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15 February 2006

Dogs die by the numbers

A dog treat designed to help clean the dog's teeth has caused a number of them to choke or has gotten caught in their intestines and ended up killing at least 13 dogs. The part that caught my eye though was the poor grasp of numbers in the article.


"Our product is safe. It is used every day by thousands of dogs, millions a week and it is basically a very safe product," (said Greenies developer Joe Roetheli).

"At the end of the day ... literally millions of Greenies are enjoyed by dogs on a weekly basis with absolutely no incidents," company vet Brad Quest told CNN.

(CNN)


Which is it, thousands a day or millions a week? If we had thousands, say 9 thousand a day, times 7 days a week that makes 63,000 dogs a week, not millions. If it were 1 million a week, that'd be 142,000 a day, which is hundreds of thousands, not mere thousands. I don't think I'm nitpicking the English here, but the numbers.

14 February 2006

Global Energy Quiz

How much do you know about the world's energy (both sources and usage)? I got only 4 of 9. :(

11 February 2006

Higher Ed

Somebody explain to me why the HELL they think this is a good idea?! The United States has higher education that is the ENVY of the entire world. The best students in foreign countries come to the US for their college education. The best of the best go on to our graduate schools, so that international students make up the majority of many departments in the US. On the other hand, our lower (K-12) education trails behind that of most first world nations. Our students struggle to go to college, are poorly prepared when they do, and area easily outpaced by their international peers.

So Congress decides the best thing to do is to institute standardized testing at the college level.


A higher education commission named by the Bush administration is examining whether standardized testing should be expanded into universities and colleges to prove that students are learning and to allow easier comparisons on quality.

Charles Miller, a business executive who is the commission's chairman, wrote in a memorandum recently to the 18 other members that he saw a developing consensus over the need for more accountability in higher education.

"What is clearly lacking is a nationwide system for comparative performance purposes, using standard formats," Mr. Miller wrote, adding that student learning was a main component that should be measured.

Mr. Miller was head of the Regents of the University of Texas a few years ago when they directed the university's nine campuses to use standardized tests to prove students were learning. He points to the test being tried there and to two other testing initiatives as evidence that assessment of writing, analytical skills and critical thinking is possible.

(Karen W. Arenson, The New York Times)


Why the fuck is a businessman dictating education policy? Someone needs to explain to him that all that standardized tests actually determine is whether (1) the student comes from a rich family, (2) the teacher was teaching to the test, and (3) the students are capable of memorizing. I have yet to see any evidence that critical thinking skills can be tested through multiple choice.

It's pretty clear to me that all attempts at national standardized testing, even prior to NCLB (No Child Left Behind), were miserable failures. And yet they're trying to force our very very successful higher education into this broken mold that didn't help lower ed.


NEA opposes proposals that would that imply a federal role in directing, evaluating, promoting, or cajoling any aspect of speech in education by students, professors, classroom teachers, or anyone else.
...
States, universities, community colleges, and K-12 systems have their own policies and practices for determining curricula, evaluating programs and employees, and resolving problems or disputes about fairness and protection of free speech.

NEA also opposes politicization of professional programs on campus through creation of an International Higher Education Advisory Board. Establishment of this new board would undermine a longstanding bipartisan consensus that the federal government should respect academic freedom and independence.

Current policy has been successful and should not be abandoned. The proposed Board could intrude into academic conduct and content of higher education and could impinge on institutional decisions about curriculum and activities.

(National Education Association (NEA))


The National Education Association is a nationwide union that represents most K-12 educators, as well as many higher education professors (including yours truly). Go read their statment, and follow the link to send an email to Congress about this issue.

08 February 2006

BlogZoot

I just ran across BlogZoot today (c/o BlogExplosion). It's the first blog about computers that I've actually found informative. If your tech comfort level falls squarely in "digital native" (higher than technophobe, but lower than sysadmin) as does mine, check them out to learn something new.

NASA budget increases for stupid things

Bush's 2007 budget proposal would give NASA a 3.2% increase. While this isn't quite enough to do actual science, Michael Griffin, head of NASA says


"There is enough money in the budget to support the president's priorities, as they have been stated."

