Youtube

The word "youtube" was made from two words of English: "you", which means "you" and "tube", which come from a jargon that is much closer to "television". In other words it would be a "television by you." This is the main function of the phenomenon of the Internet: allow users loading, assist and share videos in digital format.

The Youtube was created in February 2005 by Chad Hurley and Steve Chen, two employees of a technology company based in San Francisco, USA. The site came under drawback was that file sharing of video, as these were very big, difficult what your email.

The site allows users to place their own videos on the network, and viewed by anyone worldwide. The Youtube uses the Macromedia Flash format to reproduce the content, and let users put video on their blogs and personal sites. All the potential of Youtube was recognized by the American magazine Time, which chose the site as the best invention of 2006.

Due to the great success of Youtube, in October 2006, the giant Google announced the purchase of the site for the amount of US $ 1.65 billion, unifying the services of their own site-sharing videos, Google Video, the Youtube. The main rule of the site is the non-sharing of videos protected by copyright, a fact that most of the time is not met.

Another fact that drew the attention of all was a judicial determination on the day 05 January 2007 which ordered the blocking of the site. This determination was caused by the controversial video involving a TV presenter, replacing carícias with her boyfriend on a Spanish beach. That led the blocking of about 5.5 million Brazilian users, which has aroused a wave of protests against the measure. On day 09 January was declared that the site should not be blocked.

It is estimated that each day about twenty thousand new videos are loaded and thirty million are assisted in Youtube.

You know from which emerge the sounds of thunder?

The thunder is the sound waves made by the movement of electrical loads in the atmosphere.
Result of the increase in air temperature where the radius is, the thunder can be dangerous, in the vicinity of where the phenomenon occurs. But often only cause fear to people more sensitive.

It is a sound wave that is generated by the heating of the main channel during the ascent of the discharge of return. The thunder reaches temperatures between 20 and 30 thousand degrees Celsius on 10 microssegundos (0.00001 seconds), through the heated air, it generated two waves:

1 - is a violent wave Supersonic Shock with speed several times greater than the speed of sound in air and in the vicinity of the site that the fall is a inaudível sound to the human ear.

2 - is a sound wave of great intensity to greater distances.

The means of spreading of thunder are the soil and the air. The frequency sound wave that is measured in Hertz, varies according to such means, and higher in the soil.

The sound you hear is the combination of three moments of the spread of the discharge in the air:

1 st-A short click.

2 - A sound intense and longer that the first click.

3 The expansion of the sounds serious atmosphere around the channel of the lightning.

The duration of thunder is calculated by the difference between the distances from the nearest point and the point farthest from the lightning channel of the observer. With that, we heard the sound at different moments, the thunder may last between 5 and 20 seconds.

Why tooth ache with cold water?

Feel pain in the tooth when eat something very cold, as an ice cream, for example, is something that many people already felt. For people with sensitive teeth, take some ice cream can be even more painful.

The sensation of pain occurs when the cold reaches of what they eat the flesh of the teeth, where the nerve endings are located. Thus, the central nervous system, as a warning signal and that is not appropriate, causes pain.

People with caries feel pain when eating something frozen in a manner much more frequent. This is due to the fact that the bacteria destroy the enamel of the tooth, a significant thermal insulation. The retraction of the gums also leaves the root of the tooth most exposed, leaving their flesh more vulnerable to changes in temperature.

Pluto, planet or not?

Pluto is some 5914 billion kilometers of the Sun and has only 2,400 kilometers in diameter. The discussion about considering-1930, by Clyde Tombaugh, but was reacendida recently with the discovery of hundreds of bodies orbiting the area of the Kuiper Belt , in 1992, by David Jewitt and Jane Luu. Some scientists believe the planet but one among these bodies frozen (the largest of them yet), which Pluto discount to the level of "minor planet" or "quasi-planet".

What would happen if the Earth to start spinning?

The end of the movement of rotation of the Earth has been featured in several films and science fiction story. In fact, not even the scientists know exactly what the real consequences of that for living beings, however, one thing is fact: it would be a disaster unimaginable. For most scientists, the more likely it is that life on Earth would be extinct.

For the teacher Marcelo Knobel, of the Institute of Physics at UNICAMP, if the Earth to rotate in, the planet would suffer the effects of inertia, since it would be a speed of approximately 900 km / h (at a latitude of 45 °) for zero. Thus, all the buildings on the land surface desabariam addition, fortíssimos earthquakes unparalleled assolariam the face of the Earth.

In the medium and long term, almost all ecosystems would be destroyed, probably some species of regions abissais could survive because they have a life based on quimiossíntese. Such destruction would be for the fact that, in these conditions, on land would last for one year, half of it with sunlight and the other half in the darkness, which destroy all living beings by extreme heat or cold.

