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An illustration of a rectangular cheese-vat.

Rectangular Cheese-vat

An illustration of a rectangular cheese-vat.

Principal forms of the isometric system: rectangular prism.

Rectangular Prism

Principal forms of the isometric system: rectangular prism.

The trough battery was a variant of the Voltaic Pile and was invented by William Cruickshank c1800. Volta's battery consisted of brine-soaked pieces of cloth sandwiched between zinc and copper discs, piled stack; this resulted in electrolyte leakage as the weight of the discs squeezed the electrolyte out of the cloth. Cruickshank solved this problem by laying the battery on its side in a rectangular box. The inside of this box was lined with shellac for insulation, and pairs of welded-together zinc and copper were laid out in this box, evenly spaced. The spaces between the plates (the troughs) were filled with dilute sulfuric acid. So long as the box wasn't knocked about, there was no risk of electrolyte spillage.

Trough Battery

The trough battery was a variant of the Voltaic Pile and was invented by William Cruickshank c1800.…

Diagram illustrating the formation of contraction prisms. The centers of attraction are connected by solid lines. The prisms formed are dotted.

Contraction Prisms

Diagram illustrating the formation of contraction prisms. The centers of attraction are connected by…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system. Neither axis is labeled.

Blank Coordinate Grid With Grid Lines Shown

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system. Neither…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with both axes labeled.

Coordinate Grid With Axes Labeled And Grid Lines Shown

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with both…

Illustration of a frustum of a pyramid having a rectangular base and a hole passing through the center of the frustum.

Frustum Of A Rectangular Pyramid With Hole

Illustration of a frustum of a pyramid having a rectangular base and a hole passing through the center…

Illustration of the projection of a rectangular prism that is represented as if it were standing on one of its small ends, with the broad side toward the observer.

Projection Of Rectangular Prism

Illustration of the projection of a rectangular prism that is represented as if it were standing on…

Illustration of the projection of a wedge of a rectangular prism that is standing on one of its triangular sides.

Projection Of Wedge

Illustration of the projection of a wedge of a rectangular prism that is standing on one of its triangular…

Illustration of the projection of a wedge of a rectangular prism that is standing on one of its rectangular sides.

Projection Of Wedge

Illustration of the projection of a wedge of a rectangular prism that is standing on one of its rectangular…

Illustration of the projection of a wedge of a rectangular prism that is viewed from the side.

Projection Of Wedge

Illustration of the projection of a wedge of a rectangular prism that is viewed from the side.

Illustration of the projection of a hexagonal prism.

Projection Of Hexagonal Prism

Illustration of the projection of a hexagonal prism.

Illustration of the projection of a hexagonal prism.

Projection Of Hexagonal Prism

Illustration of the projection of a hexagonal prism.

Illustration of the projection of a rectangular prism whose broad side makes an angle of 30° with the horizontal.

Projection Of Rectangular Prism

Illustration of the projection of a rectangular prism whose broad side makes an angle of 30° with…

Illustration of the projection of a rectangular prism whose base makes an angle of 160° with the horizontal.

Projection Of Rectangular Prism

Illustration of the projection of a rectangular prism whose base makes an angle of 160° with the…

Illustration of the projection of a rectangular prism whose base makes an angle of 17.5° with the horizontal.

Projection Of Rectangular Prism

Illustration of the projection of a rectangular prism whose base makes an angle of 17.5° with the…

Illustration of the projection of a hexagonal prism having two of its parallel sides parallel to the plane of the paper, and its axis vertical. instead of a side elevation at right angles to the horizontal, the angle is 30° with the horizontal.

Projection Of Hexagonal Prism

Illustration of the projection of a hexagonal prism having two of its parallel sides parallel to the…

Illustration of the projection of a hexagonal prism whose axis is parallel to the plane of the paper and whose base makes and angle of 30° with the horizontal.

Projection Of Hexagonal Prism

Illustration of the projection of a hexagonal prism whose axis is parallel to the plane of the paper…

Illustration of the intersection of a quadrangular prism and an octagonal prism. The figures intersect at a right angle.

Intersecting Prisms

Illustration of the intersection of a quadrangular prism and an octagonal prism. The figures intersect…

Illustration of the development of a rectangular prism. "Assume now that the prism is laid on the drawing board, the surface A face down, and the paper covering removed by turning the prism over and over, the paper remaining on the surface of the drawing board, as shown..."

Development Of Rectangular Prism

Illustration of the development of a rectangular prism. "Assume now that the prism is laid on the drawing…

Illustration showing the intersection of a plane with an octagonal prism.

Plane Intersecting Octagonal Prism

Illustration showing the intersection of a plane with an octagonal prism.

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -π to π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -π to π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -π to π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -π to π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -π to π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -π to π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -π to π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -π to π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -π to π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -π to π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -π to π and a range from -10 to 10. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -2π to 2π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -2π to 2π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -9 to 9. The…

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -3π to 3π And Range -10 to 10

Illustration of a trigonometric grid with a domain from -3π to 3π and a range from -10 to 10.…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -1 to 1. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -1 to 1

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -1 to 1. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -2 to 2

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -2 to 2. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -3 to 3

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -3 to 3. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -4 to 4

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -4 to 4. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -5 to 5

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -5 to 5. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -6 to 6

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -6 to 6. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -7 to 7

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -7 to 7. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -8 to 8

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -8 to 8. The…

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The increments on the x-axis are marked in intervals of ½π.

Trigonometry Grid With Domain -4π to 4π And Range -9 to 9

Illustration of a trigonometric grid with a domain from -4π to 4π and a range from -9 to 9. The…