Notes, summaries, assignments, exams, and problems for Visual arts and art education

personality (adjectives

Maneuvering and Warning Sound Signals (Vessels in Sight)

These signals use short blasts (o, approximately 1 second) and prolonged blasts (__, 4–6 seconds).

• o: I am altering my course to starboard.
• oo: I am altering my course to port.
• ooo: I am operating astern propulsion (giving back).
• ooooo: Danger signal. I do not understand your intentions or actions.
• __ __ o: I intend to overtake you on your starboard side.
• __ __ oo: I intend to overtake you on your port side.
• __ o __ o: I agree with your proposed overtaking maneuver.
• __: Prolonged blast used as a warning signal when approaching a bend or leaving a berth.

Acoustic Signals in Reduced Visibility (Fog Signals)

These signals are sounded at intervals not exceeding two minutes.

• __: Power-driven vessel

Tangencies

Making Tangents

Two Circles

• External Tangents: Draw another circle concentric to the larger one with radius R - r. Join the centers. This is the bisector. Draw an auxiliary circle to the centers. Join the center with the points of intersection with the smaller circumference and extend. Where the lines intersect the larger circle will be the tangent points. Parallels are drawn to the smaller circle to find all points of contact.
• Internal Tangents: The process is the same, except that the circle is of radius R + r, and the parallels are drawn to the opposite side.

Tangent to a Circle Passing Through Point P

• If the tangent is to be external, a concentric circle of radius R + r is drawn. From P, an arc of radius R is drawn, which intersects

Line

Line - is a mark on a surface that describes a shape or outline. It can create texture and can be thick and thin. Types of line can include actual, implied, vertical, horizontal, diagonal, and contour lines. (note: Ken does not list 'psychic line' - that was a 'new term' to me)

Color

Color - refers to specific hues and has 3 properties, Chroma, Intensity, and Value. The color wheel is a way of showing the chromatic scale in a circle using all the colors made with the primary triad. Complimentary pairs can produce dull and neutral color. Black and white can be added to produce tints (add white), shades (add black), and tones (add gray).

Texture

Texture - is about surface quality either tactile or visual. Texture can be real or implied by different...

1. Additive Color Mixtures (Light)

We can derive all colors from three primary colors of light: Red, Green, and Blue (RGB).

An additive mixture is created when colored lights are mixed, because we are adding light energy each time. Mixing two primary colors results in secondary colors:

• Blue Light + Green Light = Cyan Light
• Green Light + Red Light = Yellow Light
• Blue Light + Red Light = Magenta Light

When combining all three primary colors of light, the result is white light.

Color Descriptions in Additive Systems

In this context, blue refers to a more blue-violet color; red is often a red-orange; magenta is similar to fuchsia pink; and cyan is a bright blue.

2. Subtractive Color Mixtures (Pigments)

Color pigments, such as the paints used on paper, are...

Line Projections in Descriptive Geometry

Oblique Line Projections

For oblique line projections, both the horizontal projection (r1) and the vertical projection (r2) intersect at the reference line (LT).

Frontal Line Projections

A frontal line is straight and parallel to the Vertical Plane (PV). Its horizontal projection (r1) is always parallel to the reference line (LT).

Lines Parallel to the Reference Line (LT)

For lines parallel to the reference line (LT), both horizontal (r1) and vertical (r2) projections are parallel to the LT.

Vertical Line Projections

A vertical line is perpendicular to the Horizontal Plane (PH). Its vertical projection (r2) is perpendicular to the reference line (LT).

Edge View Projections (Perpendicular to PV)

When a straight...

Egyptian Sculpture: Materials and Purpose

Drawing upon the geological resources of Egypt, sculptors utilized all kinds of rocks and stones, ranging from the hardest (basalt, granite) to the softer varieties (gypsum, limestone). They were also experts in carving wood (acacia, sycamore) and bronze.

Egyptian sculpture was primarily religious, courtly, and funerary. It involved carving images of gods, often taking animalistic forms. The representation of the pharaohs is frequently repeated; they were presented with their crowns and decorated with the insignia of royalty and other details. Family members and state officials (scribes, priests) were also sculpted.

As a funerary art, sculpture was represented in tombs by a series of images (statues or...

Standards for Technical Drawing Lettering

Lettering involves the use of letters, numbers, and symbols. Since a clear picture alone cannot express everything (such as dimensions and specific details), characters are used in technical drawings. These are standardized according to UNE 1 034-75 and must meet requirements for readability, consistency, and suitability for photographic reproduction.

Types of Lettering Styles

• Italics: The characters in this lettering style are inclined at 75 degrees toward the right relative to the horizontal. This may be Type B, which is commonly used in the metallurgical industry.
• Vertical: This lettering style is used in plans for the construction industry as well as in electrical and electronic schemes. It can also

Focal Length: Understanding Wide-Angle, Medium, and Telephoto Lenses

1. Wide-Angle Lenses

Wide-angle lenses capture a wider field of view, but they can distort straight lines near the edges of the frame, making them appear curved outward. Additionally, wide-angle lenses exaggerate depth, making objects in the foreground appear larger and those in the distance appear farther away. As a result, when figures move toward or away from the camera, a wide-angle lens makes them seem to cover ground more rapidly.

2. Medium Lenses

Medium lenses, typically around 50mm in length, aim to avoid noticeable perspective distortion. With a medium lens, horizontal and vertical lines are rendered as straight and perpendicular.

3. Telephoto Lenses

Telephoto lenses have...

Architectural Elements of the Dome

The exterior of the Florence Cathedral highlights its magnificent dome, which features a distinctive pointed ogival profile. The dome is composed of three primary parts:

• The Tambour (or Light Body): This octagonal section features eight panels, formed by slabs of green and white marble.
• The Oculus (or "Egg"): A circular window, serving as a classic architectural element and light source.
• The Cupola Proper: This main section of the dome is formed by eight triangular trusses. The overlying material consists of red brick, surrounded by prominent nerves that discharge weight from the drum. The lantern, crowning the dome, is made of white marble.

Engineering Challenges and Innovations

The construction of the dome presented...