Wheat-dogg's World

Various ramblings from a former physics teacher now living in China

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Archive for the ‘Science’ Category

Another eclipse picture

Posted by wheatdogg on December 11, 2011

Moon near end of totality

The Moon near the end of totality.

JISHOU, HUNAN — I had to Photoshop this one a bit to clean it up. I mistakenly had the Tamron’s vibration control on, and the resulting movement smeared the Moon’s image, but left the star images intact.

This is a 10-second exposure with the lens zoomed to 230 mm, taken near the end of totality around 11:00 pm local time. Everything else is the same: Nikon D60 on tripod, Tamron 70-300 zoom lens, f5.6, ASA 200.

The stars surrounding the Moon are fainter members of Taurus: from top left going clockwise, 13 Tau/HIP23900A, iota Tau/HIP23497, HIP23589, 15 Tau/HIP23883 (closest apparently to Moon here), and L Tau/HIP 23871. Iota Tau is a member of the Hyades star cluster, whose V-shape outlines the horns of the bull. The stars of the Hyades are about 150-160 light-years away from Earth.

How do I know which star is which? It’s not an encyclopedic memory or fancy astronomy equipment. I used Stellarium, a free planetarium application for your computer. Here’s a screen shot of Stellarium showing the same view on my desktop.

Stellarium simulation

Screenshot of Stellarium view of Moon at 11:00 pm Dec 10, 2001

Stellarium will give you details about any object you click on.

Interestingly enough, 15 Tau, which in this photo appears closest to the Moon, is actually the farthest star of the five from us. It’s 1032 light-years away. That’s some old light there.

Posted in Astronomy, Science | Tagged: , , , | 2 Comments »

Lunar eclipse, December 10, 2011

Posted by wheatdogg on December 11, 2011

Eclipsed Moon and Alnath (Beta Tauri)

Alnath (β Tau) and the eclipsed Moon -1 sec exposure

JISHOU, HUNAN — I caught the total lunar eclipse about halfway through totality. I didn’t do all the good stuff, like wait for the equipment to cool to ambient temperature (0°C here), because I almost forgot to go out. So, out of 25 shots I got three halfway decent ones. The focus seems to be a bit off, I fear.

The three images here are of the Moon toward the end of totality. You can just barely see it brighten on the lower right edge as it leaves the Earth’s shadow. The star to the left is Alnath (β Tauri), the second brightest star in Taurus. Alnath is a bluish-white B-class star, about 700 times brighter than the Sun, 4.5 times heavier and 5 times bigger. It’s 131 light-years away.

I used a tripod-mounted Nikon D60 with a 70-300 Tamron zoom lens at 70 mm, f5.6, ASA 200. The three exposures are 1.0 sec (above), 1.6 sec and 2.5 sec (below).

Alnath and Eclipsed Moon - 1.6 sec exposure

Alnath (β Tau) and eclipsed Moon - 1.6 sec exposure

Alnath and eclipsed Moon - 2.6 sec exposure

Alnath (β Tau) and eclipsed Moon - 2.6 sec exposure

Totality ended around 11:00 pm here.

Posted in Astronomy, Science | Tagged: , , | Leave a Comment »

John Freshwater: the gift that keeps on giving

Posted by wheatdogg on December 1, 2011

JISHOU, HUNAN — Back when I was a science teacher, I started blogged about an Ohio public school science teacher who got in hot water for (1) allegedly using a Tesla coil on his students, (2) teaching evolution was false and (3) going overboard with his religious proselytizing in the classroom.

Without going into a lot of details, let’s just say that teacher, John Freshwater of Mount Vernon, was removed from classroom teaching pending an administrative hearing about insubordination. After a two-year-long administrative hearing process, Freshwater lost his job earlier this year. He and the Mount Vernon school system were also named in a federal discrimination complaint brought by a student’s family; the school district settled out of court and Freshwater, following an unsuccessful appeal, also had to pay damages to the family. Meanwhile, he filed, and later dropped, his own discrimination complaint in federal court against the school system.

So, after all these proceedings which suggest that Freshwater was to some degree culpable, I learn that he has the nerve to play the victim card on David Barton and Rick Green’s WallBuilders Live radio program.

