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Section through a molar tooth (Large Print)
This is an image of a molar tooth. There is a locator dot shown, which will be at the top left when the image is thenbsp;correct way up. The image is surrounded by an image border. The top of the tooth is at the top of the page and the root and jawbone at the bottom of the page. The components are labelled. The enamel, the grinding surface, is the upper layer. Down from this is the dentine layer which is slightly softer and surrounds the inner core which is the soft pulp containing the nerve and blood vessels. Going down to the bottom of the page are the two roots of the tooth which hold it firmly in place in the jawbone. The nerves and blood vessels come from the ends of the roots and go off to the left.
Section through a molar tooth (UEB Uncontracted)
This is an image of a molar tooth. There is a locator dot shown, which will be at the top left when the image is thenbsp;correct way up. The image is surrounded by an image border. The top of the tooth is at the top of the page and the root and jawbone at the bottom of the page. The components are labelled. The enamel, the grinding surface, is the upper layer. Down from this is the dentine layer which is slightly softer and surrounds the inner core which is the soft pulp containing the nerve and blood vessels. Going down to the bottom of the page are the two roots of the tooth which hold it firmly in place in the jawbone. The nerves and blood vessels come from the ends of the roots and go off to the left.
Section through a molar tooth (UEB Contracted)
This is an image of a molar tooth. There is a locator dot shown, which will be at the top left when the image is thenbsp;correct way up. The image is surrounded by an image border. The top of the tooth is at the top of the page and the root and jawbone at the bottom of the page. The components are labelled. The enamel, the grinding surface, is the upper layer. Down from this is the dentine layer which is slightly softer and surrounds the inner core which is the soft pulp containing the nerve and blood vessels. Going down to the bottom of the page are the two roots of the tooth which hold it firmly in place in the jawbone. The nerves and blood vessels come from the ends of the roots and go off to the left.
Windmill (Large Print)
This page shows a side view and a front view of a windmill; both images have a dashed image border. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.The side view of the windmill is on the left of the page. At the top centre of the image is one of the sails (blades). It continues down the page at a slight angle to the left. Halfway down its length is the sail's axis, and to the right of this is the mill's cap (rotating tower). Further to the right is a long handle, used to turn the cap to face the wind. To the left of the sails two arrows can be found; these show the direction of the wind. Further down the page are five windows, and the reefing stage (a platform that gives access to the sails). The windmill's base stands on the ground, at the bottom of the page. On the right of the page, the windmill is shown face-on with its four sails radiating outward from a central axis. An arrow to the left of the sails shows their direction of rotation. The sails are in front of the cap, which has two windows on it. Further down the page are five more windows, and the reefing stage. The base of the structure stands on the ground at the bottom of the page. Wind turns the sails and the rotational power produced is used, among other things, to pump water or grind corn. Traditional windmills can be thirty or more metres high.
Windmill (UEB Contracted)
This page shows a side view and a front view of a windmill; both images have a dashed image border. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.The side view of the windmill is on the left of the page. At the top centre of the image is one of the sails (blades). It continues down the page at a slight angle to the left. Halfway down its length is the sail's axis, and to the right of this is the mill's cap (rotating tower). Further to the right is a long handle, used to turn the cap to face the wind. To the left of the sails two arrows can be found; these show the direction of the wind. Further down the page are five windows, and the reefing stage (a platform that gives access to the sails). The windmill's base stands on the ground, at the bottom of the page. On the right of the page, the windmill is shown face-on with its four sails radiating outward from a central axis. An arrow to the left of the sails shows their direction of rotation. The sails are in front of the cap, which has two windows on it. Further down the page are five more windows, and the reefing stage. The base of the structure stands on the ground at the bottom of the page. Wind turns the sails and the rotational power produced is used, among other things, to pump water or grind corn. Traditional windmills can be thirty or more metres high.
Windmill (UEB Uncontracted)
This page shows a side view and a front view of a windmill; both images have a dashed image border. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.The side view of the windmill is on the left of the page. At the top centre of the image is one of the sails (blades). It continues down the page at a slight angle to the left. Halfway down its length is the sail's axis, and to the right of this is the mill's cap (rotating tower). Further to the right is a long handle, used to turn the cap to face the wind. To the left of the sails two arrows can be found; these show the direction of the wind. Further down the page are five windows, and the reefing stage (a platform that gives access to the sails). The windmill's base stands on the ground, at the bottom of the page. On the right of the page, the windmill is shown face-on with its four sails radiating outward from a central axis. An arrow to the left of the sails shows their direction of rotation. The sails are in front of the cap, which has two windows on it. Further down the page are five more windows, and the reefing stage. The base of the structure stands on the ground at the bottom of the page. Wind turns the sails and the rotational power produced is used, among other things, to pump water or grind corn. Traditional windmills can be thirty or more metres high.
