Ocean Energy: Using the Ocean's Tides, Waves, and Heat to Generate Electricity

Key facts: - The oceans' tides, waves, current, and heat can be used to generate electricity. These resources are renewable, because the moon's gravity drives tides, and winds create waves. Covering 70 percent of the Earth's surface, the oceans collect significant amounts of heat from the sun. - A tidal dam with a capacity of 240 megawatts (MW) has operated in France since 1966; a 100 MW tidal dam has generated power in China since 1987; and a 20 MW tidal dam has operated in Canada since 1984. Several other, smaller ocean energy systems are also in use around the world. Theoretically, ocean waves could produce more than 2 million MW of electricity, according to the US Department of Energy. - The best locations for harnessing wave power are regions with the strongest winds. Areas off the Northwest and Northeast coasts of the United States have good potential for ocean energy

L\u27Egal Franglais

The following list of words that look the same in French and English is a modified form of one made for the members of the Ouvroir de Literature Potentielle (OuLiPo), a group of eighteen writers and mathematicians based in Paris whose raison d\u27etre is the literary use of constructive form. Specifically, it was generated to provide material for the composition of heteronymic, ambivalent Anglo-French texts. The list, which is not meant to be exhaustive, has been drawn up according to three principles

Review of Beyond the Beach: The Allied War Against France by Stephen Alan Bourque

Review of Beyond the Beach: The Allied War Against France by Stephen Alan Bourque

The Effect of Dietary Energy and Protein Levels on Production in Breeding Female Ostriches.

1. In a study spanning two breeding seasons, we assessed the effect of different dietary energy and protein levels on body mass, body condition, and egg production of female ostriches. 2. During the first breeding season, groups were given diets with energy concentrations of 8.5, 9.5 and 10.5 MJ/kg dry mass (DM) metabolisable energy (ME) and protein concentrations of 135, 150 and 165 g/kg. In the second breeding season, groups were given diets with ME of 7.5, 8.5 and 9.5 MJ/kg and protein contents of 105, 120 and 135 g/kg. 3. Body mass of birds on diets of 7.5 and 8.5 MJ/kg ME decreased significantly in the course of the breeding season compared with birds fed on diets with higher energy contents and body measurements decreased, suggesting a loss of body condition. 4. Females fed on diets containing only 7.5 MJ/kg ME produced significantly fewer eggs at significantly longer intervals, resulting in fewer chicks hatched. 5. There was no significant difference in egg mass, initial chick mass, chick survival to one month of age and body mass of chicks at one month. 6. Dietary protein concentrations had no effect on egg production, egg mass, hatchability, initial chick mass, chick survival or chick mass at one month old. 7. The female ostriches regained their original body mass during the 4-month rest period between breeding seasons, but significant differences in some parameters during the second breeding season suggest that they may not have fully recovered their body condition. 8. A dietary energy content of 7.5 MJ/kg proved to have an adverse effect on egg production by breeding female ostriches, and it may be concluded from this study that a diet containing 8.5MJ ME/kg DM and 105 g/kg protein should be regarded as the minimum that can be used for breeding female ostriches without compromising egg production

Ancestral Caddo Sites in the lower Sulphur River Basin at Lake Wright Patman, Bowie and Cass Counties, Texas

The three sites discussed in this article are within the Lake Wright Patman project area on the lower Sulphur River in East Texas. Two of the sites (Clayborn Springs [41BW55] and Mill Creek [41CS125]) are along the existing shoreline and flood pool, but Swen Farm (41BW65) is mostly submerged, except that the crest of the alluvial terrace the site is on is occasionally an island in the lake. All three sites have been eroded by wave action since the creation of Lake Wright Patman in the 1950s, and the Mill Creek site is still being looted