Here’s a partial transcript, courtesy of Right Wing Watch.

Freshwater: When the 2007/2008 school year came along, there was a new principal, a new Superintendent, and three new school board members and what took place that year was they wanted me to removed my Bible from my desk. And I felt I have academic freedoms and I thought I had the right to have my Bible on my desk, so I left it on my desk in 2007/2008 school year and they told me to remove it and that was when they suspended me – April 16, 2008 – they suspended me without pay and I’ve been in litigation since then, the last four years.

Green: What’s their complaint about having a Bible on your desk? I thought teachers were allowed to do that?

Freshwater: You know what? I thought so too, but they said I needed to remove it from my desk. Here is what it comes down to Rick, and it’s this: there is a lot of fear in public school teachers, especially Christian public school teachers. They put fear into them and they keep them ignorant; they don’t teach them, they don’t train them on it, so what a teacher does is they take off their religious beliefs, they take their hat off before they walk into a public school building because they don’t want to lose their job. They really don’t have a good understanding of this whole thing called religious belief and separation of church and state, it has been convoluted, it has been putting fear in the people and it is sad, it’s very sad for a public school teacher in a public school in America today.

Freshwater conveniently omitted the religious posters on his classroom walls, the shelf full of Bibles for students to borrow, his teaching of creationism in class, and comments disparaging Catholics, among others, as not being Christian, which were significant charges that led to his removal from teaching and the federal suit against him and the school system. It is true his principal told him to remove his Bible from his desk, so it was not in plain sight. It is also true that Freshwater refused, and also refused to change any of his other actions that got him and the school in hot water.

As for the malarkey that public school teachers have to leave their religion in the school parking lot, there are no laws that forbid teachers from keeping a Bible in their desk, praying privately or stating their own beliefs in a non-judgmental, non-threatening way to their students. There are laws, however, that forbid them from teaching creationism or Intelligent Design as valid “scientific theories” or using their teacher’s desk as a church pulpit to preach to a captive audience.

i won’t even mention the unprofessional, nay, stupid, practice of using a Tesla coil (technically, a high-voltage, high-frequency vacuum leak tester) to give volunteer students skin burns in the shape of an “x” (or a cross, depending on your viewpoint). These charges were also part of Freshwater’s legal woes, if not the catalyst that brought his other dubious actions to light.

Cry me a river, John Freshwater. You’re not a victim here. You’re the instigator — you made your own bed, now lie in it.

————-
If any readers are sufficiently curious to read about the Strange and Curious Case of John Freshwater, this link will take you to the Panda’s Thumb, where Richard Hoppe has chronicled in excruciating detail the whole saga.

Posted in Commentary, religion, Schools, Science | Tagged: , , , , , | 5 Comments »

Powers of Ten for the 21st century

Posted by wheatdogg on December 1, 2011

JISHOU, HUNAN — In 1968 Ray Eames and her husband Charles Eames (of Eames chair fame) released a remarkable short film called Powers of Ten. You may have seen it in a science class, if you were lucky. It opens with a couple having a picnic, then zooms in with ever increasing detail to an atomic nucleus, then zooms out at high speed into outer space. Each step decreases or increases the magnification by a multiple of ten.

You can watch at Vimeo.

Now there’s a Shockwave version of the same idea, by Cary and Michael Huang. A slide control allows you to explore at your own pace.

It takes a while to load, but it’s worth the wait. Nothing showy or (ahem) flashy, but neither was the Eames film.

Posted in Media, Physics, Science | Tagged: , , , , | Leave a Comment »

Complementarity and ‘America the Beautiful’

Posted by wheatdogg on October 21, 2011

Mouseover text: Colorado is working to develop coherent amber waves, which would allow them to finally destroy Kansas and Nebraska with a devastating but majestic grain laser.

It’s a physics joke. If you don’t get it, look up wave-particle duality and the Uncertainty Principle, which only exists as a Wikipedia entry when you are looking at it.

Quiz on Monday.

Posted in Physics, Science | Tagged: , | Leave a Comment »

Next step, actual flames …

Posted by wheatdogg on October 7, 2011

Steaming head

Somehow, yelling "Flame on!" just doesn't work

 
Human Torch

But it works for the Human Torch.

