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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

World’s tiniest fridge

By Stephen Ornes / September 20, 2010

Staying cool, even in the quantum world

Posted in Technology & Engineering | Tagged energy transfer, Heat, physics, thermodynamics

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