Science Updates

[Black Orchid]

You would never get me on something like that. Never ever!

[Super Nova]

Robots are coming get ready.

http://www.telegraph.co.uk/science/1018 ... uards.html

[Rorschach]

New Element
Ununpentium...

http://www.news.com.au/technology/sci-t ... 6705819924

[Super Nova]

Ok all you dads. How is going to admit they are caring now.

Smaller Testicles Linked with Caring Fathers

scientists aren't sure whether men who make more sperm are genetically wired to be detached dads, or whether early life experience or the act of caring for children leads men's bodies to invest less in sperm-making, thereby causing their testicles to shrink

http://www.scientificamerican.com/artic ... ed-fathers

[Rorschach]

Has the Big Bang theory been busted?
* by: BY STAFF WRITERS
* From: news.com.au
* September 17, 2013 6:42PM



WHAT if we told you the Big Bang was a myth?

That's right. Everything we know about the universe may be wrong.

Cosmologists have speculated that the universe was created after a star collapsed into a black hole - a theory that helps to explain why it seems to be expanding in all directions.

The Big Bang theory suggests that the universe was created from an a single point in the universe but despite years of research, nobody yet knows what triggered the eruption.

It also fails to explain why the Universe has an "almost completely uniform temperature."

"There does not seem to have been enough time since the birth of the cosmos for it to have reached temperature equilibrium," researchers explain in the scientific journal, Nature.

Astrophysicists from the Perimeter Institute for Theoretical Physics in Waterloo, Canada have released a paper discussing a previous theory out of Germany that posited that the universe is a three-dimensional "membrane" floating through a four-dimensional "bulk universe".

A bulk universe is a very complicated concept out of string theory that puts forward the idea that space is a plane of infinite dimensions through which other planes of infinite dimensions float.

The team claimed that if the "bulk universe" contained four dimensional stars, some of them could collapse and cause black holes in the same way that stars in our universe do - they turn in supernovae, ejecting their outerlayers while their inner layers collapse into the black hole.

Black holes in our universe are spherical in shape and possess some kind of "membrane" that keep them that way. These "membranes" are known as "event horizons". Anything that passes through this event horizon is done for, because the gravitational pull is so great it makes escape impossible. In our universe only a two dimensional object is capable of becoming an event horizon within a black hole, Nature explained. Whereas in a bulk universe, the event horizon of a four dimensional black hole would have to be three dimensional, known as a "hypersphere".

Confused yet? We don't blame you.

In a nutshell this means that a star floating through a multidimensional plane got sucked into a black hole, half of it got swallowed up and the other half that survived spawned the creation of the universe.

The fact that our universe is expanding in all directions could be a sign simply of cosmic expansion, rather than as the origin of the universe itself, the researchers suggest.

"Astronomers measured that expansion and extrapolated back that the Universe must have begun with a Big Bang - but that is just a mirage," said team member Niayesh Afshordi.

However, the theory has some holes. (Get it, holes?)

So far it doesn't entirely answer how the expansion of the universe occurred.

The European Space Agency recorded slight fluctuations in the temperature of the universe and found that the cosmos contained imprints of radiation that matched predictions made in the Big Bang theory. Obviously this creates a discrepancy in the astrophysicists' research.

The scientists say they're going back to the drawing board to adjust their model.

Stay tuned. Everything we may know about the universe may be wrong.

http://www.news.com.au/technology/sci-t ... 6721187118" onclick="window.open(this.href);return false;

[Chard]

Nothing about current Brane theory understanding contradicts the Big Bang Theory. The three laws of thermodynamics explain perfectly why the universe has such an even temperature distribution. Reuters staff writers don't understand how science works and predictable get it wrong.

[AiA in Atlanta]

[boxy]

[Super Nova]

Carbon Nanotube Computer Hints at Future Beyond Silicon Semiconductors

More of Moore’s Law: A scalable process could realize the dream of carbon nanotube transistors that would be much smaller and more efficient than today’s silicon chips



http://www.scientificamerican.com/artic ... nd-silicon

[Super Nova]

Nasa plans first 3D printer space launch in 2014



Cygnus cargo ship docking with International Space Station 3D printing in the International Space Station could reduce the cost and frequency of resupply missions Continue reading the main story

US space agency Nasa is planning to launch a 3D printer into space next year to help astronauts manufacture spare parts and tools in zero gravity.

It will be the first time a 3D printer has been used in space and could help reduce the costs of future missions.

The device will have to withstand lift-off vibrations and operate safely in an enclosed space station environment.

Nasa has chosen technology start-up Made in Space to make the microwave-sized printer.

"Imagine an astronaut needing to make a life-or-death repair on the International Space Station," said Aaron Kemmer, the company's chief executive.

"Rather than hoping that the necessary parts and tools are on the station already, what if the parts could be 3D printed when they needed them?"

In 1970, Apollo 13 astronauts had to cobble together a home-made carbon dioxide filter using a plastic bag, a manual cover and gaffer tape.

Made in Space scientists work on the 3D printer prototype Made in Space scientists work on the 3D printer prototype
A 3D printer might have solved the problem in minutes and helped them reach the Moon.

"If you want to be adaptable, you have to be able to design and manufacture on the fly, and that's where 3D printing in space comes in,'' said Dave Korsmeyer, director of engineering at Nasa's Ames Research Center.

Nasa is also experimenting with 3D printing small satellites that could be launched from the International Space Station and then transmit data to earth.

Additive manufacturing, as 3D printing is also known, builds up objects layer by layer, commonly using polymer materials.

But laser-melted titanium and nickel-chromium powders are now being used to build much stronger components.

In August, Nasa successfully tested a metal 3D printed rocket component as part of its drive to reduce the costs of space exploration.

http://www.bbc.co.uk/news/technology-24329296