SANGZHI, HUNAN — OK, so I’m not really Johnny Storm, but it’s a cool photo, anyway. My friend snapped it as we were leaving Jiutian Cave here. After a long climb out of the cool, humid cave into the warm, drier surface air, I was sweating and my head was literally steaming.

The cave trip Thursday was my last excursion for the week-long National Holiday. Earlier in the week, I accompanied two friends (a young married couple) to a wedding in Huarong, a small city near Yueyang, Hunan. Then they drove me to Yueyang, where I met another friend and visited that city for two days. When I came back to Jishou on Wednesday, I literally turned right around and headed out again to Sangzhi with another friend, her cousin, aunt and uncle.

We also visited the reconstructed home of He Long, a revolutionary leader who was later purged during the Cultural Revolution. He was thrown into prison (where he died at age 74), his original home was razed, and his siblings were prevented from attending university. He didn’t get a formal state burial until 40 years after his death.

On our way back to Jishou, we stopped at a roadside marker for the Guzhang County “Golden Spike” — an international reference point for the sedimentary layer corresponding to stage 7* of the Cambrian Period beginning 503 million years ago. The rather elaborate marker includes relief images of Lejopyge laevigata trilobites, which made their first appearance at this time.

Interestingly enough, I live near another Golden Spike for the next stage of the Cambrian, about 499 million years ago, when Glyptagnostus reticulatus trilobotes first made their appearance. That Golden Spike is in Paibi, in Huayuan, the county just west of Jishou.

——
* Stage 7 apparently has two names: Guzhangian and Dresbachian (for a town in Minnesota). During the Cambrian Period, of course, such names had no meaning, since there was only one big continent (Gondwanaland) and a few smaller landmasses.

Posted in China, Physics, Science | Tagged: , , , | Leave a Comment »

Gorgeous amateur astrophotography images at the BBC website

Posted by wheatdogg on September 10, 2011

The Royal Observatory at Greenwich and Sky at Night magazine sponsor an astrophotography contest each year. The 2011 winners are highlighted in a slide show at the BBC website.

This is the overall winner, a mosaic of Jupiter with two of its moons, Io (left) and Ganymede. The details on all three images in this composite are amazing, and that’s what impressed the judges, too. Damien Peach used a Celestron 14-inch Schmidt-Cassegrain telescope with a Point Grey Flea3 CCD camera to capture these images.

Jupiter Io and Ganymede by Damien Peach

The overall winner of the 2011 Astronomy Photographer contest, by D. Peach

I want to highlight this one at left, too, because it shows a feature of our solar system not commonly seen.

Zodiacal light - Texas by H. Grady

The zodiacal light by Harley Grady

It was the winner in the Newcomer category, and shows the zodiacal light from a farm in Texas. You have to have exceptionally clear, dark skies to capture the zodiacal light, which is the very faint reflection of sunlight from the gas and dust within our own solar system.

Harley Grady took this image with a Canon EOS 5D Mk II DSLR camera with a 16-35mm lens, which shows what you can do with fairly simple equipment. All you need is a good tripod, or some other sturdy support, clear skies and some patience. Long exposure times bring out details our naked eyes cannot see.

You can also see the winners, picked from nearly 800 entries, at the Sky at Night website.

Posted in Astronomy, Science | Tagged: , , | 1 Comment »

Bachmann wants schools to teach religion in science class

Posted by wheatdogg on June 19, 2011

Michele Bachmann, CNN photo

Michele Bachmann, science ignoramus (CNN photo)

JISHOU, HUNAN — CNN reports the not-very-surprising news that Rep. Michele Bachmann (R-Minn.) favors teaching Intelligent Design (religion made science-y) in schools, right alongside evolution (actual science).

It’s not surprising, because Bachmann (and most of the other candidates for the GOP presidential nomination), are stubbornly in the Science (and History) Ignoramus class. Global warming? Liberal nonsense! Evolution? Atheist nonsense! Separation of Church and State? It was never there!

Intelligent Design is religious belief, Creationism with a different label, and the federal courts — most recently in 2005 — have ruled it cannot be taught in public schools, especially in science class. Period.

