The Official Science Thread

I'm a good way into these. Very interesting if you don't know a ton of stuff about science. I'm sure there is people here that to them this is basic stuff but to the average educated person it may be very insightful.

http://www.youtube.com/playlist?list=PL101E166E120852F9

I leaned a new number that I can use in here...
Instead of the mundane
+1
I'll use from now on
+(Graham's Number)
or, a short hand
+G64

Originally Posted by Master Po

I leaned a new number that I can use in here...
Instead of the mundane
+1
I'll use from now on
+(Graham's Number)
or, a short hand
+G64

Just slightly excessive

Originally Posted by cowmoo32

Just slightly excessive

You can cut that by half.
You can even divide that by ten. By a thousand.
I'm still good.

I thought this looked pretty interesting.

Record-Breaking Phoenix Galaxy Cluster: By the Numbers

The faraway Phoenix galaxy cluster may be the biggest and brightest such structure ever discovered, and it's forming stars at an unprecedented rate, scientists announced today (Aug. 15).

Gallery: http://www.space.com/17125-phoenix-g...telescope.html

This is part of the Big Think series.
Should this bring Griff in here to lighten up the room?

Originally Posted by jeffro3000

I thought this looked pretty interesting.

Record-Breaking Phoenix Galaxy Cluster: By the Numbers





Gallery: http://www.space.com/17125-phoenix-g...telescope.html

I think it's funny (and a little mind blowing) when they say it's producing stars at an unprecedented rate. What they should be saying is that it was producing stars....~1 billion years ago (they're 1027 megalight-years away).

mother of god

!

Harvard cracks DNA storage, crams 700 terabytes of data into a single gram
http://www.extremetech.com/extreme/1...-a-single-gram

http://io9.com/5830071/breakthrough-...into-your-skin

A team of engineers today announced a discovery that could change the world of electronics forever. Called an "epidermal electronic system" (EES), it's basically an electronic circuit mounted on your skin, designed to stretch, flex, and twist - and to take input from the movements of your body.

EES is a leap forward for wearable technologies, and has potential applications ranging from medical diagnostics to video game control and accelerated wound-healing. Engineers John Rogers and Todd Coleman, who worked on the discovery, tell io9 it's a huge step towards erasing the divide that separates machine and human.

HD Video of Curiosity landing

^ cool stuff.

It still amazes me how similar it looks to some of the terrain on Earth and how bright it is, so far away from the Sun.

There's an even better one where you literally can't tell the difference between earth & mars

Originally Posted by cowmoo32

That's awesome man.

Dude, ****ing science, man.

Just. **** yeah.

Science.

A robot has learned to recognize itself in the mirror.
http://www.bbc.com/news/technology-19354994

A robot named Nico could soon pass a landmark test - recognising itself in a mirror.

Such self-awareness would represent a step towards the ultimate goal of thinking robots.

Nico, developed by computer scientists at Yale University, will take the test in the coming months.

The ultimate aim is for Nico to use a mirror to interpret objects around it, in the same way as humans use a rear-view mirror to look for cars.

"It is a spatial reasoning task for the robot to understand that its arm is on it not on the other side of the mirror," Justin Hart, the PhD student leading the research told BBC News.

So far the robot has been programmed to recognise a reflection of its arm, but ultimately Mr Hart wants it to pass the "full mirror test".

The so-called mirror test was originally developed in 1970 and has become the classic test of self-awareness.

More usually performed on animals, the creature is given time to get used to the mirror and is then anesthetized and marked on the face with odourless, non-tactile dye.

The animal's reaction to their reflection is used as a gauge of their self-awareness, based on whether they inspect the mark on their own body, or react as if it does not appear on themselves.
Justin Hart and Nico Justin Hart is building the software that will help Nico recognise himself

To date, only a few non-human species pass these tests, including some primates, elephants and dolphins. Human babies are unable to pass the test until they are 18 months old.

Increasingly scientists have used similar tests to analyse self-awareness in robots but none have yet programmed a robot to fully recognise itself from appearance alone.

"This is based on appearance rather than motion. I'm trying to pass the full mirror test," said Mr Hart.

A study in 2007 saw a robot able to distinguish movements in a mirror by classifying pixels either as belonging to it or to others.

