Visto en Spiked Math Comics
Aunque yo he visto el cómic gracias a Tito Eliatron, que todo hay que decirlo.
Categoría: Aprenda Inglés con…
Aprenda un poco de inglés con… el cubo de Rubik
Rubik’s Cube quest for speedy solution comes to an end
By Jonathan Fildes. Technology reporter, BBC News
A 30-year quest to find the fewest number of moves needed to solve any one of the billions of configurations for a Rubik’s Cube may have ended.
Any scrambled puzzle can be solved in 20 moves or fewer, researchers claim.
The international team used a bank of computers at Google to help crank through the solutions.
The figure is known as “God’s number” because an all-knowing entity would know the optimal number of steps needed to solve the puzzle.
“We now know for certain that the magic number is 20,” Professor Morley Davidson, a mathematician from Kent State University, told BBC News.
The results suggest that there are more than 100 million starting positions – of a possible 43 billion billion – that can be solved in exactly 20 moves.
However, the majority of solutions take between 15 and 19 moves to solve. Continuar leyendo “Aprenda un poco de inglés con… el cubo de Rubik”
¿Por qué hacer matemáticas?
SIAM (Society for Industrial and Applied Mathematics) ha creado una página web titulada Why do Math? que recomendamos fuertemente. Es muy interesante y puede ser muy útil para motivar a alumnos hacia el estudio de las matemáticas.
Como presentan en la propia web: “Los análisis matemáticos y computacionales han demostrado ser especialmente interesantes para resolver un sinfín de problemas en la ciencia, la sociedad y nuestra vida cotidiana. WhyDoMath destaca algunas soluciones a muchos de estos problemas en un atractivo sitio web multimedia (…)”
Rap y matemáticas
En Euronews cuentan estos días la historia de Johann Beurich, joven aleman que ha fusionado Rap y matemáticas para producir vídeos con canciones propias. Según él mismo cuenta “me gusta componer y he hecho mucha música en mi tiempo libre. Siempre quise escribir mis propias canciones, pero me quedaba sin ideas para los textos. Así que tomé las matemáticas”.
Pueden ver una muestra de su arte en este enlace a un rap sobre el problema de Monty Hall (el problema de las cabras, titulan en alemán). O bien visitar su canal en youtube.
Llevado por mi curiosidad, he buscado en la red acerca de rap y matemáticas, por si había más casos como el de Johann Beurich. Me he encontrado con la página Rhyme ‘n Learn, donde utilizan el rap y su rima para crear reglas mnemotécnicas que ayuden en el estudio de matemáticas y ciencia.
El siguiente vídeo, Pi Rap, es un buen ejemplo de ello
He optado por poner un vídeo de Rhyme ‘n Learn en lugar de uno de Johann Beurich porque, salvo alguna excepción, no creo que la crisis haya durado lo suficiente como para que en España entendamos mejor el alemán que el inglés.
Aprenda un poco de inglés con… the 10 skills that will get you hired in 2013
From Forbes website
Here, the 10 most critical job skills to parlay in your job search for 2013:
No. 1 Critical Thinking (found in 9 out of the 10 most in-demand jobs)
Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.
No. 2 Complex Problem Solving (found in 9 out of the 10 most in-demand jobs)
Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.
No. 3 Judgment and Decision-Making (found in 9 out of the 10 most in-demand jobs)
Considering the relative costs and benefits of potential actions to choose the most appropriate ones.
No. 4 Active Listening (found in 9 out of the 10 most in-demand jobs)
Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate and not interrupting.
No. 5 Computers and Electronics (found in 8 out of the 10 most in-demand jobs)
Knowledge of circuit boards, processors, electronic equipment and computer hardware including applications and programs.
No. 6 Mathematics (found in 6 out of the 10 most in-demand jobs)
Knowledge of arithmetic, algebra, geometry, calculus, statistics and their application.
No. 7 Operations and Systems Analysis (found in 5 out of the 10 most in-demand jobs)
Determining how a system or operation should work and how changes in conditions, operations and environments will affect outcomes. Understanding the needs and product requirements of a particular design.
No. 8 Monitoring (found in 5 out of the 10 most in-demand jobs)
Monitoring and assessing performance of yourself, other individuals or organizations to make improvement or take corrective action.
No. 9 Programming (found in 3 out of the 10 most in-demand jobs)
Writing computer programming for various purposes.
No. 10 Sales and Marketing (found in 2 out of the 10 most in-demand jobs)
Knowledge of principles and methods for showing, promoting and selling products or services. Includes marketing strategy and tactics, product demonstration, sales techniques and sales control systems.
Read more in Forbes