Wind turbine (Large Print)
This page shows a side view and a front view of a wind turbine, which turns wind energy into electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. Both images have a dashed image border.The side view of the turbine is on the left of the page. In the centre of the image are two arrows showing the direction of the wind. To the right of these is the rotor, going vertically up and down the page. To the right of this is the generator, which is powered by the turning of the rotor. The whole of the rotor-generator assembly, which is pointed into the wind by a computer control system, pivots vertically on the turbine tower down the page.On the right of the page is the front view of the wind turbine. The three-bladed rotor is in the centre of the image with its axis marked by a heavy texture. There is an arrow in the top left of the image showing the direction of rotation of the rotor. The tower has its deep foundations (not shown) in the ground, at the bottom of the page.
Wind turbine (UEB Contracted)
This page shows a side view and a front view of a wind turbine, which turns wind energy into electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. Both images have a dashed image border.The side view of the turbine is on the left of the page. In the centre of the image are two arrows showing the direction of the wind. To the right of these is the rotor, going vertically up and down the page. To the right of this is the generator, which is powered by the turning of the rotor. The whole of the rotor-generator assembly, which is pointed into the wind by a computer control system, pivots vertically on the turbine tower down the page.On the right of the page is the front view of the wind turbine. The three-bladed rotor is in the centre of the image with its axis marked by a heavy texture. There is an arrow in the top left of the image showing the direction of rotation of the rotor. The tower has its deep foundations (not shown) in the ground, at the bottom of the page.
Wind turbine (UEB Uncontracted)
This page shows a side view and a front view of a wind turbine, which turns wind energy into electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. Both images have a dashed image border.The side view of the turbine is on the left of the page. In the centre of the image are two arrows showing the direction of the wind. To the right of these is the rotor, going vertically up and down the page. To the right of this is the generator, which is powered by the turning of the rotor. The whole of the rotor-generator assembly, which is pointed into the wind by a computer control system, pivots vertically on the turbine tower down the page.On the right of the page is the front view of the wind turbine. The three-bladed rotor is in the centre of the image with its axis marked by a heavy texture. There is an arrow in the top left of the image showing the direction of rotation of the rotor. The tower has its deep foundations (not shown) in the ground, at the bottom of the page.
Watermill (Large Print)
This is an image of a watermill with its waterwheel being turned by the flow of a millstream. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It is framed by a dashed image border.At the left of the page is the stream running down to the right and pushing the waterwheel round in an anti-clockwise direction. The axis of the wheel is marked by a heavily textured disc at its centre. From this, spokes radiate outwards to the paddles.At the top of the page, is the roof of the mill house and down from this, a wall with two windows is shown. Down the page again is the stream running over the ground at the bottom of the page. This type of waterwheel, with the water pushing the bottom of the wheel, is known as an undershot wheel. The power from the wheel is used to drive machinery.
Watermill (UEB Contracted)
This is an image of a watermill with its waterwheel being turned by the flow of a millstream. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It is framed by a dashed image border.At the left of the page is the stream running down to the right and pushing the waterwheel round in an anti-clockwise direction. The axis of the wheel is marked by a heavily textured disc at its centre. From this, spokes radiate outwards to the paddles.At the top of the page, is the roof of the mill house and down from this, a wall with two windows is shown. Down the page again is the stream running over the ground at the bottom of the page. This type of waterwheel, with the water pushing the bottom of the wheel, is known as an undershot wheel. The power from the wheel is used to drive machinery.
Watermill (UEB Uncontracted)
This is an image of a watermill with its waterwheel being turned by the flow of a millstream. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It is framed by a dashed image border.At the left of the page is the stream running down to the right and pushing the waterwheel round in an anti-clockwise direction. The axis of the wheel is marked by a heavily textured disc at its centre. From this, spokes radiate outwards to the paddles.At the top of the page, is the roof of the mill house and down from this, a wall with two windows is shown. Down the page again is the stream running over the ground at the bottom of the page. This type of waterwheel, with the water pushing the bottom of the wheel, is known as an undershot wheel. The power from the wheel is used to drive machinery.
Power station (Large Print)
This is an image of the main elements of a power station complex, showing a boiler house, turbine and generator hall, and a cooling tower, all connected by pipework. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.At the top left of the page, smoke is rising from the tall chimney of the boiler house down the page. The boiler house has five windows. In its furnace, which is not shown, it burns gas or solid fuel to boil water. The steam produced is sent at high pressure through the pipe on the right to the building with five windows in the middle of the page. Inside here, turbines are turned at high speed by the steam and these, in turn, power electrical generators. Both the turbines and generators are not shown.The waste steam from the turbines is piped to the large cooling tower on the right of the page, where it condenses into water. The cooling tower has massive inward curving walls arcing up to the top of the page where some steam is escaping into the sky. The condensed steam is pumped back to the boiler house, through the pipe shown at the bottom of the page, to be used again.Sometimes, waste heat from the cooling process is used to warm nearby buildings.
