+ data speeds

Components of tobacco smoke such as carbon monoxide, nicotine, benzene and small particles can easily be measured in the air of a smoker's home or workplace.

CNN: Is secondhand smoke really that risky?