Chasing Comets

This is the first Inspiring Science Education Hangouts conducted by Dr. Pamela Gay:



This is part one of two. See the second part here: https://plus.google.com/events/coli5l...

"The solar system is littered with Ice. The bulk of this material orbits quietly in the outer Solar System, but sometimes, something disturbs the ice and the come plunging in toward the Sun. In this Hangout, we will discuss comets, how we explore them, and how they brought water to worlds like Earth."

The educational scenario can be found here: http://portal.opendiscoveryspace.eu/community/chasing-comets-774702?msg_id=23134

MIT courseware

MIT Open Courseware offers 1,800 courses for free online. The course websites include all lecture notes, exames, assignments, and any relevant lab manuals. In short, you get everything except the actual classtime and the textbook (which you could, of course, buy if you wished).

in http://physics.about.com

I created a playlist with some video lectures in YouTube, click here: http://www.youtube.com/user/eufisica#grid/user/2D00AA74067E5548

Solving Physics Problems

Check out this SlideShare Presentation:

Solving Physics Problems

View more presentations from wsautter.

Physics Front

An interesting site for physics teacher, provided by the American Association of Physics Teachers

Amplify’d from www.compadre.org

The Physics Front provides high quality resources for the teaching of physics and physical sciences courses.

The Physics Front is a free service provided by the American Association of Physics Teachers in partnership with the NSF/NSDL.

See bellow for topics

What's Left?

A graphical accounting of the limits to what one planet can provide

We have to worry with Global Warming, but also with another problem: We are running out on resources.

The info-graphics produced by Michael Moyer, shows us a world that's almost without resources and running for its extinction. 

Is the planet overpopulated?

Image: www.pixmac.com

The exponential growth of human population peaked in 1987. That year 87.01 million more people were added to the Earth. Since 1987, the population has declined on average by 2.1 million less people added per year. In this year of 2000 the population will increase by 60.1 million people. If we maintain this 13 year average of 2.1 million less people added per year, we will peak in population reaching zero population growth in 2029 with 6.90 billion people.

The decline of human population has been even more dramatic over the last 6 years. In 1994 we added 78.5 million more people, this year we will add 60.1 million. This is a decline of 3 million less people added per year. If we maintain this 6 year average of 3 million less people added per year, we will peak in population reaching zero population growth in 2020 with 6.64 billion people.

In http://www.overpopulation.net/

United Nations expects that we'll have ten billions of people in 2050 and we rich the limit of 11 billions in 2100.

In the following graph we denote that resources are falling and the population will stop growing in a near future.

Image from: http://www.oilempire.us/oil-jpg/Yourhere.jpg

Are we lost or have a salvation?