It sounds different because it is different. "When you speak, the vocal folds in your throat vibrate, which causes your skin, skull and oral cavities to also vibrate, and we perceive this as sound," explains Ben Hornsby, a professor of audiology at Vanderbilt University. The vibrations mix with the sound waves traveling from your mouth to your eardrum, giving your voice a quality — generally a deeper, more dignified sound — that no one else hears.

sound_wave

Through a loudspeaker or recording device, you pick up sound only through air conduction. "The sound we're used to hearing has a lower frequency from the bone vibrations," Hornsby says. "We like that because it sounds rich and full." Many people cringe at the playback sound because our brain struggles to accept that this foreign voice is our own !!!

 

Njoy … fingerscrossed



A team in the southwest German city of Darmstadt first produced 112 in 1996 by firing charged zinc atoms through a 120-meter-long particle accelerator to hit a lead target.

"The new element is approximately 277 times heavier than hydrogen, making it the tabel heaviest element in the periodic table," the scientists at the GSI Helmholtz Center for Heavy Ion Research said in a statement late on Wednesday.

The zinc and lead nuclei were fused to form the nucleus of the new element, also known as Ununbium, Latin for 112.

The International Union of Pure and Applied Chemistry (IUPAC), confirmed the discovery of 112 by the team led by Sigurd Hofmann at the Helmholtz Center. IUPAC has asked for an official name for the element to be submitted.

John Jost, executive director of IUPAC in North Carolina, told Reuters that creating new elements helped researchers to understand how nuclear power plants and atomic bombs function.

The atomic number 112 refers to the sum of the atomic numbers of zinc, which has 30, and lead, which has 82. Atomic numbers denote how many protons are found in the atom's nucleus.

Scientists at the Helmholtz Center have discovered six chemical elements, numbered 107-112, since 1981. The remaining five elements have already been recognized and named.

In 1925, scientists discovered the last naturally occurring element on the periodic table. Since then researchers have sought to create new, heavier elements.

Proving the existence of atoms with such a high mass, the so-called superheavy elements, is a complex procedure because they exist for only tiny fractions of a second and then decay radioactively into other elements.

from Yahoo News

Njoy … fingerscrossed



The map is the culmination of an assessment carried out by the US Geological Survey (USGS). An estimated 30% of the world's undiscovered gas and 13% of its undiscovered oil may be in the Arctic, according to a map published on Friday.

_45844050_gas_1map466x408

Writing in the journal Science, its authors say the findings are "important to the interests of Arctic countries".

But, they add, they are unlikely to substantially shift the geographic pattern of world oil production.

According to the new map, the majority of oil is likely to be found underwater, on continental shelves.

Surrounding nations, including Russia, United States, Canada, Denmark and Norway, have all already sought to assert their jurisdiction over parts of the Arctic.

In 2007, two Russian civilian mini-submarines descended to the seabed to collect geological and water samples and to drop a titanium canister containing the Russian flag.

And do i still need to write that , due to this finding … there might be ( for which we are sure ) “conflicts of interests” in surrounding countries … lets hope that it don’t start any active war !!!

Some parts are From , BBC

Njoy …



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My daughter has a snake, a tiny 8-inch-long, innocuous corn snake, and I hate that thing.
I have seen it, and once, in the name of pretending to be a good mother, I actually touched it. But I hope to never see or touch it again as long as I live.
As an anthropologist, I know that most people around the globe hate snakes (and yes, I know there are people like my daughter who love these disgusting reptiles, but really, they are freaks, all of them except my daughter). The fear of snakes is called ophidiophobia, which is apparently a subset of herpetophobia, the more inclusive fear of reptiles. Although ophidiophobia might seem like a pathology — how often, really, do we encounter poisonous snakes? — anthropologist Lynn Isbell of the University of California, Davis, suggests in her new book "The Fruit, The Tree, and the Serpent: Why We See So Well" (Harvard University Press, 2009) that this fear is not only part of our nature, it's also a good thing.

 

snake

( no , its not snake of my favorite Metal Gear Solid )

Isbell came to this conclusion while studying monkeys. One day she put a fake snake into the large outdoor cage of Rhesus macaques at the Davis Primate Center only to see a real snake slither into the cage. About half the 80 resident monkeys gathered around the real thing, mobbing it, calling out in alarm. The fear of snakes, Isbell reasoned, must be deeply embedded in our primate history.
More surprising, Isbell claims that the fear of snakes has driven the evolution of our excellent visual abilities. Primates, including humans, see really well. Sure, our vision is not as good as eagles, but still, we see in color and have very good 3-D perception. We also have a pit in each retina that gives us the ability to spot small objects, like little things in bushes. In general, Isbell explains, the neurology of vision, that is what we see and how we perceive it, is expanded in primates over other mammals.
Anthropologists have always assumed that this great vision was a necessary adaptation for life in the trees. Leaping around the canopy requires depth perception, and color vision comes in handy when looking for ripe fruits and leaves.
Going against the standard thinking, Isbell thinks that spotting snakes is the real reason we see well. Snakes, it seems, were the oldest known predator on primates, and they have been the most persistent predators over millions of years. Today, monkeys are scared of them and humans make horror films about them, like "Snakes on a Plane."
Isbell reasons that our vision co-evolved with venomous snakes having monkeys for dinner. As a result, humans have good vision too. But Isbell thinks there might be even more to the snake story for humans.
People are famous for pointing at things, especially things that scare us. And we usually say something like "Ahhh, snake" (or "spider" or "gun") when pointing at something that elicits fear. It may be that the neurological system that brought us good vision to deal with snakes also pushed for the evolution of human communication. And thank goodness for that development because it allows me, a human with naturally good vision and a highly evolved fear of snakes, to say to my snake loving daughter, "Get that thing away from me."

from Live Science

Njoy …