For heat, by the fact that it would be a intense evaporation of water from ocean-side day, increasing the greenhouse effect, and therefore the temperature, which could reach exorbitant levels. For cold, by the fact that the night side of the ocean currents form very thick layers of ice, not derreteriam or if they were on the day, developed into a perpetual ice age.

Laptop moved the cows?

The organization One Laptop Per Child Project (OLPC) is seeking a new source of energy for notebooks education in places away: cows.

We plan to create a dynamo (quoted from an old Fiat) through a system of belts and braces using cows to pan it "wrote Arjun Sarwal, member of the NGO in an email published in the list of discussion of OLPC.

Sarwal and other members of the project are finalizing the design of the generator "moved the cattle."

The objective of the experiment is the development of alternative sources of energy and low cost that can be used in villages in India, one of the countries benefit from the project of digital inclusion.

Working near Mumbai, Sarwal said the group considered the use of solar energy, but the light of the Sun in the region was not strong enough. Moreover, there is no wind or sources of water sufficient to generate energy, and the cost to maintain an engine moved the gas would be too high.

"But the town has cattle in abundance in the fields. Then decicidmos develop something based on it, "explained Sarwal.

The dynamo used in the system was withdrawn from an old Fiat, vehicle widely used by the fleet of taxis in Mumbai, besides being cheap and available.

The OLPC is close to putting the laptop XO in production, but has faced delays and increased costs of the project. The portable that should cost 100 US dollars initially, had its final price high to 200 dollars. And the production is also going slowly.

After a production test conducted in August, the OLPC expected to start production on a large scale between the end of September and beginning of October. The date was changed to November 12, according to a Reuters report quoting the Chief Technology Officer (CTO) of the entity, Mary Lou Jepsen.

The African continent

The African continent is the second extension on the planet Earth and it is the hottest, and abrasadores deserts, dense tropical forests and vast savannahs full of life.

In many cultures, the people living mostly in the countryside, and increasingly those who go to the cities in search of work.
This continent is connected to Asia and only close the divides of Europe, the Straits of Gibraltar.

The Sahara is the largest desert in the world and covers almost a third of the African continent where the dunes highest in the world.

The amis valuable diamonds come from the mines of South Africa, are buried in deep underground.

The biggest river in the world is the Nile, 6650 km in length. Born simultaneously in Uganda and Tanzania, through Sudan and Egypt and to the Mediterranean Sea. Lard a total area of 3 million 349 thousand square kilometers, or one tenth of the total area of the African continent.

Curiosity about sex

Umbigo: To the peoples of the archipelago, Samoa (South Pacific), is the most exciting part of the body, not for nothing, lives always covered, while the body remains almost naked. Already on the islands Célebes (Indonesia), the tesão is at the knee.

Banguelas: Among the Nilotes (East Africa), when arriving at puberty, boys booted at least two incisor teeth to be more attractive.

Fofas: In Calabar (Nigeria) and the Marquesas Islands (Tahiti), the obese women are the most desirable. The teenagers are months in "huts for fattening to gain weight before being offered by the family for marriage.

Everything but this: The Eskimos of the tribes Copper and Netsilik offer women as a sign of hospitality. Among the Akhvakh, who live in southern Russia, called "receives" a teenager, who can make all the sex games, since the hímen remains intact.

Done the hand: Among the former cossacos (Ukraine), Sakha (Siberia) and Hopei (China), was customary parents masturbarem their children to acalmá them.

Speed: During ejaculation, the sperm travels at a speed of over 10 km / h comes out at a temperature of 36 degrees, the heart rate can be up to 150 per minute.

The sogra tá an eye: In Cali, Colombia, a woman can only have relations with your husband, and the first time this happens, her mother must be in the room to witness the act.

In only ten ejaculações man produces sperm enough to populate the whole world.

The time of loba: although women are 30% more sexually active during the full moon and the American prefer making love to the 23 hours, the estrogen and testosterone to reach its peak fall afternoon.

Fuck: Formerly, in England, no one could have sex without the consent of the King (unless they were a member of the royal family). When wanted to make love, they had to ask for the monarch, they delivered a plate, they should put in front of the door of your room while they had relations. The board said "Fornification Under Consent of the King." This is the origin of the word "fuck".

Oi! People! A man of the tribe of Walibri greets another with the penis and not with their hands.

Sexual Culture: the majority of women orgásmicas does not reach the climax through penetration.

More than three quarters of all men who sign magazines gays are married and fathers of families.

Duro in the fall: the aborigines of the Kalahari desert is semi-erect penis all the time.

