Paginas web

                                                                PAGINAS WEB
www.brainmuseum.org This web site provides browsers with images and information from one of the world's largest collection of well-preserved, sectioned and stained brains of mammals. Viewers can see and download photographs of brains of over 100 different species of mammals (including humans) representing over 20 Mammalian Orders.


WWW.accessexcellence.org/RC/VL/GG/
Graphics Gallery is a series of labeled diagrams with explanations representing the important processes of biotechnology. Each diagram is followed by a summary of information, providing a context for the process illustrated.

www.wwf.org



www.greenpeace.org/international

Greenpeace exists because this fragile earth deserves a voice. It needs solutions. It needs change. It needs action.

Greenpeace is an independent global campaigning organisation that acts to change attitudes and behaviour, to protect and conserve the environment and to promote peace by:

• Catalysing an energy revolution to address the number one threat facing our planet: climate change.
• Defending our oceans by challenging wasteful and destructive fishing, and creating a global network of marine reserves.
• Protecting the world's ancient forests and the animals, plants and people that depend on them.
• Working for disarmament and peace by tackling the causes of conflict and calling for the elimination of all nuclear weapons.
• Creating a toxic free future with safer alternatives to hazardous chemicals in today's products and manufacturing.
• Campaigning for sustainable agriculture by rejecting genetically engineered organisms, protecting biodiversity and encouraging socially responsible  

http://solarsystem.nasa.gov/planets/index.cfm

A solar system refers to a star and all the objects that travel in orbit around it. Our solar system consists of the sun - our star - eight planets and their natural satellites (such as our moon); dwarf planets; asteroids and comets. Our solar system is located in an outward spiral of the Milky Way galaxy.

http://www.nasa.gov

The sun emitted a mid-level solar flare that peaked at 8:30 p.m. EDT on Oct. 23, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel.

http://www.jpl.nasa.gov

With the sun now shining down over the north pole of Saturn's moon Titan, a little luck with the weather, and trajectories that put the spacecraft into optimal viewing positions, NASA's Cassini spacecraft has obtained new pictures of the liquid methane and ethane seas and lakes that reside near Titan's north pole. The images reveal new clues about how the lakes formed and about Titan's Earth-like "hydrologic" cycle, which involves hydrocarbons rather than water.
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http://www.iucnredlist.org/

The IUCN Species Programme working with the IUCN Species Survival Commission (SSC) has for more than four decades been assessing the conservation status of species, subspecies, varieties, and even selected subpopulations on a global scale in order to highlight taxa threatened with extinction, and therefore promote their conservation. Although today we are operating in a very different political, economic, social and ecological world from that when the first IUCN Red Data Book was produced, the IUCN Species Programme, working with the Species Survival Commission and many partners, remains firmly committed to providing the world with the most objective, scientifically-based information on the current status of globally threatened biodiversity. The plants and animals assessed for the IUCN Red List are the bearers of genetic diversity and the building blocks of ecosystems, and information on their conservation status and distribution provides the foundation for making informed decisions about conserving biodiversity from local to global levels.


http://www.ciencia.nasa.gov/









An M5 flare (medium-size) associated with a coronal mass ejection generated a fairly robust radiation storm (May 22-23, 2013). The outburst originated from active region right near the right edge of the Sun. After the eruption, cascades of magnetic loops spun up above the area as the magnetic fields tried to reorganize themselves. When viewed in profile, they put on a marvelous display of solar activity. The images are a combination of two wavelengths of extreme ultraviolet light (at 171 and 304 Angstroms). Credit: NASA's Solar Dynamics Observatory.

http://www.usgs.gov/water/

Water Resources of the United States

Water is one of six science mission areas of the U.S. Geological Survey (USGS). Water's mission is to collect and disseminate reliable, impartial, and timely information that is needed to understand the Nation's water resources.

http://www.sky-map.org/

+6Today is the 50th anniversary of one of the most important events in human history: the day when a human being left the confines of Earth and entered space.

On this date, April 12, 1961, Yuri Gagarin was the first such person. It took him just 108 minutes to orbit Earth and he returned as the World’s very first space man.

First Orbit – the movie is a feature-length, experimental documentary film about Vostok 1, the first manned space flight around the Earth.
A real time recreation of Yuri Gagarin’s pioneering first orbit, shot entirely in space from on board the International Space Station. The film combines this new footage with Gagarin’s original mission audio and a new musical score by composer Philip Sheppard.