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Hot technology

By Stephen Ornes / July 19, 2012

This drawing shows a tiny device that can use changes in temperature to produce electricity. The golden lines in the middle represent wires made from zinc oxide. They’re sandwiched between two plates that conduct electricity. Credit: Z.L. Wang

A new device harvests energy that would otherwise go wasted

Posted in Technology & Engineering | Tagged batteries, Chinese Academy of Sciences, electricity, energy, energy transfer, environmentally friendly, forms of energy, Georgia Institute of Technology, Georgia Tech, getinvolved, green technology, Heat, lattice, materials science, nanoenergy, NanoLetters, nanotechnology, pyroelectric, renewable energy, topstories, Zhong Lin Wang, zinc oxide

Popping to Perfection

By Emily Sohn / April 24, 2005

Scientists have uncovered why some popcorn kernels stay unpopped in the microwave.

Posted in Chemistry | Tagged forms of energy, Heat, transformation of energy

Cold House, Hot House, Green House

By Emily Sohn / October 12, 2004

Saving energy at home requires paying attention to the building’s windows, walls, and roof.

Posted in Technology & Engineering | Tagged Alternative energy, conservation of energy, Efficiency, energy, energy source, forms of energy, Heat Energy loss, House design, physics