blacksundae

We often think of scientific ideas, such as Darwin’s theory of evolution, as fixed notions that are accepted as finished. In fact, Darwin’s On the Origin of Species evolved over the course of several editions he wrote, edited, and updated during his lifetime. The first English edition was approximately 150,000 words and the sixth is a much larger 190,000 words. In the changes are refinements and shifts in ideas — whether increasing the weight of a statement, adding details, or even a change in the idea itself.

On the Origin of Species: The Preservation of Favoured Traces is a visualization of the edits Darwin made to the book over the course of six editions. This was created with Processing, something I’ve been meaning to try out. via Pharyngula

By way of explanation. Via the always fascinating VRTPALEO mailing list.

As if Louisiana didn’t have enough to worry about.

As we noted last month, a number of states have been considering laws that, under the guise of “academic freedom,” single out evolution for special criticism. Most of them haven’t made it out of the state legislatures, and one that did was promptly vetoed. But the last of these bills under consideration, the Louisiana Science Education Act (LSEA), was enacted by the signature of Governor Bobby Jindal yesterday. The bill would allow local school boards to approve supplemental classroom materials specifically for the critique of scientific theories, allowing poorly-informed board members to stick their communities with Dover-sized legal fees.

Read on.

Well-known pro-science blogger PZ Myers of Pharyngula tried to attend a screening of Intelligent Design Creationist documentary, Expelled. He didn’t make it in. His buddy did, though:

They singled me out and evicted me, but they didn’t notice my guest. They let him go in escorted by my wife and daughter. I guess they didn’t recognize him. My guest was …

Richard Dawkins.

He’s in the theater right now, watching their movie.

Tell me, are you laughing as hard as I am?

Read on.

7. Evolutionary Theory is Incomplete
Evolutionary science is a work in progress. Science is constantly making new discoveries with regard to it and explanations are always adjusted if necessary. Evolutionary theory is like all of the other sciences in this respect. Science is always trying to improve our knowledge. At present, evolution is the only well-supported explanation for all of life’s diversity.

Read the whole list. [via Reddit]