Power station (UEB Uncontracted)
This is an image of the main elements of a power station complex, showing a boiler house, turbine and generator hall, and a cooling tower, all connected by pipework. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.At the top left of the page, smoke is rising from the tall chimney of the boiler house down the page. The boiler house has five windows. In its furnace, which is not shown, it burns gas or solid fuel to boil water. The steam produced is sent at high pressure through the pipe on the right to the building with five windows in the middle of the page. Inside here, turbines are turned at high speed by the steam and these, in turn, power electrical generators. Both the turbines and generators are not shown.The waste steam from the turbines is piped to the large cooling tower on the right of the page, where it condenses into water. The cooling tower has massive inward curving walls arcing up to the top of the page where some steam is escaping into the sky. The condensed steam is pumped back to the boiler house, through the pipe shown at the bottom of the page, to be used again.Sometimes, waste heat from the cooling process is used to warm nearby buildings.
Power station (UEB Contracted)
This is an image of the main elements of a power station complex, showing a boiler house, turbine and generator hall, and a cooling tower, all connected by pipework. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.At the top left of the page, smoke is rising from the tall chimney of the boiler house down the page. The boiler house has five windows. In its furnace, which is not shown, it burns gas or solid fuel to boil water. The steam produced is sent at high pressure through the pipe on the right to the building with five windows in the middle of the page. Inside here, turbines are turned at high speed by the steam and these, in turn, power electrical generators. Both the turbines and generators are not shown.The waste steam from the turbines is piped to the large cooling tower on the right of the page, where it condenses into water. The cooling tower has massive inward curving walls arcing up to the top of the page where some steam is escaping into the sky. The condensed steam is pumped back to the boiler house, through the pipe shown at the bottom of the page, to be used again.Sometimes, waste heat from the cooling process is used to warm nearby buildings.
Hydroelectric dam (Large Print)
This image is a cross section of a hydroelectric dam seen from the side. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.It shows a lake, a dam, a water-powered turbine, a generator, and the bed of the river running across the bottom of the page. The image is framed by a dashed image border.To the left of the page is the deep water of the lake, which is being held back by the dam to the right. The top of the dam is above the level of the water. Down the page is the penstock: a large pipe, which carries water down past the blades of the turbine in the middle of the page, through an outflow pipe and into the river down to the bottom right. Up the page from the turbine blades is a shaft, which drives the generator in a building near the top of the dam.
Hydroelectric dam (UEB Contracted)
This image is a cross section of a hydroelectric dam seen from the side. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.It shows a lake, a dam, a water-powered turbine, a generator, and the bed of the river running across the bottom of the page. The image is framed by a dashed image border.To the left of the page is the deep water of the lake, which is being held back by the dam to the right. The top of the dam is above the level of the water. Down the page is the penstock: a large pipe, which carries water down past the blades of the turbine in the middle of the page, through an outflow pipe and into the river down to the bottom right. Up the page from the turbine blades is a shaft, which drives the generator in a building near the top of the dam.
Hydroelectric dam (UEB Uncontracted)
This image is a cross section of a hydroelectric dam seen from the side. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.It shows a lake, a dam, a water-powered turbine, a generator, and the bed of the river running across the bottom of the page. The image is framed by a dashed image border.To the left of the page is the deep water of the lake, which is being held back by the dam to the right. The top of the dam is above the level of the water. Down the page is the penstock: a large pipe, which carries water down past the blades of the turbine in the middle of the page, through an outflow pipe and into the river down to the bottom right. Up the page from the turbine blades is a shaft, which drives the generator in a building near the top of the dam.
Binary cycle geothermal power plant (Large Print)
by Rnib BookshareThis is an image of a geothermal power plant shown from the side in cross section. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. The image is framed by a dashed line image border. All major components have been labelled.Along the bottom of the page is the hot rock (geothermal reservoir) which is the energy source for the power plant. Further up the page is the surface of the ground. In the bottom left of the page is a pipe going up the page from the production well, to the right through a heat exchanger, and down again to the injection well in the layer of hot rock.Hot water under pressure is pushed up the pipe from the production well and through the heat exchanger. Here it gives up its heat to convert water in another pipe into steam. The steam in the second pipe travels left, up and then right, to where it rotates a turbine at high speed, which in turn drives a generator to the right.The two horizontal dashed lines to the right of the generator represent the wires that carry the electricity produced to users. They continue beyond the image border on the right.
