jwjr - Slashdot User

Chemistry Tasks For the Computer Lab? 154

Posted by timothy on Sunday January 31 2010, @08:38AM
from the just-the-basics dept.

soupman55 writes "I teach Chemistry to students completing their last two years of high school. Basically it's a 'teach and test' course with a few experiments thrown in. I want to jazz up the course using computer and internet resources. For instance, I could set some tasks that require Excel spreadsheet calculations. Or I could set some web quests where students search for information online. One of the decisions to be made is: Do I use computer/internet tasks to help the students grasp the material that is already in the course, or do I help them become aware of ideas that are extensions to their course? Also, when I compare Chemistry classes with Accounting classes, it strikes me that unlike Accounting where learning to use software like Quick Books is an integral part of the course, that there is no particular software that a chemistry student must learn to use. Or is there? What in terms of chemistry and computers worked for you? Or what is there computer-wise that wasn't in your high school chemistry course but should have been?"

Dinosaur Feather Color Discovered 219

Posted by timothy on Wednesday January 27 2010, @04:28PM
from the horsefeathers-still-a-mystery dept.

anzha writes "Do you remember being a kid and told we'd never know what colors the dinosaurs were? For at least some, that's no longer true. Scientists working in the UK and China have closely examined the fossils of multiple theropods and actually found the colors and patterns that were present in the fossilized proto-feathers. So far, the answer is orange, black and white in banded and other patterns. The work also thoroughly thrashes the idea that fossils might not be feathers, but collagen fibers instead. If this holds up, Birds Are Dinosaurs. Period. And colorful!"

Political Affiliation Can Be Differentiated By Appearance 262

Posted by samzenpus on Wednesday January 27 2010, @01:06PM
from the if-it-looks-like-a-liberal-and-quacks-like-a-liberal dept.

quaith writes "It's not the way they dress, but the appearance of their face. A study published in PLoS One by Nicholas O. Rule and Nalini Ambady of Tufts University used closely cropped greyscale photos of people's faces, standardized for size. Undergrads were asked to categorize each person as either a Democrat or Republican. In the first study, students were able to differentiate Republican from Democrat senate candidates. In the second, students were able to differentiate the political affiliation of other college students. Accuracy in both studies was about 60% — not perfect, but way better than chance."

Microsoft Patches "Google Hack" Flaw In IE 142

Posted by timothy on Thursday January 21 2010, @04:40PM
from the you-saw-this-coming dept.

An anonymous reader writes "As expected, Microsoft has issued an out-of-band security patch to address a remote code execution hole in Internet Explorer that was used in the recent Chinese attacks disclosed by Google. Ars Technica has all the download links you need."

Police Called Over 11-Year-Old's Science Project 687

Posted by samzenpus on Saturday January 16 2010, @04:37PM
from the duck-and-cover dept.

garg0yle writes "Police in San Diego were called to investigate an 11-year-old's science project, consisting of 'a motion detector made out of an empty Gatorade bottle and some electronics,' after the vice-principal came to the conclusion that it was a bomb. Charges aren't being laid against the youth, but it's being recommended that he and his family 'get counseling.' Apparently, the student violated school policies — I'm assuming these are policies against having any kind of independent thought?"

Own Your Own Fighter Jet 222

Posted by samzenpus on Saturday January 16 2010, @02:02PM
from the only-one-on-the-block dept.

gimmebeer writes "The Russian Sukhoi SU-27 has a top speed of Mach 1.8 (more than 1,300 mph) and has a thrust to weight ratio greater than 1 to 1. That means it can accelerate while climbing straight up. It was designed to fight against the best the US had to offer, and now it can be yours for the price of a mediocre used business jet."