
Logo of the National Institute of Standards and Technology |

NIST administration building in Gaithersburg
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Samuel W. Stratton |

Liquid flow across the tubes of a heat exchanger in a nuclear power plant
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Landscape with Clear Air and Clouds |

Glowing embers of barbecue solid fuel
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Diagram of a de Laval nozzle showing how temperature, pressure and the velocity of gas flowing through the nozzle will vary from inlet to outlet |

Diagram of a de Laval nozzle showing how the flow velocity increases from slow (green) to fast (red)
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A classical venturi tube |

Frictional and other forces acting on a body at rest
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Diagram of the catalysis cycle |

The effect of a catalyst on a chemical reaction
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Energy level diagrams for exothermic and endothermic reactions |

Sequence of steps in typical chemical engineering process design
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Schematic flow diagram of a typical Glycol Dehydration process unit |

Diagram of the four majors phases of matter
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Hydroelectric power plant at Three Gorges Dam on Yangtze river in China |

Wind farm turbines in San Gorgonio Pass, Southern California
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Wind farm turbines near Fluvanna, Texas |

Wind farm turbines in San Gorgonia Pass, Southern California
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