pigment

Whether you’re looking for a quick answer to a specific question (such as, When does Daylight Saving Time start this year?) or want to delve deeply into a topic (such as, How can I learn to write obscure forms of ancient poetry?), you’re likely to discover something new—and embark on a fun, exploratory journey in the process.
Causes of Colors: Shedding light on the age-old question, "Why is the sky blue?", this exhibit also enables visitors to explore the scientific origins of color, including the relevance of vibrations, gas excitations, diffraction, and energy bands.
Color Vision and Art: Exploring the relationships between modern art and the science of color and human vision, this exhibit uses artwork and its historical context to explain what we see and why we see it in a certain way. Other topics include color interactions, peripheral vision, luminance, and equiluminance.
Calendars through the Ages: Calendars may seem mundane, but they have a fascinating backstory. This exhibit explores the rich histories of a variety of calendars, the mathematics behind calculating days, weeks, months, and years, and why we organize our lives in accordance with the sun and the moon.
Daylight Saving Time: While the adoption of Daylight Saving Time is almost always rife with controversy, most of the world has implemented it. This exhibit explores the standardization of time and the origins of Daylight Saving Time, while providing up-to-date information on if and when countries around the globe observe it.
Poetry through the Ages: Tracing the origins of European poetry from its ancient Greek roots and its evolution through history to modern times, this exhibit is designed to move poetry into the mainstream. With an interactive tour and multimedia content, the exhibit explains both the history and mechanics of 18 poetry forms, and gives visitors “recipes” so that they can write their own poetry.
Investigating Bellini’s Feast of the Gods: Early in the 16th century, Giovanni Bellini painted the Italian Renaissance masterpiece The Feast of the Gods. However, ten years later, the renowned Titian painted over the masterpiece. Using IDEA’s innovative data display techniques, this exhibit explains the scientific analyses conducted by the National Gallery of Art. (A version of the exhibit was produced in Spanish for the Prado in Madrid.)
Van Gogh’s Letters: On December 13, 1872, Vincent van Gogh (1853-1890) wrote to his brother Theo, "...We must be sure to write to each other regularly..." Over the next two decades, hundreds of letters were shared between the brothers and with others, giving us an unparalleled record of the artist’s creative and spiritual life.
Pigments Through the Ages: Explore the historical origins and the science of color pigments, in rich detail and with the aid of beautiful, interactive imagery, while being treated to an interactive explanation of how paintings are created using myriad colors and types of paint.
Family Tree of the Greek Gods: This interactive genealogic map employs innovative radial mapping and an exploratory user interface that invites visitors to learn about the gods and goddesses who brought order and meaning to the universe of the ancient Greeks.
Butter: Explore the historical origins, composition, science, and uses of this wonderfully smooth, rich indulgence!

Triangulos

TRIÁNGULOS LAMINA:1: Dibuja puntos situados  por toda la hoja de trabajo. 
 2: Une cada punto con los más cercanos con  regla. Después de hacer líneas dentro de los triángulos en diferentes formas. 

BASIC CONCEP OF ARTS

Geometry: is a science that studies the shapes, the points and the lines. It comes from the Greek words "geo" and "metry".Point: is the place where two lines intersect.Line: is an infinit write of a sucesion of infinit points.
Ray: it´s a line that has beggining and doesn´t have end.
Line segment: it´s a line with two endpoints.
End point: is the point where a ray or a segment line ends or starts.
Freehand: draw without any instruments of drawing.
Compass: it´s an instrument to make circles and arcs and take messures.
Length: measure of something from end to end.

 
DEFINITIONS ABOUT ANGLES AND LINES
Parallels: lines which never intersect themselves.
Perpendicular: two lines that when intersect, they form four right angles.
Oblique: lines that aren´t perpendiculars and parallels.
Angle: two lines that have a common point (vertex).
Right angle: angle of 90º
Obtuse angle: angle of more than 90º
Acute angle: angle of less than 90º
Flat angle: angle of 180º
Complet angle: angle of 360º
Complementary angles: two angles that form 90º
Suplementary angles: two angles that form 180º
DEFINITIONS ABOUT  THE CIRCLES
Circle: set of points at the same distance to the center
Circumference: it's the full length of a circle. The complete distance a round a circle is the perimeter
Center: point equidistant to any of the points of a circle
Radius: it´s a line from the center and the perimeter
Diameter: line segment that goes from a point of the perimeter to another point, passing for the center of the circle
Chord: line that connects two points of the circle not through the center
Arc: segment of a circle
Arrow: segment that divides an arc in the middle. It´s the center of the chord
Tangent: line that only touch a point of a circle
Outer: element that doesn´t touch the circunference
Inner: element inside the circumference
Concentric circles: circles with different radius but place in the plane sharing the center
  

DEFINITIONS ABOUT TYPES OF POLYGONS



Star polygons:is a particular polygon case with a star shape, created out of linking together non consecutive
Inscribed polygons: they are polygons place inside circle so all the vertex
Circumscribed polygons: they are polygons sorrounding a circle, being its sides tangent to the circle.


CLASIFICATION OF POLYGONS

Convex polygons: when any line pass for two points of the shape.
Non-convex polygons:when one line through the polygon but it's cut any parts.
Equiangular: all polygons that have angles, vertex and side equals.
Equilateral: all sides of edges are of same length
Regular: all theirs vertices, angles and sides are equal.
Irregular: show different angles and length for their sides.
Polygons parts
Sides: each of line segments that form a polygon.
Vertex: the points in which to sides meet.
Diagonal: segment line that conects non consecutive vertices.
Perimeter: the path around the polygon, the adition of all its sides.
Center: it is apoint equidistance from all the vertices.
THE TRIANGLE
Triangle: it is a flat figure with three sides and three angles.
According to the sides it can be:

Equilateral triangle: is a triangle with sides and vertices equal
Isosceles triangle: is atriangle with two equal sides and angles equal.
Scalen triangle: is a triangle with 3 different sides.

According to the angles it can be:

Right triangle: is a triangle which has one right angle.
Obtuse triangle: is a triangle which has one angle more than 90º
Acute triangle: is a triangle which has three angles less than 90º

QUADRILATERALS
Quadrilaterals: they are polygons with four sides and four angles

HALLOWEEN

HALLOWEEN HISTORY                                                                                                         
Halloween is an annual holiday, celebrated each year on October 31, that has roots in age-old European traditions. It originated with the ancient Celtic festival of Samhain, when people would light bonfires and wear costumes to ward off ghosts. In the eighth century, Pope Gregory III designated November 1 as a time to honor all saints; soon, All Saints Day incorporated some of the traditions of Samhain. The evening before was known as All Hallows Eve, and later Halloween. Over time, Halloween evolved into a day of activities like trick-or-treating and carving jack-o-lanterns. Around the world, as days grow shorter and nights get colder, people continue to usher in the season with gatherings, costumes and sweet treats.