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Discover the interconnection of math and science through exploring energy concepts. Learn skills vital in both fields and calculate energy consumption for better understanding. Resources from "Sustainable Energy - Without the Hot Air" by David Mackay. Native American proverb reminder included.
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Blurring the boundaries between science and mathematics Autumn 2009
Aims of the session • To demonstrate the interconnectedness of mathematics and science • To begin to explore a resource rich in learning opportunities for science, mathematics and citizenship sessions • To learn something ourselves
What skills do science and mathematics have in common? Both require the ability to • Read • Communicate • Reason • Calculate • Interpret • Problem solve
Our topic for this session is… energy…. In particular, getting to grips with our use of energy.
Credits All subsequent material is drawn from “Sustainable energy – without the hot air” by David Mackay, downloadable as an e-book from http://www.withouthotair.com/
Professor Mackay sets the scene • (Insert video hotlink if desired) • http://www2.warwick.ac.uk/newsandevents/audio/
Is consumed by Cars Jet flights Heating and cooling Making stuff Gadgets Can be generated by Wind Solar heating Photovoltaic panels Tide Biomass Energy..
So…… • Q. How can we make sense of all this? • A. By using numbers
Choosing a unit For ease of comparability we will use 1 kWh per day as our basic unit. This is the energy that would be used by a 40W bulb if switched on for 1 day.
Looking at some energy consumption data (in kWh per day) • Stuff (48) • Cars (40) • Heating and cooling (37) • Jet flights (30) • Gadgets (5) • UK total per person (125)
Finally We do not inherit the earth from our ancestors, we borrow it from our children. Native American proverb