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    • We use it for everything from feeding ourselves to shooting through space, and yet energy itself is not easily understood. This exhibition presents unexpected discoveries about how we think and talk about energy, the concepts of embodied energy and energy density, and renewable energy sources, from the traditional oil lamp used by the Inuit, Chukchi and Yupik peoples of the Arctic, to the chemical energy in batteries that power today’s electric vehicles. Through interactive displays, public discussions and educational programs, The Power of Energy recalls humans’ first encounters with fire and draft animals, considers the myriad uses of energy in the 21st century and ponders what might be next.

    THIS EXHIBITION IS MADE POSSIBLE THROUGH THE GENEROSITY OF THESE SPONSORS:

    Gallery

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    Photo by the Anchorage Museum

    Incandescent vs. LED

    These two bulbs produce the same amount of light, but use very different amounts of electricity to do it. The incandescent bulb on the right uses 100 watts of power to produce 1,600 lumens (or 16 lumens per watt). It would take 714 pounds of coal to power a similar bulb lit 24-hours-a-day for an entire year. The LED light on the left produces 150 lumens per watt - requiring only 10.7 watts of power, or 76.4 pounds of coal, to produce the the same amount of lumens of light 24 hours a day for a year.

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    Photo by the Anchorage Museum

    Wood

    Besides our own muscles and those of the animals we domesticated, wood was humankind’s very first source of energy. For more than 2 billion people who live in less developed places around the world today, wood remains the chief energy source for heating and cooking, and wood today provides about 6 percent of the world’s total primary energy supply.

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    Photo by Anchorage Museum

    Emission Cubes

    These cubes represent the average volume of CO 2 emitted daily through human activities in the United States, China, Germany, Brazil and Rwanda, as well as the average daily emissions for the planet’s entire population of 7.6 billion individuals.

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    Photo by Anchorage Museum

    Emission Cubes - front

    These cubes represent the average volume of CO 2 emitted daily through human activities in the United States, China, Germany, Brazil and Rwanda, as well as the average daily emissions for the planet’s entire population of 7.6 billion individuals.