The World Health Organization (WHO) estimates that exposure to
smoke from the simple act of cooking is the fifth worst risk factor for disease
in developing countries, and causes almost two million premature deaths per year
– exceeding deaths attributable to malaria or tuberculosis.
Group items matching
in title, tags, annotations or urlBBC - Acids, bases and metals - 81 views
-
A great animated and interactive science presentation from the BBC about acids, bases and metals. http://ictmagic.wikispaces.com/science
The Comic Book Periodic Table of the Elements - 177 views
The Effects Of The California Gold Rush - 22 views
Physicists uncover novel phase of matter - 22 views
-
A team of physicists led by Caltech's David Hsieh has discovered an unusual form of matter-not a conventional metal, insulator, or magnet, for example, but something entirely different. This phase, characterized by an unusual ordering of electrons, offers possibilities for new electronic device functionalities and could hold the solution to a long-standing mystery in condensed matter physics having to do with high-temperature superconductivity-the ability for some materials to conduct electricity without resistance, even at "high" temperatures approaching -100 degrees Celsius.
Health - 0 views
-
-
Women in developing countries are also at risk of head and spinal injuries, pregnancy complications, and maternal mortality from the strenuous task of carrying heavy loads of firewood or other fuels. Frequent exposure to cookstove smoke can also cause disabling health impacts like cataracts, which affect women more than men, and is the leading cause of blindness in developing countries.
-
Rudimentary wood-fired cookstoves and open fires emit fine particles, carbon monoxide, and other pollutants at levels up to 100 times higher than the recommended limits set by WHO
- ...5 more annotations...
the Truth About Being a Hero - WSJ - 14 views
-
We all want to be special, to stand out; there's nothing wrong with this. The irony is that every human being is special to start with, because we're unique to start with.
-
n the military I could exercise the power of being automatically respected because of the medals on my chest, not because I had done anything right at the moment to earn that respect.
-
I knew many Marines had done brave deeds that no one saw and for which they got no medals at all.
- ...20 more annotations...
Göbekli Tepe - Pictures, More From National Geographic Magazine - 67 views
-
The Birth of ReligionWe used to think agriculture gave rise to cities and later to writing, art, and religion. Now the world’s oldest temple suggests the urge to worship sparked civilization.
-
Before them are dozens of massive stone pillars arranged into a set of rings, one mashed up against the next. Known as Göbekli Tepe (pronounced Guh-behk-LEE TEH-peh), the site is vaguely reminiscent of Stonehenge, except that Göbekli Tepe was built much earlier and is made not from roughly hewn blocks but from cleanly carved limestone pillars splashed with bas-reliefs of animals—a cavalcade of gazelles, snakes, foxes, scorpions, and ferocious wild boars. The assemblage was built some 11,600 years ago, seven millennia before the Great Pyramid of Giza. It contains the oldest known temple. Indeed, Göbekli Tepe is the oldest known example of monumental architecture—the first structure human beings put together that was bigger and more complicated than a hut. When these pillars were erected, so far as we know, nothing of comparable scale existed in the world.
-
At the time of Göbekli Tepe's construction much of the human race lived in small nomadic bands that survived by foraging for plants and hunting wild animals. Construction of the site would have required more people coming together in one place than had likely occurred before. Amazingly, the temple's builders were able to cut, shape, and transport 16-ton stones hundreds of feet despite having no wheels or beasts of burden. The pilgrims who came to Göbekli Tepe lived in a world without writing, metal, or pottery; to those approaching the temple from below, its pillars must have loomed overhead like rigid giants, the animals on the stones shivering in the firelight—emissaries from a spiritual world that the human mind may have only begun to envision.
- ...15 more annotations...
1 - 9 of 9
Showing 20▼ items per page