Human Brain Facts and Answers By Disabled World - 2008-10-19 Questions answers and facts relating to the human brain and the study of the brain organ including the spinal cord. What is the Brain? The brain is the center of the nervous system in animals. All vertebrates, and the majority of invertebrates, have a brain. In vertebrates, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell. The human brain controls the central nervous system by way of the cranial nerves and spinal cord, the peripheral nervous system and regulates virtually all human activity. The brain controls both involuntary, or "lower," actions, such as heart rate, respiration, and digestion. Brain Facts and Figures: How long is the spinal cord and how much does it weigh? The average spinal cord is 45 cm long in men and 43 cm long in women. How much does the brain weigh? The human brain weighs on average three pounds, or 1.5 kg. What size is an adult humans brain?
- ARKive - Extensive Animal Encyclopedia Wildscreen's Arkive project was launched in 2003 and grew to become the world's biggest encyclopaedia of life on Earth. With the help of over 7,000 of the world’s best wildlife filmmakers and photographers, conservationists and scientists, Arkive.org featured multi-media fact-files for more than 16,000 endangered species. Freely accessible to everyone, over half a million people every month, from over 200 countries, used Arkive to learn and discover the wonders of the natural world. Since 2013 Wildscreen was unable to raise sufficient funds from trusts, foundations, corporates and individual donors to support the year-round costs of keeping Arkive online. As a small conservation charity, Wildscreen eventually reached the point where it could no longer financially sustain the ongoing costs of keeping Arkive free and online or invest in its much needed development. Therefore, a very hard decision was made to take the www.arkive.org website offline in February 2019.
Female baboons with male companions live longer -- ScienceDaily Numerous studies have linked social interaction to improved health and survival in humans, and new research confirms that the same is true for baboons. A long-term study of more than 200 wild female baboons from the plains of southern Kenya finds that the most sociable females -- measured by how often they engaged in social grooming relative to their peers -- live two to three years longer than their socially isolated counterparts. Socializing with males gave females an even bigger longevity boost than socializing with other females, the researchers found. A handful of previous studies in baboons, rats and dolphins suggested that same-sex friendships can improve animal health and survival, but this is one of the first studies to show that opposite-sex friendships in animals can have similar effects, said co-author Elizabeth Archie of the University of Notre Dame. "Grooming is the baboon equivalent of gossip, or having a good conversation over a cup of coffee," Alberts said.
Interactive 3D model of Solar System Planets and Night Sky Science, ICT, and the Global Classroom (Crowd-Sourced Notes) Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes MadSciNet: The 24-hour exploding laboratory. Prehistory Prehistory (meaning "before history", or "before knowledge acquired by investigation", from the Latin word for "before," præ, and historia) is the span of time before recorded history or the invention of writing systems. Prehistory refers to the period of human existence before the availability of those written records with which recorded history begins. More broadly, it can refer to all the time preceding human existence and the invention of writing. The notion of "prehistory" began to surface during the Enlightenment in the work of antiquarians who used the word 'primitive' to describe societies that existed before written records. The first use of the word prehistory in English, however, occurred in the Foreign Quarterly Review in 1836. The occurrence of written materials (and so the beginning of local "historic times") varies generally to cultures classified within either the late Bronze Age or within the Iron Age. Definition Stone Age Paleolithic uninhabited
25 TED Talks Perfect For Classrooms The 50 Best Sources of Free STEM Education Online 12.05K Views 0 Likes Colleges, universities, and other educational forums in your community can be excellent places to learn more about a variety of STEM topics, but there is also a wealth of educational material available on the web for those who prefer to learn at their own pace or take a more individual approach. Norse mythology An undead völva, a Scandinavian seeress, tells the spear-wielding god Odin of what has been and what will be in Odin and the Völva by Lorenz Frølich (1895) For the practices and social institutions of the Norse pagans, see Norse paganism Norse mythology, or Scandinavian mythology, is the body of mythology of the North Germanic people stemming from Norse paganism and continuing after the Christianization of Scandinavia and into the Scandinavian folklore of the modern period. The northernmost extension of Germanic mythology, Norse mythology consists of tales of various deities, beings, and heroes derived from numerous sources from both before and after the pagan period, including medieval manuscripts, archaeological representations, and folk tradition. Most of the surviving mythology centers on the plights of the gods and their interaction with various other beings, such as humanity and the jötnar, beings who may be friends, lovers, foes and/or family members of the gods. Sources
Spindeln - söktjänst för skolan Spindeln är en söktjänst som är speciellt framtagen för att pedagoger och elever lätt ska kunna söka efter digitalt material för skolarbete. Du kan infoga Spindeln på din webbplats. Infoga Spindeln på din webbplats Den som vill kan infoga Spindeln på sin webbplats. Här finns intruktioner för hur du infogar Spinden Har du frågor om hur man infogar Spindeln kan du kontakta Fredrik Pausson på Umeå universitet. Material från flera arkiv Spindeln söker i flera arkiv men är begränsad till de arkiv som innehåller material för skolarbete. Samarbete med flera aktörer Tekniken bakom Spindeln har utvecklats av Umeå universitet i samarbete med Skolverket.
The Ten Most Disturbing Scientific Discoveries Science can be glorious; it can bring clarity to a chaotic world. But big scientific discoveries are by nature counterintuitive and sometimes shocking. Here are ten of the biggest threats to our peace of mind. 1. The Earth is not the center of the universe. We’ve had more than 400 years to get used to the idea, but it’s still a little unsettling. … his contemporaries found his massive logical leap “patently absurd,” says Owen Gingerich of the Harvard-Smithsonian Center for Astrophysics. Galileo got more grief for the idea than Copernicus did. 2. Antibiotics and vaccines have saved millions of lives; without these wonders of modern medicine, many of us would have died in childhood of polio, mumps or smallpox. The influenza virus mutates so quickly that last year’s vaccination is usually ineffective against this year’s bug. 3. The concept of extinction took a while to sink in. Today, according to many biologists, we’re in the midst of a sixth great extinction.
50 Really Cool Online Tools for Science Teachers A 21st-century education revolves around the Internet for everything from collaboration, tools, lessons, and even earning degrees online. If you are looking for ways to integrate online learning into your science class or science degree programs, then take a look at these cool online tools that are just perfect for both teachers and students. Science Tools to Use with Students These tools offer opportunities for learning about climate, cells, the human body, nature, and more. ChemiCool. AP Tools Whether you are setting up a new AP curriculum or are just looking for additional material to use with your AP science students, these tools will help. Advanced Placement Biology. Websites and Resources for Science Teachers These websites are chock full of amazing resources and tools for science teachers. Discovery Education. Calculators Use these informative environmental calculators with your students. Ecological Footprint Quiz. Online Games Online Science Games. Google Earth Google Earth Ocean.