Binary cycle geothermal power plant (UEB Contracted)
by Rnib BookshareThis is an image of a geothermal power plant shown from the side in cross section. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. The image is framed by a dashed line image border. All major components have been labelled.Along the bottom of the page is the hot rock (geothermal reservoir) which is the energy source for the power plant. Further up the page is the surface of the ground. In the bottom left of the page is a pipe going up the page from the production well, to the right through a heat exchanger, and down again to the injection well in the layer of hot rock.Hot water under pressure is pushed up the pipe from the production well and through the heat exchanger. Here it gives up its heat to convert water in another pipe into steam. The steam in the second pipe travels left, up and then right, to where it rotates a turbine at high speed, which in turn drives a generator to the right.The two horizontal dashed lines to the right of the generator represent the wires that carry the electricity produced to users. They continue beyond the image border on the right.
Binary cycle geothermal power plant (UEB Uncontracted)
by Rnib BookshareThis is an image of a geothermal power plant shown from the side in cross section. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. The image is framed by a dashed line image border. All major components have been labelled.Along the bottom of the page is the hot rock (geothermal reservoir) which is the energy source for the power plant. Further up the page is the surface of the ground. In the bottom left of the page is a pipe going up the page from the production well, to the right through a heat exchanger, and down again to the injection well in the layer of hot rock.Hot water under pressure is pushed up the pipe from the production well and through the heat exchanger. Here it gives up its heat to convert water in another pipe into steam. The steam in the second pipe travels left, up and then right, to where it rotates a turbine at high speed, which in turn drives a generator to the right.The two horizontal dashed lines to the right of the generator represent the wires that carry the electricity produced to users. They continue beyond the image border on the right.
Solar furnace (Large Print) (UEB Contracted)
This is an image of a solar furnace using energy radiated from the sun to produce electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It shows the sun, reflectors on a hillside, a large parabolic mirror, and a turbine and generator. The image is framed by a dashed line image border.The disc of the sun can be found in the top left of the image. It is emitting a ray of light, represented by a dotted line, which travels down and right, across the page to where it strikes one of the reflectors on the hillside in the middle right of the page. From here, it bounces left to the large parabolic mirror, which in turn, reflects it right, onto the collector. Light from all the other reflectors is also focussed onto the collector, although this has not been shown for reasons of clarity. The intense heat produced (up to three thousand degrees Celsius) is used to boil water; the high-pressure steam powers a turbine, which drives an electrical generator. These are not shown.
Solar furnace (UEB Uncontracted)
This is an image of a solar furnace using energy radiated from the sun to produce electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It shows the sun, reflectors on a hillside, a large parabolic mirror, and a turbine and generator. The image is framed by a dashed line image border.The disc of the sun can be found in the top left of the image. It is emitting a ray of light, represented by a dotted line, which travels down and right, across the page to where it strikes one of the reflectors on the hillside in the middle right of the page. From here, it bounces left to the large parabolic mirror, which in turn, reflects it right, onto the collector. Light from all the other reflectors is also focussed onto the collector, although this has not been shown for reasons of clarity. The intense heat produced (up to three thousand degrees Celsius) is used to boil water; the high-pressure steam powers a turbine, which drives an electrical generator. These are not shown.
Solar furnace (UEB Contracted)
This is an image of a solar furnace using energy radiated from the sun to produce electricity. There is a locator dot shown, which will be at the top left of the page when the image is the right way up. It shows the sun, reflectors on a hillside, a large parabolic mirror, and a turbine and generator. The image is framed by a dashed line image border.The disc of the sun can be found in the top left of the image. It is emitting a ray of light, represented by a dotted line, which travels down and right, across the page to where it strikes one of the reflectors on the hillside in the middle right of the page. From here, it bounces left to the large parabolic mirror, which in turn, reflects it right, onto the collector. Light from all the other reflectors is also focussed onto the collector, although this has not been shown for reasons of clarity. The intense heat produced (up to three thousand degrees Celsius) is used to boil water; the high-pressure steam powers a turbine, which drives an electrical generator. These are not shown.
Windmill and wind turbine (Large Print)
This page shows a windmill and a wind turbine; both images have a dashed image border. There is a locator dot shown, which will be at the top left of the page when the image is the right way up.On the left of the page, the windmill is shown face-on with its four sails radiating outward from a central axis. Further down the page are five windows, an access platform and the base of the structure, which stands on the ground at the bottom of the page. Wind turns the sails and the rotational power produced is used, among other things, to pump water or grind corn.On the right of the page is the wind turbine, which turns wind energy into electricity. The three-bladed rotor, which drives a generator, is in the centre of the image with its axis marked by a heavy texture. The whole of the rotor-generator assembly, which is pointed into the wind by a computer control system, pivots vertically on the turbine tower down the page. The tower has its deep foundations (not shown) in the ground, at the bottom of the page.