The extremes: according to the Kinsey Institute, the largest penis erect measured 35.75 cm and the smallest, 4.81 cm.

The 12 countries recordistas

You know what is the richest country in the world? And the hottest? With higher female population? With younger?
These and other curiosities are addressed in this article published by the magazine "Weird World" in its edition of May 2005. Check:

MORE RICO - LUXEMBOURG
The inhabitants are fortunate justice to aristocratic heritage of the country, whose official name is Grand-Ducano of Luxembourg. The annual rent per captain of Luxembourg is 43,940 US dollars, according to the UN 2003.

MORE POBRE - ETHIOPIA
Ethiopia is the lantern when it is wealth. The annual rent per captain is only 90 dollars, almost 500 times less than that of Luxembourg. Just to compare, each Brazilian earns an average of 3,330 US dollars a year.

MORE QUENTE - LIBYA
Aside from Egypt and with part of its territory covered by desert (the Sahara in Libya), the country has recorded the highest temperature of the world: 58 ° C, in September 1992, the city of El Azizia.

MORE COLD - RUSSIA
The city of Oymyakon in Siberia, is a strong candidate sorveteria human. There thermometers often hit in the -50 ° C during winter. Oymyakon only lost to the Antarctic, which has marked -89.2 ° C, but not a country.

WOMEN WITH POPULATION GREATER - LATVIA
If you want a company off the sex fragile, try to spend their next vacation in that country, which has 1.2 million women and 1 million men - a relationship 1.2 to 1.

BIGGEST MEN WITH POPULATION - UNITED ARAB EMIRATES
The 804 thousand women of the United Arab Emirates can choose between 1.6 million men in the country. The ratio of 2 men by women is the highest in the world.

WITH MORE YOUNG - YEMEN
In this small country of the Middle East, half the population is up to 15 years of age. This is also the average age of the country, which has more than 7.3 million children and adolescents.

WITH MORE ELDERLY - JAPAN
The Japanese population has, on average, 41 years - 15 to more than the world average of 26 years. Nearly 30 million Japanese are over 60 years old. And the female life expectancy of 85.2 years to come.

The LESS POVOADO - MONGOLIA
If you go through an area of one square kilometer in Mongolia, with luck find two people. In the country, the population density is only 1.5 per capita km2. Nobody has problems with the neighbors there.

MORE POVOADO - SINGAPORE
Everyone knows that China is the most populous country in the world, with more than 1.2 billion people. But the most populated, with more people espremida the territory, it is Singapore, with 6,107 human beings per km2.

MORE OLD - CHINA
The country was already attached at 221 a.C. But before that, in 1500 BC, had political institutions there. Iraq and Egypt, despite the recent trajectory as independent nations, they also have histories that go back to 3000 BC

MORE RECENT - EAST TIMOR
In 1999, after a civil war cruenta, a plebiscite bancado the UN gave the East Timorese as dreamed independence, officially recognized in 2002. The country was annexed by Indonesia in 1975.

Aurora Polar

The Aurora Polar is a phenomenon in optical light that occurs near the polar areas through energizadas particles coming from Sol Such particles composed of protons and electrons exceed the magnetic lines of the planet and come into contact with atmospheric gases cause the light effects that can be in the shape of a stain, understory, archery, track or veil and even different colors like green, red, violet and blue. The gases that in contact with these particles promote such effects are the oxygen and nitrogen.

As mentioned earlier, the polar aurora occurs near the polar areas. Aurora Boreal is the name given to the phenomenon when this occurs in the northern hemisphere while Austral Aurora is the name given to the phenomenon when this occurs in the southern hemisphere. These phenomena may occur either in summer as in winter, but it is hardly seen during the summer because it is invisible in daylight in that period. They are best seen in periods September - October and in February-March.

The auroras are not features of the Earth, because as it is a phenomenon external could occur on other planets close to the Sun as Venus, Mars, Saturn and Jupiter.

THE 13 THINGS YOU COULD NOT DYING WITHOUT KNOW:

1. Mice not vomitam.
2. The polar bears are canhotos.
3. You will flash approximately 25 thousand times a day.
4. The Russians meet on the phone saying "I am listening."
5. Nobody can lick your own elbow.
6. The Atlantic Ocean is more salty the Pacific.
7. The elephant is the only animal with four knees.
8. Each year, 98% of the atoms in your body are replaced.
9. Rir during the day makes you sleep better at night.
10. 15% of American women send flowers to themselves on the day of lovers.
11. Your hair grows faster at night, and you lose on average 100 yarns per day.
12. The cockroach can survive for nine days without its head before dying of starvation.
13. 75% of people who read these 13 things, tried to lick your own elbow?