Yet, Bachmann and others stubbornly insist ID must be taught in public schools. Don’t they read the newspapers?

Here’s what she told CNN.

“I support intelligent design,” Bachmann told reporters in New Orleans following her speech to the Republican Leadership Conference. “What I support is putting all science on the table and then letting students decide. I don’t think it’s a good idea for government to come down on one side of scientific issue or another, when there is reasonable doubt on both sides.”


WRONG!!

There is no “reasonable doubt” about evolution, at least among sensible people and especially not among scientists. There are no two sides about evolution, any more than there are two sides about Einstein’s theory of gravity, or the atomic theory, or continental drift. They are all accepted scientific theories, supported by piles of evidence.

She’s repeating the worn-out “teach the controversy” ploy of the ID community. It goes like this:

  1. Assume that evolution is a belief system, not an empirical theory.
  2. Pretend that there is lack of consensus about this belief system.
  3. Couch objections to teaching evolution in school in “Big Brother” or “atheistic government” terms.
  4. Appeal to the reasonable concept that students should hear all sides of an issue.
  5. Insist that Intelligent Design is a suitable scientific explanation for the diversity of life on Earth.
  6. Propose that ID and evolution be taught as alternative theories, and let the students decide which is “better science.”

To the layman, this all seems perfectly reasonable. After all, we can discuss socialism and capitalism in history classes, why not creationism — sorry, Intelligent Design — and evolution in biology class?

But science is not the same as political theory. Science depends on observations, experiments, logical deduction and induction, self-consistency, explanatory power, predictability and (most importantly for this discussion) rejection of supernatural causes for natural events.

The underlying premise of ID is that some unseen being/force/architect/mechanic/God created life forms more or less as they appear now, perhaps as early as just a few thousand years ago. We cannot prove such a Designer exists, since he/she/it is undetectable by natural means, so this Designer is supernatural.

In addition, since ID assumes a Designer is looking down (or around, or up, or sideways) at Life on Earth, he/she/it might decide at any time to poof! create something new, or eliminate something altogether. Thus, there is no real predictability to this so-called theory, since we cannot anticipate God’s decisions. — Sorry, did I say God? I meant the Intelligent Designer.

You don’t need to my word for it. US District Judge John Jones, a Republican appointee, ruled in Kitzmiler v. Dover Board of Education (2005), after a lengthy court trial, that ID is nothing but Creationism — religious belief — dressed up as a “science,” and very poor science, at that.

The overwhelming evidence at trial established that ID is a religious view, a mere re-labeling of creationism, and not a scientific theory. (Source)

and

ID’s backers have sought to avoid the scientific scrutiny which we have now determined that it cannot withstand by advocating that the controversy, but not ID itself, should be taught in science class. This tactic is at best disingenuous, and at worst a canard. The goal of the IDM is not to encourage critical thought, but to foment a revolution which would supplant evolutionary theory with ID. (Source)

Bachmann, incidentally, implies that “government” should allow public schools to “teach the controversy,” which is a polite way of saying the government should require it. (Several states have legislation pending, or have already passed laws, requiring ID or creationism be taught in public schools. Louisiana, where she was speaking, is one of them that passed such a law.)

So, on the one hand, she says the government should stay out of education, while on the other hand, she says it should not. After all, the religious right, of which Bachmann is a member, really, really wants to put religion (their form of it) in the public schools, if they are not trying to eliminate public schooling altogether.

Pay close attention to what Bachmann, and the other GOP candidates, say about science and education. Then ask yourself if that is the kind of thinking that would enable the USA to continue being a leader in science and technology.

And then vote for someone else.

Posted in China, Civil liberties, Politics, Science | Tagged: , , , , , , | Leave a Comment »

Get Ben Stein’s movie

Posted by wheatdogg on June 10, 2011

JISHOU, HUNAN — Want to buy a propaganda film really cheap? Now’s your chance. Expelled: No Intelligence Allowed is now available to the highest bidder.

Expelled was the 2008 embarrassment that tried to prove once and for all there was a vast conspiracy to teach evolution while suppressing Intelligent Design and other “explanations” of life on Earth, and putting Hitler in power. Or something like that. The New York Times called it “one of the sleaziest documentaries to arrive in a very long time.”

