Powers of Ten

You all remember The Known Universe, right? This one came first.

Mad Something

Planets Screw-up Science!

Well, not really:

The disk spins, rotating around its center like a DVD (though stuff toward the center goes around faster than stuff near the outer edge). The middle of the disk is where the star forms. Farther out, local eddies and vortices can form planets. But the important thing to note is that in this scenario, everything spins in the same way. If the disk appears to be spinning clockwise, say, then the star will spin that same way, the planets will orbit that same way, and the planets will spin that same way. We’re pretty sure this is how things work because that’s pretty much what’s happening in our own solar system.

This theory has been tested by observation and by increasingly complex modeling. Sometimes there are problems with it, but in general new ideas have been added that fix those problems, and over time we’ve been pretty happy overall with the idea that stars and planets form this way.

However, a bunch of newly discovered planets have messed this nice idea up. They orbit their stars the wrong way!

TV Science vs an "Actual Science" TV Show

Read the whole comic.

Solar Cell With >90% Efficiency!

Created at Caltech:

"These solar cells have, for the first time, surpassed the conventional light-trapping limit for absorbing materials," says Harry Atwater, Howard Hughes Professor, professor of applied physics and materials science, and director of Caltech's Resnick Institute, which focuses on sustainability research.

The light-trapping limit of a material refers to how much sunlight it is able to absorb. The silicon-wire arrays absorb up to 96 percent of incident sunlight at a single wavelength and 85 percent of total collectible sunlight. "We've surpassed previous optical microstructures developed to trap light," he says.

Yes, Men, Cars Can Effect Your Attractiveness

It turns out that cars do have a measurable effect on the perceived attractiveness of men by women. Not the other way, however.

BOOM!

On Bad Astronomy

The Known Universe

Found as today's Astronomy Picture of the Day, which will be different from tomorrow's.

Dandelions and Orchids

From "The Science of Success":

This vulnerability hypothesis, as we can call it, has already changed our conception of many psychic and behavioral problems. It casts them as products not of nature or nurture but of complex "gene-environment interactions." Your genes don't doom you to these disorders. But if you have "bad" versions of certain genes and life treats you ill, you're more prone to them.

...

The Swedes, Ellis and Boyce noted in an essay titled "Biological Sensitivity to Context," have long spoken of "dandelion" children. These dandelion children—equivalent to our "normal" or "healthy" children, with "resilient" genes—do pretty well almost anywhere, whether raised in the equivalent of a sidewalk crack or a well-tended garden. Ellis and Boyce offer that there are also "orchid" children, who will wilt if ignored or maltreated but bloom spectacularly with greenhouse care.

At first glance, this idea, which I'll call the orchid hypothesis, may seem a simple amendment to the vulnerability hypothesis. It merely adds that environment and experience can steer a person up instead of down. Yet it's actually a completely new way to think about genetics and human behavior. Risk becomes possibility; vulnerability becomes plasticity and responsiveness. It's one of those simple ideas with big, spreading implications. Gene variants generally considered misfortunes (poor Jim, he got the "bad" gene) can instead now be understood as highly leveraged evolutionary bets, with both high risks and high potential rewards: gambles that help create a diversified-portfolio approach to survival, with selection favoring parents who happen to invest in both dandelions and orchids.

Antibody for Cancer?

Possibly.

From the paper's abstract:

[T]he present study indicates that mAb F77 defines a unique prostate cancer marker and shows promising potential for diagnosis and treatment of prostate cancer, especially for androgen-independent metastatic prostate cancer.

Top 10 quirky science tricks for Christmas parties

Which is Real?

From Reuters:

Luigi Garlaschelli, a professor of organic chemistry at the University of Pavia, reproduced the full-sized [Shroud of Turin] using materials and techniques that were available in the middle ages.

I wish Reuters said how he made it because I want to make one, too.

Edit@2:35

Found it:

They placed a linen sheet flat over a volunteer and then rubbed it with a pigment containing traces of acid. A mask was used for the face.

PIGMENT, BLOODSTAINS AND SCORCHES

The pigment was then artificially aged by heating the cloth in an oven and washing it, a process which removed it from the surface but left a fuzzy, half-tone image similar to that on the Shroud. He believes the pigment on the original Shroud faded naturally over the centuries.

They then added blood stains, burn holes, scorches and water stains to achieve the final effect.

It's the reason humans do anything.

Did Early Humans Start Walking for Sex?

The big news in the journal Science tomorrow is the discovery of the oldest human skeleton—a small-brained, 110-pound female of the species Ardipithecus ramidus, nicknamed “Ardi.” She lived in what is now Ethiopia 4.4 million years ago, which makes her over a million years older than the famous “Lucy” fossil, found in the same region thirty-five years ago.

Buried among the slew of papers about the new find is one about the creature’s sex life. It makes fascinating reading, especially if you like learning why human females don’t know when they are ovulating, and men lack the clacker-sized testicles and bristly penises sported by chimpanzees.

Carl Sagan - 'A Glorious Dawn' ft Stephen Hawking

Quite possibly the best use of AutoTune to date:

Lyrics:

[Sagan]
If you wish to make an apple pie from scratch
You must first invent the universe

Space is filled with a network of wormholes
You might emerge somewhere else in space
Some when-else in time

The sky calls to us
If we do not destroy ourselves
We will one day venture to the stars

A still more glorious dawn awaits
Not a sunrise, but a galaxy rise
A morning filled with 400 billion suns
The rising of the milky way

The Cosmos is full beyond measure of elegant truths
Of exquisite interrelationships
Of the awesome machinery of nature

I believe our future depends powerfully
On how well we understand this cosmos
In which we float like a mote of dust
In the morning sky

But the brain does much more than just recollect
It inter-compares, it synthesizes, it analyzes
it generates abstractions

The simplest thought like the concept of the number one
Has an elaborate logical underpinning
The brain has it's own language
For testing the structure and consistency of the world

[Hawking]
For thousands of years
People have wondered about the universe
Did it stretch out forever
Or was there a limit

From the big bang to black holes
From dark matter to a possible big crunch
Our image of the universe today
Is full of strange sounding ideas

[Sagan}
How lucky we are to live in this time
The first moment in human history
When we are in fact visiting other worlds

The surface of the earth is the shore of the cosmic ocean
Recently we've waded a little way out
And the water seems inviting

Coffee Makin' Robot

via Topless Robot

The Science News Cycle Revealed!

Funny (and/or tragic) because it's true...

Science Is Awesome!

Improving fuel cells through farting!

It works like this: giving small jolts of electricity to single-celled microorganisms known as archea prompts them to remove C02 from the air and turn it into methane, released as tiny "farts." The methane, in turn, can be used to power fuel cells or to store the electrical energy chemically until its needed.

Beam me up!

Teleportation over distance has been achieved.

Sure, it's not Star Trek, but it's still damned cool.

What do we live in?

Perhaps a hologram?

The Night Sky

Today, NASA's Astronomy Picture of the Day posted a cool video of the sky in motion.


túrána hott kurdís by hasta la otra méxico!
from Till Credner on Vimeo.

And then I go and read yesterday's Overcompensating (it wasn't up when I checked yesterday) to read an explanation of how astronomy started.

Sometimes the 'nets sure is grand.