annotations, 3 sources

Bret Lortie, 2003 A new wave of energy
Chicago Illinois, United States: Bulletins of the Atomic Scientist
This article reports a brief over view on tidal power and how it can be used as alternative sources of energy. This article gives good general information on how much power tidal turbines can generate. It also tells on how tidal turbines have little effect on the environment.

Anonymous, July 20, 2007 Turbine seeks to turn tide
United Kingdom: The Engineer
This article tells about a new design for a tidal turbine in the United Kingdom. It also tells that because of the lack of support from the government for this new design, the developers might seek support from other countries like the United States. This source provides good information in terms the development of tidal technologies. It also shows one of the challenges of this new technology which is the lack of support from the government.

R.F. Nicholls-Lee and S.R. Turnock, 2008 Tidal energy extradition: Renewable, sustainable and predictable
Northampton, United Kingdom: Science Progress
This article gives a lot of detail about tidal power. It describes in detail the science behind tides. It also list site around the world that where tidal power can be harness efficiently. Overall this article is an extremely useful source since it contains a lot of information about tidal power.