Narrated and hosted by the riveting Ben Stein, it tanked at the box office, so badly it seems, that its production company, Premise Media, is in bankruptcy court.

According to a document (PDF) filed in the United States Bankruptcy Court of the Northern District of Texas, Dallas Division, on May 31, 2011, the trustee of the bankruptcy estate is seeking to auction “[t]hat certain feature-length motion picture (‘Picture’) ‘Expelled: No Intelligence Allowed’ and all collateral, allied, ancillary, subsidiary and merchandising rights therein and thereto, and all properties and things of value pertaining thereto.” The auction is scheduled to take place on-line from June 23 to June 28, 2011.

As awful as the movie was, I reckon somebody will probably bid on it. I hope the winner is a film collector, who will stash it in a vault somewhere, and not some Intelligent Design fanboy, who will try to inflict it on us again.

————————–
POSTSCRIPT: Back in 2008, I did a critique of the Expelled teacher’s guide. The National Center for Science Education also has a more elaborate debunking of the movie.

Posted in Commentary, evolution, Media, Science | Tagged: , , , , , , | Leave a Comment »

More pesky high school students

Posted by wheatdogg on June 1, 2011

JISHOU, HUNAN — And I’m not talking about Archie and Jughead, or even Beavis and Butthead.

Amy Myers the Bachmann Slayer (and Scourge of the Right Wing) is not the only high school student making national news. Damon Fowler and Zack Kopplin, both of Louisiana, have made some national waves recently, too.

Fowler is a 2011 graduate of Bastrop High School in Bastrop, La. Earlier this term, he learned that there would be a school-sanctioned official prayer at his graduation ceremony. He objected, and asked that the prayer be scotched. (FYI, the Supreme Court has held that public school-sponsored prayers are verboten under the First Amendment, which Fowler knows but the school apparently didn’t.)

The ACLU followed up with a letter advising the school of the legal requirements and ramifications. School officials agreed to forgo the prayer. As if. In the meantime, the community got wind of Fowler’s objections and the shit hit the fan.

Fowler got threats of violence and death. His fellow students turned on him. One of his teachers publicly berated him. His parents kicked him out of the house, and put his possessions (except his PS3) out on the porch.

The graduation went on without him, since he reckoned attending put him at some risk. And a prayer was said by a student, supposedly against the wishes of the administration but basically within the letter of the law.

On the bright side, Fowler is living with his sister in Texas, and an atheist website has raised more than $30,000 for him to attend college, since his parents cut him off.

Kopplin is a Baton Rouge high school senior who objects to his state’s so-called science education law, which encourages, nay requires teaches in Louisiana to explain that evolution is only one possible explanation for the diversity of life on Earth, creationism/Intelligent Design being another.

He challenged Rep. Michelle Bachmann (R-Minn.) to a debate about creationism. Myers, of New Jersey, also challenged Bachmann to a debate on American history and the Constitution.

Bachmann has so far ignored both challenges.

Kopplin’s letter to Bachmann begins:

I’m a 17 year old from Louisiana, and I’m calling Congresswoman Michele Bachmann’s bluff when it comes to creationism and Nobel Laureate scientists.

In 2004, while she was in the Minnesota State Senate, Congresswoman Bachmann tried to pass SF 1714, a bill similar to my state’s creationism law, the Louisiana Science Education Act (LSEA), which I’m fighting to repeal. This misnamed and misguided law creates a way to sneak the teaching of creationism into Louisiana public school science classrooms.

The LSEA is hurting my state and the students in it. And now, as the congresswoman is laying the groundwork to run for President, she is upping the ante for the rest of the country by bringing an anti-science, creationist stance to the national stage. Why is this a junk hand for students? Just look at the lessons from Louisiana. Colleges both at home and across the country may question our science education and withhold admission because of our dubious science background. In addition, Louisiana students may lose out on cutting edge science jobs to kids from countries like China and Britain where they teach accurate science and the theory of evolution.

He demands that Bachmann “show him the money” and say who her anti-evolution experts are.

