Saturday, July 12, 2008
Friday, July 04, 2008
Giving birth
World Birth Rates (2008 est.)
* 20 births/1,000 population
* 128.9 million births per year
* 353,015 births per day
* 14,709 births each hour
* 245 births each minute
* 4 births each second of every day
Age Structure of World's Population (2008 est.)
* 1.8 billion people under age 15 years (27%)
* 4.4 billion people age 15-64 years (65%)
* 507 million people are 65 years and over (8%)
Windmill
The first known practical windmills were the vertical axle windmills invented in eastern
Keep an eye - close look
The eyes are organs that detect light, and send signals along the optic nerve to the visual areas of the brain. The simplest "eyes", in even unicellular organisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms and may allow the organism to seek out or avoid light. More complex optical systems with resolving power have come in ten fundamentally different "designs", and 96% of animal species possess a complex optical system.
Call out load - the international language
Languages of the world - there are 6,912 known living languages in the world today. 347 (or approximately 5%) of the world's languages have at least one million speakers and account for 94% of the world's population. By contrast, the remaining 95% of languages are spoken by only 6% of the world's people. Languages spoken by the most people are Chinese (Mandarin), Spanish, English, Hindi, Portuguese, Bengali, Russian, Japanese, German (standard).
Mosque - Masjid-i-Jahan Numa (Jama Masjid )
The Masjid-i-Jahan Numa, commonly known as the Jama Masjid of
Masjid-i-Jahan Numa means "the mosque commanding a view of the world", and the name Jama Masjid is a reference to the weekly congregation observed on Friday (the yaum al-jum`a) at the mosque. The courtyard of the mosque can hold up to twenty-five thousand worshippers. The mosque also houses several relics in a closet in the north gate, including a copy of the Qur'an written on deer skin.
Casa grande - Sinai peninsula
There are moments in Sinai when one feels as if the history of the entire world can be read in its stones. Indeed, the land here is a monument to the antiquity of life on Earth, from the fossilized reef animals of Ras Mohammed to the mines of El Maghara, whose copper fueled the Bronze Age. In many places visitors from thousands of years ago literally recorded their passage in stone, as at the Rock of Inscriptions near Dahab. And at Serabit El-Khadem, near ancient mining sites, archaeologists have discovered carvings that record the very earliest emergence of our alphabet. The Sinai was inhabited by the Monitu and was called Mafkat or Country of Turquoise. From the time of the First dynasty or before, the Egyptians mined turquoise in Sinai at two locations, now called by their Arabic names Wadi Maghareh and Serabit el-Khadim. The mines were worked intermittently and on a seasonal basis for thousands of years. These may be the first known mines.
Thursday, July 03, 2008
Smiling
In physiology, a smile is a facial expression formed by flexing those muscles most notably near both ends of the mouth. The smile can also be found around the eyes. Among humans, it is customarily an expression denoting pleasure, happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it can be known as a grimace. There is much evidence that smiling is a normal reaction to certain stimuli as it occurs regardless of culture. Happiness is most often the motivating cause of a smile. Among animals, the exposure of teeth, which may bear a resemblance to a smile, is often used as a threat or warning display - known as a snarl - or a sign of submission. In chimpanzees, it can also be a sign of fear. The study of smiles is a part of gelotology, psychology, and linguistics, comprising various theories of affect, humor, and laughter.
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