Audio/Video Lectures Explore, Play, Discover: Websites & Activities Search form Search Low-cost, teacher-tested activities for the classroom and the curious. Science of Cooking • Explore the science behind food and cooking with recipes, activities, and Webcasts.PreviousNext Explore, Play, Discover: Websites, Activities, and More Auroras: Paintings in the Sky Far north in the night sky, a faint glow appears on the horizon. Feeling Pressured Feel atmospheric pressure changes by stepping into a garbage bag. Camera Obscura Take the Beat Back Uncover the everyday origins of some extraordinary instruments. The Cold Water Candy Test Science of Baseball What's the science behind a home run? Arctic Seals These unique – and uniquely beautiful – seal species spend their lives amid the sea ice Plant Hybrids If you're a patient gardener, you can grow your own hybrid flowers. 2016 Total Solar Eclipse Telescope View Watch the telescope view of the entire 2016 total solar eclipse in Micronesia. Energy from Death Slinky in Hand Make waves without getting wet. Cheshire Cat Pages explore Connect
The mathematics of being nice - life - 21 March 2011 - New Scientist Using mathematics to tackle some of biology's biggest questions, Martin Nowak has concluded that an ability to cooperate is the secret of humanity's success. He talks to Michael Marshall about drawing fire from Richard Dawkins, the perils of punishment, and devising the mathematical equivalent of the rules of religion Why are you so fascinated by our ability to help each other out? Cooperation is interesting because it essentially means that you help someone else, someone who is a potential competitor. You reduce your own success in order to increase the success of somebody else . You say there are five different ways in which we cooperate that give us an edge, in terms of natural selection. The third mechanism is when neighbours help each other - cooperators survive in clusters. Group selection has had a tricky reputation, and has been attacked by evolutionary biologists. Unless I've lost count, there should be one mechanism left. Can you explain? So how do you see religion?
Interactive 3D model of Solar System Planets and Night Sky Inicio Biblioteca Digital Mundial Science News Powerball Odds Powerball odds and probabilities for the Powerball Jackpot – and how to calculate these Powerball odds. Additional calculations show tie probabilities and expected return on your “investment”.Ticket Matches Payout Odds Probability--------------------------------------------------------------------5 White + PB Jackpot 1 in 175,223,510 0.0000000057075 White No PB 1,000,000 1 in 5,153,632.65 0.00000019404 White + PB 10,000 1 in 648,975.96 0.0000015414 White No PB 100 1 in 19,087.53 0.000052393 White + PB 100 1 in 12,244.83 0.000081673 White No PB 7 1 in 360.14 0.0027772 White + PB 7 1 in 706.43 0.0014161 White + PB 4 1 in 110.81 0.0090240 White + PB 4 1 in 55.41 0.01805 Win something Variable 1 in 31.85 0.03140 Game Rules The numbers picked for the prizes consist of 5 white balls picked at random from a drum that holds 59 balls numbered from 1 to 59. You can also buy a “Power Play” option. Probability of multiple winning tickets (multiple winners) given “N” tickets in play Number of Mult.
These Cars Built By High School And College Students Get Up To 3,587 MPG Every year, the Shell Eco-Marathon Americas challenges over 100 teams of high school and university students to build and race incredibly energy-efficient vehicles powered by all types of sources--solar, electric, fuel cell, gasoline, and more. This year’s race was especially impressive: The prototype gasoline vehicle of Quebec City-based Laval University achieved a staggering 3,587 miles per gallon on the Houston racetrack. That’s the most mileage per gallon ever seen at a Shell Eco-Marathon Americas competition. In the UrbanConcept Diesel category, which focuses on practical vehicle designs (Laval’s prototype vehicle was focused on efficiency more than practicality), Louisiana Tech took first place for its HotRod diesel car. The vehicle traveled around the track at 315.9 mpg. The team is already working on next year’s design, which will have a completely new drive train. Check out all the winners in the slide show above.
Herramientas: Mapas Conceptuales > Uso de Mapas Conceptuales en procesos educativos Los mapas conceptuales son redes semánticas que posibilitan representar gráficamente conceptos y sus interrelaciones para poner en evidencia las estructuras de conocimiento que las personas tienen en sus mentes [1]. Fueron desarrollados por Joseph D. Novak, profesor emérito en la Universidad de Cornell, quien a su vez se basó en la teoría del aprendizaje significativo de David Ausubel. Visualmente, tienen formas sencillas pero poderosas, compuestas por nodos que representan conceptos, unidos por medio de líneas con etiquetas, que simbolizan las relaciones existentes entre estos. Al construirlos, pueden tomar una de las siguientes formas: Lineales tipo Diagrama de Flujo; Sistémicos con información ordenada en forma lineal con ingreso y salida de información; o Jerárquicos, cuando la información se organiza de la más a la menos importante o de la más incluyente y general a la menos incluyente y específica. Autor: Juan Carlos López García