Kopplin later appeared on MSNBC’s Hardball, and made quite an impression. Interestingly enough, he’s the son of Andy Kopplin, Baton Rouge Mayor Mitch Landrieu’s chief of administration.

While there is an active group of teachers, students, parents and scientists lobbying for the repeal of the act, Kopplin has become the lightning rod for criticism and condemnation. Typical of the reactions is this opinion piece from the Shreveport (La.) Times, whose author demonstrates a poor understanding of both science and Constitutional law.

The Times recently carried a front-page article titled “Group seeks repeal of science education act.” (Baton Rouge) High School senior Zack Kopplin, who is on the front line in this imbecilic group, should wait until he has a little more experience in the real world of ACLU actions in this country.

The ACLU, an organization started in communism, convinced our exalted and supposedly intellectual Supreme Court to affirm that the U.S. Constitution means a separation of church and state. It says nothing of the kind. It does say for Congress to keep hands off.

It was not Congress but the Supreme Court, educated beyond its capacity to understand, that gave the ACLU a law to go after anything Christian in the schools and public places. This has led to untold havoc in this nation, helped and abetted by the elements that want to force-feed the theory of evolution to American students. Russia excelled in this.

Evolution is a theory, not factual or scientific. The article says teachers, scientists and college professors (doesn’t say which ones) are backing Sen. Karen Carter Peterson’s bill (Senate Bill 70) in the Senate. They are asking (telling) students that the “big bang” arranged everything in the universe and somehow started life on Earth with a one-celled animal and, surprise, this is where they came from.

They brook no opposition or discussions, which is all the present law advocates. How ignorant can you get?

I ask them to look around and see what has happened in this country since they took God out of schools and everything public. We have an ungodly crowd making laws in this nation.
- Kenny W. Hopkins

Hopkins repeats a lot of fallacies familiar to us who follow the creationism “movement.” Here are the answers.

The First Amendment established separation of church and state in 1787. Even before the ACLU was established, the Supreme Court maintained that government institutions (such as public schools) cannot foster one religion over any other. While it is true the ACLU has participated in many cases involving religion in schools (see above, Damon Fowler), the ACLU itself does not serve as the plaintiff. It advises or represents the plaintiffs.

The Supreme Court cannot give a law. Congress passes bills, and the president signs them into law. The Supreme Court can rule laws are unconstitutional, and then Congress can try again. This is all in the Constitution, by the way. Something about checks and balances.

There is no law banning prayer in schools. Students can lead prayers at public events. Teachers and administrators cannot. Teachers and administrators are free at any time to pray privately. They cannot induce or require students to follow suit. This is not rocket science.

Russia (I suppose he means the former Soviet Union) did not teach Darwinian evolution, but Lamarckianism, which had been discredited as a theory in the “capitalist West” early in the 20th century. Lamarck proposed that offspring inherited characteristics their parents acquired during their lifetimes. Thus giraffes had long necks because they repeatedly stretched to reach the tops of trees, for example.

Evolution is not “force fed” to students, any more than math or English is. It’s a scientific theory, supported by craploads of evidence (aka facts) , and accepted by most of the world’s scientists. In addition, geology and cosmology corroborate the basic assumptions of evolution.

Creationism/intelligent design is not science. It is religious belief, which a public school cannot teach. The ruling in the 2005 Kitzmiller v. Dover case clearly established that Intelligent Design is just another word for creationism, as in the story of Genesis.

Public school teachers are required to teach science. Public school teachers cannot teach religion. We call that separation of church and state. Those teachers and their students are free to believe whatever they like. No one is forcing anyone to “believe” in evolution. The students just have to know enough to pass their tests, for pete’s sake.

“We have an ungodly crowd making laws in this nation.” That would be the Constitutional Convention, I reckon, since those delegates are the ones who drafted the Constitution, which the states later ratified. Why does Hopkins hate the Founding Fathers?

It’s a little sad in some ways that some high school students know more about science and the law than the majority of adults (including lawmakers).

On the other hand, I’m glad someone has a brain.

Posted in Civil liberties, Commentary, religion, Schools, Science | Tagged: , , , , , , , , | Leave a Comment »

 
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