Friday, June 03, 2011

From Best of the Web on the Wall Street Journal Opinion web page

You know how scientists are always doing medical experiments on rodents? It turns out those studies have real-world applications, as this Associated Press story suggests:
A flight crew checking the cabin of a Qantas plane before takeoff found rats in a compartment holding medical equipment, grounding the plane for more than a day, a spokeswoman said Thursday.
Crews did a visual check of the plane Tuesday afternoon and found no more rats or any damage. The rodents had been in a cabinet holding a defibrillator.
It was really cute when, just before applying the electric shock, one of the little fellas squeaked "Clear!"

Friday, May 27, 2011

Found: Missing Mass

A 22-year-old Australian university student has solved a problem which has puzzled astrophysicists for decades, discovering part of the so-called "missing mass" of the universe during her summer break.
Undergraduate Amelia Fraser-McKelvie made the breakthrough during a holiday internship with a team at Monash University's School of Physics, locating the mystery material within vast structures called "filaments of galaxies".
Monash astrophysicist Dr Kevin Pimbblet explained that scientists had previously detected matter that was present in the early history of the universe but that could not now be located.
"There is missing mass, ordinary mass not dark mass ... It's missing to the present day," Pimbblet told AFP.
"We don't know where it went. Now we do know where it went because that's what Amelia found.

Wednesday, May 18, 2011

Bedbugs: They're Baaack




After a half-century of relative inactivity in the U.S., bedbugs returned in the late 1990s. Nationwide, 95 percent of pest-control companies have treated an infestation in the past year. A decade ago, it was just 22 percent.
In the 1940s and ’50s, liberal use of DDT and other insecticides all but wiped out the pests. Scientists hypothesize that the few that survived proliferated—females can lay up to five eggs a day, and 500 during a lifetime—and passed along pesticide-resistant traits. Millions of bedbug generations later, scientists are finally zeroing in on how, exactly, bedbugs made their comeback.

 Do your best not to get 'em.

By the way, I call this little fellow "Andy."

Tuesday, May 17, 2011

The Touch of the Master's Hand


I found this poem mentioned the other day and thought it worth posting. Enjoy.
It was battered and scarred,
And the auctioneer thought it
Hardly worth his while
To waste his time on the old violin,
But he held it up with a smile.
"What am I bid, good people", he cried,
"Who starts the bidding for me?"
"One dollar, one dollar, Do I hear two?"
"Two dollars, who makes it three?"
"Three dollars once, three dollars twice, going for three", But, No,
From the room far back a grey haired man
Came forward and picked up the bow,
Then wiping the dust from the old violin
And tightening up the strings,
He played a melody, pure and sweet,
As sweet as the angel sings.
The music ceased and the auctioneer
With a voice that was quiet and low,
Said "What now am I bid for this old violin?"
As he held it aloft with its' bow.
"One thousand, one thousand, Do I hear two?"
"Two thousand, Who makes it three?"
"Three thousand once, three thousand twice,
Going and gone", said he.
The audience cheered,
But some of them cried,
"We just don't understand."
"What changed its' worth?"
Swift came the reply.
"The Touch of the Masters Hand."
And many a man with life out of tune,
All battered with bourbon and gin,
Is auctioned cheap to a thoughtless crowd
Much like that old violin.
A mess of pottage, a glass of wine,
A game and he travels on.
He is going once, he is going twice,
He is going and almost gone.
But the Master comes,
And the foolish crowd never can quite understand,
The worth of a soul and the change that is wrought
By the Touch of the Master's Hand.

"The Master's Hand" was written by Myra Brooks Welch.

Thursday, May 05, 2011

Physics: Not all it seems to be

The range of phenomena physics has explained is more than impressive; it underlies the whole of modern civilization. Nevertheless, as a physicist travels along his (in this case) career, the hairline cracks in the edifice become more apparent, as does the dirt swept under the rug, the fudges and the wholesale swindles, with the disconcerting result that the totality occasionally appears more like Bruegel’s Tower of Babel as dreamt by a modern slumlord, a ramshackle structure of compartmentalized models soldered together into a skewed heap of explanations as the whole jury-rigged monstrosity tumbles skyward.
A physicist notes the inconsistencies and holes that exist in this study of nature.

Worth reading the whole thing.

Friday, April 29, 2011

Great slide show: How to tear down a nuclear power plant

Click on the link above to see a great slides show of the Fukushima Daiichi nuclear power plant destruction and work to stop the reaction.  

Thursday, April 28, 2011

The finger of God

Tuition costs: Dependent on your major

The University of Nebraska--Lincoln is considering charging engineering majors more than, say, English majors.

[T]he proposal is expected to allow UNL, for the first time, to charge more tuition for some undergraduate programs than for others.

It would be a watershed departure from the concept that all Nebraska resident undergraduates should pay the same tuition for their degrees — currently $198.25 per credit hour — no matter what they study.

UNL previously dipped its toe into this water, however, by enacting a $40 per credit hour fee for engineering classes in 2007. Unlike traditional laboratory fees often charged for certain classes, the fee was not directly linked to a specific classroom expense.

At first glance, this almost makes sense. If students major in a field that costs more to teach, then perhaps it makes sense to charge more for the education. Engineering requires more lab work, more equipment, and maybe better teachers. So, perhaps students should pay for that. English, on the other hand, does not require particular facilities, at least not like those of engineering.

But, if you read the article, university costs are not the issue, at least not by major. The thinking is that an engineering student would make more money upon graduation and could therefore be charged more for his education. The proposed scheme is not based on university costs by major, but rather university costs in total and then those costs are skewed based on expected salaries.

Seems to me that an engineer could argue for a lower price if he promised to take a low paying job. Silly, isn't it?

PHD comics: The grand unified theory


While the video from PHD comics doesn't say it explicitly, what we're starting to see is the connection between cosmology and particle physics.

Physics who study the heavens are now interacting with physicists who study the nature of matter. For years, these were separate endeavors with little in common. Now, the scientists are finding common ground.

You heard it here: These collaborations will yield the Grand Unified Theory!

Watch the video, it's worth a few minutes.