Explore Zombie Cat

Look around, watch a video, read a story... who knows, you might learn something. If there's something missing, please click on the Share link to tell us about it.

Latest Entries

National Science Digital Library

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Thursday, 07 April 2011
in Online Resources

NSDL LogoThe National Science Digital Library (NSDL) is a national network of digital envirionments dedicated to advancing science, technology, engineering, and mathematics (STEM) teaching and learning for all learners, in both formal and informal settings. NSDL is the locus of activity for the National STEM Distributed Learning program.

NSDL receives the majority of its funding through the generous support of NSF's Division of Undergraduate Education (DUE), Directorate for Education and Human Resources (EHR).

NSDL advances teaching and learning by providing:

Hits: 14910

Visual Proof of the Pythagorean Theorem

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Monday, 04 April 2011
in Videos worth watching

Simple one minute video provides a visual elegant proof of the Pythagorean theorem.

 

 

Tags: Math

The Physics of Angry Birds

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Great Explanations

Teachable Moment: It is important to realize that making science "relevant" doesn't always mean solving real world problems... it can be as simple as showing how proper use of science makes games better.

The article asks the question: 

"But what about the physics? Do the birds have a constant vertical acceleration? Do they have constant horizontal velocity? Let’s find out, shall we? Oh, why would I do this? Why can’t I just play the dumb game and move on. That is not how I roll. I will analyze this, and you can’t stop me."

Follow the reference to find out.

 

References: http://www.wired.com/wiredscience/2010/10/physics-of-angry-birds/

Tags: Physics
Hits: 76270

How hard can it be? Real life UP balloon launch.

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Videos worth watching

How much helium does it take to lift a house with balloons?Teachable Moment: Well... it's a cool video.  Beyond that, it might be fun to try to figure out how big those balloons are and calculate how much helium would have to be used to lift a house!

The National Geographic Channel will be premiering a new series in the Fall of 2011 called "How hard can it be?"

So of course, they decided to see how hard it would be to make a house float as in UP.

Tags: Random
Hits: 22842

GeoGebra

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Online Resources

GeoGebra LogoWhat is GeoGebra?

GeoGebra is free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, tables, graphing, statistics and calculus in one easy-to-use package. It has received several educational software awards in Europe and the USA.

Tags: Math
Hits: 18959

Inner Life of a Cell - Biovisions Harvard University

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Videos worth watching

biovisions logoTeachable Moment: Beautiful visualization of the inner workings of a cell.

Research in the biological sciences often depends on the development of new ways of visualizing important processes and molecules. Indeed, the very act of observing and recording data lies at the foundation of all the natural sciences. The same holds true for the teaching and communication of scientific ideas; to see is to begin to understand. The continuing quest for new and more powerful ways to communicate ideas in biology is the focus of BioVisions at Harvard University.

Tags: Biology
Hits: 46778

The Number Devil: A Mathematical Adventure

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Favorite Books

Teachable Moment: This little book cleverly crams complex mathematical concepts into a story of a bad dream.... what more can you say?  If you find numbers interesting, explore them in a whole new way with the help of this little devil.

Twelve year old Robert fears numbers and hates maths. Then, in his dreams, he meets the Number Devil who introduces him to the amazing and magical world of numbers. This international bestseller is an exciting adventure in learning for both adults and children which will do for mathematics what "Sophie's World" did for philosophy.

To Purchase: The Number Devil: A Mathematical Adventure

Authors: Hans Magnus Enzensberger, Rotraut Susanne Berner, Michael Henry Heim

Tags: Math
Hits: 79006

Why don't planets twinkle as stars do?

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Friday, 01 April 2011
in Great Explanations

Teachable Moment: This thought experiment can be used at so many levels.  At its core, it teaches basic concepts of astronomy but it also can be used to explore the properties of light and even of the concept of infinity. As the distance of the object approaches infinity, the impact of the atmosphere is stronger and stronger.

Stars twinkle. Planets shine steadily. Why?

Stars always twinkle because they’re so far away from Earth that, even through large telescopes, they appear only as pinpoints. And it’s easy for Earth’s atmosphere to disturb the pinpoint light of a star.

Hits: 132041

Turtles all the way down

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Thursday, 31 March 2011
in Great Explanations

Teachable Moment: What do we really know and how solid is the foundation of that knowledge?  That's the fundamental question of all science and, as Hawking so brilliantly realized, the turtle story makes this question tangible and fun to think about.

In Stephen Hawking's 1988 book A Brief History of Time, he starts with the following story:

A well-known scientist (some say it was Bertrand Russell) once gave a public lecture on astronomy. He described how the earth orbits around the sun and how the sun, in turn, orbits around the center of a vast collection of stars called our galaxy. At the end of the lecture, a little old lady at the back of the room got up and said: "What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise." The scientist gave a superior smile before replying, "What is the tortoise standing on?" "You're very clever, young man, very clever", said the old lady. "But it's turtles all the way down!"

References: Hawking, Stephen (1988). A Brief History of Time. Bantam Books. ISBN 978-0553053401.
http://en.wikipedia.org/wiki/Turtles_all_the_way_down#cite_note-0

Hits: 30003

www.terravert.org

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Wednesday, 30 March 2011
in Online Resources

TerraVert LogoTerraVert is a non-profit online service designed for K-5 teachers and children to enhance their learning experience in energy renewal concepts.

References: http://www.terravert.org

Hits: 14274