Comment Re:Volume of universe? (Score 1) 102
What are you talking about? The Milky Way alone has a diameter of around 100,000 light years.
Comment Galileo (Score 1) 249
I think you should try as hard as possible to replicate the process of discovery that the great scientists of the past have undergone, especially in a first exposure to college physics. There is no better way to understand how the concepts (quantities, really) of position, velocity, and acceleration interact than by rolling a metal ball down a ramp and taking measurements with the goal of establishing predictive results. I had to replicate this famous experiment of Galileo's with extremely primitive instruments (i.e. my pulse and pseudo-reliable internal metronome). Of course, you don't want to make it so difficult that it becomes frustrating to your students, but making them digest data and create original (or for those who've been exposed to physics in high school, imitative) models should be the goal.
Bats Inspiring Future Micro Unmanned Aircraft 76
coondoggie writes "It's not the first time researchers have tried to emulate flapping as a way to fly aircraft, but US Air Force-funded researchers are now looking at how bats move to help them develop future micro-aircraft. According to these researchers, birds, bats, and insects have some highly varied mechanical properties that researchers have so far not utilized in engineering flight vehicles. The idea is to reproduce bat mechanics and develop technology could lead to small, remote controlled aircraft able to move in places where fixed-wing aircraft have a hard time — like the interiors of buildings, caves, or tunnels."
On the Economics of the Kindle 398
perlow writes "Just how many books a year would you need to read before the cost of Amazon's Kindle is justified? The answer is not so cut-and-dried. If you're a college student and all of your texts were available on Kindle (possible but unlikely), you could recover the cost of the reader in a semester and a half. For consumers to break even with Kindle's cost in that time, they would have to be in the habit of buying and reading four new hardback books per month — if the convenience factor wasn't part of the equation. At two books per month, breakeven would be in three years." Here is the spreadsheet if you want to play with the numbers.
Non-Profit Org Claims Rights In Library Catalog Data 152
lamona writes "The main source of the bibliographic records that are carried in library databases is a non-profit organization called OCLC. Over the weekend OCLC 'leaked' its new policy that claims contractual rights in the subsequent uses of the data, uses such as downloading book information into Zotero or other bibliographic software. The policy explicitly forbids any use that would compete with OCLC. This would essentially rule out the creation of free and open databases of library content, such as the Open Library and LibraryThing. The library blogosphere is up in arms . But can our right to say: "Twain, Mark. The adventures of Tom Sawyer" be saved?"
The Gene Is Having an Identity Crisis 257
gollum123 writes "New large-scale studies of DNA are causing a rethinking of the very nature of genes. A typical gene is no longer conceived of as a single chunk of DNA encoding a single protein. It turns out, for example, that several different proteins may be produced from a single stretch of DNA. Most of the molecules produced from DNA may not even be proteins, but rather RNA. The familiar double helix of DNA no longer has a monopoly on heredity: other molecules clinging to DNA can produce striking differences between two organisms with the same genes — and those molecules can be inherited along with DNA. Scientists have been working on exploring the 98% of the genome not identified as the protein-coding region. One of the biggest of these projects is an effort called the Encyclopedia of DNA Elements, or 'Encode.' And its analysis of only 1% of the genome reveals the genome to be full of genes that are deeply weird, at least by the traditional standard of what a gene is supposed to be and do. The Encode team estimates that the average protein-coding region produces 5.7 different transcripts. Different kinds of cells appear to produce different transcripts from the same gene. And it gets even weirder. Our DNA is studded with millions of proteins and other molecules, which determine which genes can produce transcripts and which cannot. New cells inherit those molecules along with DNA. In other words, heredity can flow through a second channel."
iTunes On OS X Finally Has Competition 668
mallumax writes "The truth is, iTunes is an average music player. Though the UI is simple and good like most Apple products, it has lagged in features compared to music players available on Linux and Windows. A feature as basic as monitoring a folder and adding the latest music files to the library is unavailable in iTunes. There are no plugins or themes. Despite the many faults, many of us continued to use iTunes because of the lack of options available. But today the wait is finally over. Not one, but two music players have become credible contenders.
Songbird: An open source music player which has been in the works for more than 2 years has finally released its 1.0 Release Candidate builds. The team behind Songbird has members who previously developed for both Winamp and the Yahoo Music Engine. It has support for extensions and themes ('feathers' in Songbird parlance).
Amarok: The undisputed champion among Linux music players is finally coming to OS X, thanks to KDE 4 being ported there. Amarok developer Leo Franchi has been able to run a Amarok on OS X natively. So we can expect a reasonably stable Amarok to hit OS X in a few months' time.
Hopefully these players will gain traction among OS X users, which will finally force Apple to either step up in terms of features or open up iTunes for extensions."
Comment unnecessary (Score 5, Funny) 97
Or perhaps you're making a new TV commercial, and you need a snippet of music that sounds something like Radiohead, but a bit more mellow.
You don't need software algorithms for that, just go download a Coldplay album. Except maybe replace "mellow" with "soulless."
You don't need software algorithms for that, just go download a Coldplay album. Except maybe replace "mellow" with "soulless."
