Saturday January 06, 2018
Water is able to conduct electricity, but is the same true of snow?
more stories from this episode
- How an oddly large beetle penis could inspire new medical technology
- This food additive is hard to avoid and could make hospital superbugs more deadly
- Doctors say blueberries can help radiation kill cervical cancer
- Low level air pollution costs the economy billions of dollars in lost productivity
- Vessels as small as kayaks can impact endangered killer whale behaviour
- You won't believe just how sensitive our sense of touch is
- Water is able to conduct electricity, but is the same true of snow?
- Full Episode
Dr. Yindi Jing, an Associate Professor in the Department of Electrical and Computer Engineering at the University of Alberta in Edmonton explains that water is not a good conductor of electricity in its pure state. When impurities such as salt are added this means that there are also positive and negative ions than can become mobile in order to create an electric charge. In snow however, those ions are not mobile, which means it is not a good conductor of electricity.
Water conducts electricity because of the ions found in the impurities, but in snow the ions are not as mobile as they are in water