Middle and High School … from a Montessori Point of View
Gravity, as we know, is proportional to the mass of an object. The above graph shows the amount of space affected by the major bodies (planets and moons) in the solar system. The gravity well is a measure of how far you would have to go to be able to escape the gravity of a planet.
A nice graphic published by the New York Times showing change over the last 10 years.
Good blogging style, like good presentations, should be multi-modal. On the internet we’re limited to text, images and sound/video so we do the best we can. I tend to be text oriented so I try to add an image to each post. In an earlier post on how science works I snagged an image by cédric sorel that he contributed to Wikipedia.
Each time I see this interpretation of the Big Bang I am astonished once again. The textures give the impression of a three-dimensional cut-away, and the detail in the spiral galaxies swirling away from the center just pulls my attention like a strong magnet lines up iron filings.
The image is in the public domain and a high resolution version can be found on the Wikimedia Commons page (http://commons.wikimedia.org/wiki/File:Big_bang.jpg).