Those priorities include returning the troubled space shuttle fleet to service, completing assembly of the international space station, remaining on the cutting edge of space science and astronomy, conducting aeronautics research and developing the next generation manned spacecraft that will return astronauts to the moon and later on to Mars.

(CNN)


Note that "remaining on the cutting edge of space science and astronomy" first puts space science (i.e., exploration) ahead of astronomy (research), and second is so damned vague they could be cancelling the JWST (Hubble successor) and it still would fit Bush's vision. Meanwhile the Space Shuttle and ISS have absolutely nothing to do with going forward in space exploration, and everything to do with trying to keep limping along the old, bad, way. It's like bailing a ship with lots of holes rather than building a new ship.

*grr* I guess it's better than a decrease in funding though. Marginally. Though maybe a decrease would get the public interested and fighting on behalf of astronomy.

07 February 2006

Papua New Eden

After one month spent in an isolated mountain valley of Papua (on New Guinea), scientists found

  • A new species of honeyeater, the first new bird species discovered on the island of New Guinea since 1939

  • The formerly unknown breeding grounds of a "lost" bird of paradise - the six-wired bird of paradise (Parotia berlepschi)

  • First photographs of the golden-fronted bowerbird displaying at its bower.

  • A new large mammal for Indonesia, the golden-mantled tree kangaroo (Dendrolagus pulcherrimus)

  • More than 20 new species of frogs, including a tiny microhylid frog less than 14mm long

  • A series of previously undescribed plant species, including five new species of palms

  • A remarkable white-flowered rhododendron with flower about 15cm across

  • Four new butterfly species [BBC]


More pictures of the creatres are available.

It's really amazing to be finding new species, even whole regions of new species, in this day and age, when we've explored so much of the world already, and are destroying species so quickly. Even the indigenous people of the region didn't know of this mountain valley, it wasn't in their history at all.

05 February 2006

2-D Time

This presentation (by Alexander Franklin Mayer) was apparently slashdotted, but I heard of it through other means. It is arguing a new cosmology, in which rather than there being a Big Bang, inflation, Dark Matter, and Dark Energy, there's "simply" some six dimensions (or more) to spacetime. The old model says that there's four dimensions - 3 dimensions of space (x, y, z) and time (t). This radical model says that instead time itself is orthogonal (perpendicular) to space wherever it's located, and since space is warped, time takes up more than one dimension. This has a few interesting results.

  1. Dark matter is not required.

  2. Dark energy is not required.

  3. The CMB (cosmic microwave background), which traditionally is a result of the reionization period, is now explained by gravity.

  4. The universe is eternal, and has eternally been in dynamic equilibrium, with only local changes.


Item #4 is fishy to me. I don't see how galaxies, once evolved, can be recycled into the rest of the universe. Mayer also mentions the concept of not being able to see time orthogonal to your own. I would speculate that you can only see the projection of somewhere else's time onto your own time axis. Somewhere with their time vector going 180º to ours would appear to be evolving backwards. I think the point of this talk is that it's not well understood, and he claims to have another self-consistent model, and more data is required to determine whether his or the traditional one works better with the observations.

Mayer then gets into some theoretical geometry - such as how you can explain why we see fewer galaxies in the past if we assume either non-Euclidian geometry or assuming accelerating expansion. He kinda glosses over how it could be instead a measurement bias (it's harder to see further, fainter galaxies), or just that there were fewer galaxies. So basically, his talk is just a little too complex for a layperson, and some parts are a little too simple for someone who knows his stuff. I don't blame him really, it's damned hard to present complex material at the appropriate level!

I made it to around slide 24 (of 90) before it started overwhelming me. It's tough for me to wrap my head around this stuff. I understand some of cosmology in general just enough to follow it, but not enough to explain it well yet. If you, gentle reader, have specific questions, I would enjoy answering them, as I find that trying to explain to others often helps me further my own understanding. I won't guarantee I'll be right, or even comprehensible, but I shall try my best. :)