What are the characteristics of cave art? Representations in caves, painted or otherwise, include few humans, but sometimes human heads or genitalia appear in isolation. Hand stencils and handprints are characteristic of the earlier periods, as in the Gargas cave in the French Pyrenees. What is the oldest rock art in Australia? Australian scientists have […]
How can chromatic aberration in a refracting telescope be corrected?
How can chromatic aberration in a refracting telescope be corrected? Chromatic aberration can be quite well corrected by use of an achromatic doublet. Here, a positive biconvex lens is combined with a negative lens located behind it with greater dispersion. Thus partially compensates for the chromatic aberration. But even then there is some residual chromatic […]
How long does it take to break a habit?
How long does it take to break a habit? Research from 2012 looking at habit formation suggests 10 weeks, or about 2.5 months, is a more realistic estimate for most people. The main evidence-backed time frame for habit breaking comes from 2009 research, which suggests it can take anywhere from 18 to 254 days. Is […]
What does form mean in architecture?
What does form mean in architecture? Form refers to the shape or configuration of a building. Form and its opposite, space, constitute primary elements of architecture. The reciprocal relationship is essential, given the intention of architecture to provide internal sheltered space for human occupation. What are the forms of architecture? Here are 8 of the […]
What is the meaning behind Aboriginal art?
What is the meaning behind Aboriginal art? Symbols in Aboriginal Art. The Aboriginal people have for thousands of years used artistic designs and symbols to convey stories and messages which are incredibly important in their culture. The iconography used when applied to any surface – body or object then covert it to having religious or […]
How did chavin elites maintain power?
How did chavín elites maintain power? Chavín had a small, powerful elite that was legitimized through a claim to divine authority. These shamans were able to control and influence local citizens (probably partially through the use of psychotropic drugs), and were able to plan and carry out construction of temples and stone-walled galleries. Who was […]
Is a printmaking technique from the beginning of the 18th century?
Is a printmaking technique from the beginning of the 18th century? Explanation: Crayon was the printmaking technique used in the early 18th Century used for the reproduction of brown and red chalk drawings. Is charcoal made by mixing carbon and clay? Charcoal is made out of wood and has little to do with clay. It […]
What are the features of cave paintings in Paleolithic Age?
What are the features of cave paintings in Paleolithic Age? In some caves, these animals were anthropomorphized, containing certain human characteristics, like bipedalism or human body parts. This was rare, but images of actual humans were even rarer. To round it out, ancient artists also created abstract geometric shapes and patterns, often intermingled with other […]
What specifies the number of beats in a bar?
How can you control the exposure of a photo?
How can you control the exposure of a photo? In photography, exposure is a critical element that determines what is actually recorded on a camera’s image sensor. There are three adjustable elements that control the exposure – ISO, Aperture, and Shutter Speed. How do I take a picture with a slow shutter speed? Turn the […]