Notes, summaries, assignments, exams, and exercises for Visual arts and art education for Other courses

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

Sulfate Minerals

Sulfide and Sulfosalt Mineral Properties

This document details the key physical and chemical properties of various sulfide and sulfosalt minerals, focusing on characteristics such as Hardness, Habit, Fracture, Tenacity, Color, Luster, Diaphaneity, and Streak.

Hardness (H)

Measured on the Mohs scale.

Fracture

How the mineral breaks (e.g., Conchoidal, Irregular).

Tenacity

Resistance to breaking (e.g., Fragile, Sectile, Malleable, Flexible).

Luster (Brillo)

Appearance in reflected light (e.g., Metallic, Adamantine, Resinous).

Diaphaneity

Transparency (Opaque or Translucent).

Streak (Raya)

Color of the mineral's powder.

Argentite ($ ext{Ag}_2 ext{S}$)

• Chemical Formula: $ ext{Ag}_2 ext{S}$
• Habit: Filamentary, Dendritic, Subconchoidal.
• Color: Black.
• Luster: Metallic,

Map Projection

A map projection is a system of ordered correspondence between points on the curved surface of the Earth and a flat surface. These points are located on a network of meridians and parallels, in the form of a mesh (creating a series of distortions). Good projections must have two characteristics: to retain the areas (equivalence) and retain angles (conformity). Depending on which point is considered the center of the map, it is distinguished between:

• Polar projection: The center is one of the poles.
• Equatorial projection: The center is the intersection between the Equator and a meridian.
• Oblique or slanted projection: The center is any other point.

Functions of the Projections

Conformal Projections

A map projection is conformal when...

What Is Projection?

Definition: Projection is the process of representing a three-dimensional (3D) object on a two-dimensional (2D) projection plane. It is used to display 3D objects on a computer screen.

Parallel Projection

In parallel projection, all projection lines are parallel to each other.

Types of Parallel Projection

• Orthographic Projection
• Oblique Projection

1. Oblique Projection

In oblique projection, projection lines are parallel but inclined to the projection plane.

Types of Oblique Projection

• (a) Cavalier Projection: Receding lines are drawn at 45°. Depth is shown at full scale, making the object appear longer in depth.
  • Angle: 45°
  • Depth Scale: 1
• (b) Cabinet Projection: Receding lines are drawn at 45°. Depth is reduced to half of the actual

Visual Aid Elements and Purpose

Words + colour + shapes + pictures + whitespace = visual aid used to convey messages graphically.

What Visuals Convey

• Ideas
• Feelings
• Attitudes and values
• Sequences
• Events
• Facts

Core Elements: Words, Letters, and Whitespace

The goal of words and letters is to optimize legibility.

Blank spaces optimize legibility.

Words and letters are the most important graphic elements used to convey information.

Simple Pictures and Colour

Simple pictures facilitate quick comprehension.

Colour is used to grab attention.

Lines direct attention and clarify meaning.

Guidelines When Working with Words and Letters

• The larger the audience, the bigger the print. Use CAPS of 1½ inches in height or 36-point font when appropriate.
• Separation of ideas increases

Table Styles

/* 1. Agregar borde a todas las celdas */
table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    padding: 10px;
    text-align: left;
}

/* 2. Alternar colores de fondo en las filas */
tr:nth-child(odd) {
    background-color: white;
}

tr:nth-child(even) {
    background-color: lightgray;
}

/* 3. Aplicar fondo amarillo a la primera fila */
tr:first-child {
    background-color: yellow;
}

/* 4. Cambiar color de fondo al pasar el mouse */
tr:hover {
    background-color: lightblue;
}

Card Styles

/* 1. Estilos generales para las tarjetas */
.tarjeta {
    background-color: #f5f5f5;
    padding: 20px;
    margin: 15px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, background-color...

Tequila & Margarita Cocktail Recipes for Bars

English Exam Preparation

Types of TV Programmes

• Advert: Propaganda
• Cartoon: Dibujos animados
• Chat show: Programa de entrevistas
• Cookery programme: Programa de cocina
• Current affairs programme: Programa de actualidad
• Documentary: Documental
• Drama: Drama
• Live sport: Deporte en directo
• Period drama: Drama de época
• Quiz show: Concurso
• Reality show: Reality show
• The news: Noticias
• The weather forecast: El tiempo

Nature and Farm Vocabulary

• Nature: Branch (rama), bush (arbusto), cliff (acantilado), fence (valla), field (campo), gate (verja), grass (césped), hedge (seto), hill (colina), lake (lago), leaf (hoja), mud (barro), path (camino), rocks (rocas), sticks (palos), stones (piedras), stream (arroyo), valley (valle), well (pozo), wood (bosque).
• On a farm: Barn