Later studies observed how a robot imitated tasks of other robots versus imitating itself in a mirror and most recently the Qbo robot was programmed to react to different images - responding to specific images of itself with the phrase: "This is you, Qbo."

Mr Hart, who is working on the project with his supervisor Brian Scassellati, will publish his findings in the spring.

"This is an important step but it is not the endgame of artificial intelligence, it is just a step along the way," he said.

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Researchers have created 'artifical' tissue with embedded wires, enabling them to monitor in real time how the tissue is behaving.
http://www.newscientist.com/article/...ectronics.html

They beat like real heart cells, but the rat cardiomyocytes in a dish at Harvard University are different in one crucial way. Snaking through them are wires and transistors that spy on each cell's electrical impulses. In future, the wires might control their behaviour too.

Versions of this souped-up, "cyborg" tissue have been created for neurons, muscle and blood vessels. They could be used to test drugsMovie Camera or as the basis for biological versions of existing implants such as pacemakers. If signals can also be sent to the cells, cyborg tissue could be used in prosthetics or to create tiny robots.

"It allows one to effectively blur the boundary between electronic, inorganic systems and organic, biological ones," says Charles Lieber, who leads the team behind the cyborg tissue.

Artificial tissue can already be grown on three-dimensional scaffolds made of biological materials that are not electrically active. And electrical components have been added to cultured tissue before, but not integrated into its structure, so they were only able to glean information from the surface.

Electrically inflamed

Lieber's team combined these strands of work to create electrically active scaffolds. They created 3D networks of conductive nanowires studded with silicon sensors. Crucially, the wires had to be flexible and extremely small, to avoid impeding the growth of tissue. The scaffold also contained traditional biological materials such as collagen.

The researchers were able to grow rat neurons, heart cells and muscle in these hybrid meshes. In the case of the heart cells, they started to contract just like normal cells, and the researchers used the network to read out the rate of the beats.

When they added a drug that stimulates heart cell contraction, they detected an increase in the rate, indicating the tissue was behaving like normal and that the network could sense such changes.

Lieber's team also managed to grow an entire blood vessel about 1.5 centimetres long from human cells, with wires snaking through it. By recording electrical signals from inside and outside the vessel- something that was never possible before- the team was able to detect electrical patterns that they say could give clues to inflammation, whether tissue has undergone changes that make it prone to tumour formation or suggest impending heart disease.

Commanding cells

"You could use these things to directly measure the effects of drugs in synthetically grown human tissue without ever having to test them in an actual human being," says Lieber's colleague Daniel Kohane. He also envisions tissue patches that could be added to the surface of a heart, say, to monitor for problems.

Vladimir Parpura, a neurobiologist at the University of Alabama, Birmingham, who was not involved in the study, suggests using the tissue to build tiny, biomimetic robots or implants that repair damaged tissue via electronic pulses.

So far, though, the researchers have only used the electrical scaffolds to record signals- they have yet to feed commands to cells. So Lieber's next step is to add components to the nanoscaffold that could "talk" to neurons. He says the goal is to "wire up tissue and communicate with it in the same way a biological system does".

^^ while it's true that "self awareness" is in fact a well recognized but elusive landmark in Artificial Intelligence, recognizing an image (self or not) is not it.

Just because a particular image was coded into the robot as "self" has no technical significance.
Would it still pass the test if I went over there completely unannounced and put a mask (face and body) on that robot?

Originally Posted by Master Po

^^ while it's true that "self awareness" is in fact a well recognized but elusive landmark in Artificial Intelligence, recognizing an image (self or not) is not it.

Just because a particular image was coded into the robot as "self" has no technical significance.
Would it still pass the test if I went over there completely unannounced and put a mask (face and body) on that robot?

The headline is misleading. It isn't recognizing itself so much as recognizing its environment via the mirror. The fact that it 'knows' that the reflection is actually the world around it is what's important.

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Gravitational waves confirmed with optical telescope and timing white dwarfs
http://www.bbc.co.uk/news/science-environment-19408363

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IBM is spending $16 billion to put Watson in cell phones
http://www.kurzweilai.net/ibm-creati...ion-sales-push

Dunno if you guys know about Coursera, but I just signed up for a Machine Learning course there. Awesome site if you're bored and looking to learn something new, or pick up a new skill!

Never heard of it before but I'll be signing up for a class. I have too much free time, so this is perfect.