Archive for August 30th, 2006

Tackling Evolution Challenges at Museums and Parks

Wednesday, August 30th, 2006

Here’s a good story that shows the fight to defend science happens in places beside the classroom and politics.

The vast majority of scientists agree that intelligent design (ID) — the belief that the complexity of life is evidence that something intelligent must have designed it — is not a scientific theory. But the rising popularity of the belief has led museums and national parks to rethink how they present information to visitors. Both groups are working to further educate staff and volunteers, and also to present clear information about why evolution is accepted among most scientists.
“The bottom line is that intelligent design is a threat to the credibility of science in our culture,” says Kirk Johnson, chief curator at the Denver Museum of Nature & Science. “Since science ought to be in a museum, we realized that as a museum, we could do a better job of educating people about what science is, and how we know what we know.”

The mission of natural history museums is always to explain how science works so that people can understand it, “but clearly there are individuals who are tempted to conflate what science is and make it confusing,” he says. “It makes us more inspired to make it understandable.”

… the new Thomas Condon Paleontology Center is much larger, dedicated to paleontology, and filled with text and graphic displays about the fossil record. At first, Fremd says, he worried that the new displays would be too complex, but he is now pleased by how many people spend hours reading the fine print. Prior to visiting the park’s center, Fremd says that it is easy for people to think that bones in one layer of a fossil bed could have been the result of Noah’s biblical flood. But with the rigorous explanations in the museum, visitors can begin to put the data together and understand the complexity of evolution.
Part of the problem, which can lead to nonscientific ideas such as ID, is that some museums, rangers and docents are apologizing for how complex the story is, Fremd says. “But it is the very complexity that makes it interesting. Don’t apologize for making it complex.”

Interesting opinion column

Wednesday, August 30th, 2006

Here’s an interesting opinion piece that ran in a Naples paper. It mentions some other article supposedly published in the same paper about an opposing view, but I couldn’t find that other piece.

Stay safe out there, folks!

Wednesday, August 30th, 2006

It turns out that even the simplest of experiments and science classroom projects can be dangerous in some way.

A few months back, the fifth-graders at Franklin’s Jefferson Elementary contracted salmonella, a nasty bacterial infection, from owl pellets, grayish, hardened clumps of regurgitated material that students dissect to figure out what the bird ate.

The packages they arrived in indicated they were sterile.

“People sincerely thought these were risk-free,” said Dr. Bela Matyas, a state disease sleuth who tracked the outbreak, which caused illness but no permanent health problems. “They thought this was no different than making a Mother’s Day present.”

But it was different. The pellets, it turned out, harbored salmonella. It was easy enough for the germs to make the leap from pellet to student, especially because the project extended over several days.

“There could easily have been a situation where a child would prod the pellet with their pencil and then put the pencil in their mouth,” Matyas said.

At an Illinois school nearly five years ago, a chemistry teacher was demonstrating how the color of a flame can indicate the presence of sodium chloride, potassium chloride, or some other salt. It is a staple of high school chemistry.

Suddenly, a fireball erupted, lunging at three students and burning them severely. It wasn’t the first time such an accident had happened.

Even material used in basic experiments has changed. In the past, when teachers wanted to demonstrate how food contains energy, they used nuts.

“But we don’t want to do that now because we have so many students who may have peanut allergies,” Decker said.

Instead, they substitute cheese puffs in the calorie-burning experiment.

“If you do that experiment, though, you’ll never want to eat a cheese puff again,” Decker said. “Because the stuff that comes out – oh my God, the grease, everything.

“But that’s science.”