Thursday, 30 May 2013

Why is Cimabue often regarded as the 'first modern painter'?

Cimabue was a major artist working in Florence at the end of the 13th century. He was born in Florence in 1240 AD. When Cimabue was learning to paint i n the 1260's, Italian painters were still copying the style of Byzantine a rt which always had gold backgrounds. It generally showed saints and angels, as well as Jesus and Mary in very formal, stiff positions, to show how important these figures were, and that they were not like real people. The figures were flat, and very little effort was made to show 100 Great Painters their muscles, or the shadows that would make them look real.

Cimabue was associated with a style of painting known as gothic art, and he was also an important forerunner of the later international gothic style. He introduced a lifelike treatment of traditional religious subjects, and was also famous for his wall paintings. His most famous work, 'Madonna Enthroned', stood three and half metres high! He is considered by some experts to be the first 'modern painter'.

Source: Manorama Tell Me Why

Wednesday, 29 May 2013

Why are the paintings at the Grotte Chauvet special?

Grotte Chauvet is a beautiful painted cave in France. It has several very large galleries with more than 300 paintings and engravings that were probably done 32,000 to 30,000 years ago. The paintings show rhinoceroses, felines, bears, owls and mammoths, as well as animals such as owls, hyenas and panthers which have never - or very rarely - been found in previous paintings of this period. In fact, some archaeologists believe that these may be the oldest known paintings in the world, and therefore, they are very special.

Source: Manorama Tell Me Why

Tuesday, 28 May 2013

Why is it said that the history of painting began with cave paintings?

We know that early Man lived in caves. He lived mainly by hunting, and gradually, he began to decorate the rock faces in the recesses of caves. Early Man created images of the bison and
reindeer which he hunted, and these were the very first paintings ever created.

Prehistoric cave paintings have been discovered in many parts of the world, from Europe and Africa, to Australia. Africa has some of the earliest paintings and rock engravings to have been dated. Nearly 30,000 years old, they were discovered in 1969 on the rock face in a cave in Namibia. But the most numerous, and the most sophisticated of prehistoric paintings are on the walls of caves in Southwest France and Northern Spain.

Source: Manorama Tell Me Why

Wednesday, 6 June 2012

Transit of Venus on 6th June 2012

The planet Venus made a slow transit across the face of the sun on Tuesday, the last such passing that will be visible from Earth for 105 years.Transits of Venus happen in pairs, eight years apart, with more than a century between cycles. During Tuesday's pass, Venus took the form of a small black dot slowly shifting across the northern hemisphere of the sun.Armchair astronomers watched the six-hour and 40-minute transit on the Internet, with dozens of websites offering live video from around the world.Closeup views from the Prescott Observatory in Arizona, fed into Slooh.com's webcast, showed a small solar flaring in the making just beneath Venus' sphere.Tuesday's transit, completing a 2004-2012 pair, began at 6:09 p.m. EDT
 
The planet Venus can be seen on its transit of the Sun, from New Delhi June 6, 2012. Venus last made a visible pass in front of the sun in 2004 but will not make another visible transit until 2117.

Monday, 28 May 2012

Effective Ways to Prevent Hair Loss for Men

Stress causes dandruff, leading to hair loss
If it's starting to snow over your shoulders, then you're working too hard. "The fungus which causes dandruff is present on all scalps," says Dr Rakesh Sood, a New Delhi-based trichologist.

"But the problem is exacerbated when your immune system is weakened." An American Academy of Dermatology research confirms that stress is a key reason for low immune function. Can't drop out of the rat race just yet? The study suggests using tea tree oil-based shampoos to root out the worst of the dandruff situations.

Wearing hats causes hair loss
For that to happen, the hat would have to be so tight as to cut off circulation to the follicles. If that were the case, the hat would likely be much too tight for you to wear comfortably...so it's not likely. Wearing a tight hat can, however, cause hair breakage and damage.

Dermatologists say that a hat can cause damage to the scalp by blocking proper air circulation. Without a well-ventilated headgear, sweat can clog up the pores in the scalp. Go for a hat with a brim to shield your face from sun.

Regular haircuts make hair grow faster and thicker
Getting frequent haircuts is a good way to keep existing hair healthy by removing damaged, split ends. But a regular cut has no effect on your hair's growth rate or its thickness, says hair stylist Vidya Tikari.

This common misconception comes from the fact that hair is thicker at the base than it is at the tip, so it appears thicker at first. Cutting your hair does not affect hair growth at all; it will grow about half an inch each month no matter what.

Hair loss can be prevented by frequent hair brushing or standing on your head
Some people have maintained that constant brushing increases scalp circulation and thus boosts hair growth. However, because alopecia is primarily caused by the presence of dihydrotestosterone and your genetic predisposition rather than blood flow, hair brushing will have no positive effect on hair growth. Similarly, standing on your head might give you a head rush from the increased blood flow, but it won't have any effect on your hair.

Growing hair longer will hide baldness
Actually, in almost every circumstance, growing hair longer makes the thinning and baldness appear much more noticeable. When the sides and back are worn fuller, it makes the top appear thinner.

"If you can see scalp on the top, cut the sides short enough so you can see an equal amount of scalp," says Tikari. This will give an overall uniform appearance and take the emphasis off the thinning areas

Monday, 21 May 2012

How does Sound proof and Bullet proof glasses works?

Sound proof glass uses several separate layers of glass. These layers make it difficult to another. Some of the sound get reflected when it passes through a surface and experiences a change in speed.

Sound travels much more slowly in air than in glass. When sound passes in on out of a glass pane, most of the sound is reflected backward. If two rooms are separated by three or four sheets of glass, and each of these glasses are carefully sealed into place such that there are no holes through which sound can be leaked, then a very small amount of sound can make it through the overall window and most of the sound will get reflected back.

A bulletproof glass is a multilayered sandwich of glass and plastic. It is like the front windshield of a car but having many more layers. When a bullet hits the surface of this sandwich, it starts to tear into the layers. However, before the bullet manages to burrow all the way through to the final layers, the bullet loses momentum. The bullet’s energy and momentum are transferred to the layers of glass and plastic and hence it leaves the one inside the bullet proof glass with no harm.