Sand Glass
Encyclopedia
Sand Glasses are works of craftsmanship in which two blades of glass
show an amount of sand
in two colors, which is immersed in water. When the sand glass is turned, the sand, tradicionaly in black and a light color, moves down, creating new dunes and creating new drawings as the colors settle.
It is a piece of craftmanship found in Brazil
, on the streets and in craftsmanship sale places, in many colors and sizes.
Glass
Glass is an amorphous solid material. Glasses are typically brittle and optically transparent.The most familiar type of glass, used for centuries in windows and drinking vessels, is soda-lime glass, composed of about 75% silica plus Na2O, CaO, and several minor additives...
show an amount of sand
Sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal...
in two colors, which is immersed in water. When the sand glass is turned, the sand, tradicionaly in black and a light color, moves down, creating new dunes and creating new drawings as the colors settle.
It is a piece of craftmanship found in Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
, on the streets and in craftsmanship sale places, in many colors and sizes.