sharingknowledge

Forget Mother Nature: This is a world of our making

Humans have transformed Earth beyond recovery – but rather than look back in despair we should look ahead to what we can achieve

We're searching for interesting signals coming from the Kepler Field. Will we find life on another planet?

The Search SETILive is taking the Search for Extraterrestrial Intelligence (SETI) directly to you by presenting radio frequency signals LIVE from the SETI Institute's Allen Telescope Array (ATA) while it's pointed at stars that, based on Kepler exoplanet discoveries, have the best chances of being home to an alien civilization. We'll also be putting you "in the loop" where if enough of you see a potential extraterrestrial (ET) signal in the same data, then within minutes, the ATA will be interrupted and sent back to take a second look. The data you see will be from frequencies where human-made Radio Frequency Interference (RFI) crowds them and we believe the human eye will have a better chance than SETI's computer algorithms to find ET signals there.

Sign in to earn badges Sign In

This is the home page for the Sky Map open source project. You can find the code here and participate in all of the development activities.

Sky Map UsersFollow us on Google+ and Facebook.

Five things you may want to know about buddhify 1. buddhify has been designed as a solution to the problem that there is a lot of interest in mindfulness-based meditation nowadays but most of the ways its taught are still stuck in the 20th century 2. buddhify is made by a team who are both properly experienced in traditional meditation and properly knowledgable about technology, innovation and understanding what people really want 3. buddhify aims to start a new wave of authentic modern translations of classic contemplative traditions, so if you don't like it please do make something better. Really 4. Over and above the many good and great meditation teachers who have influenced the app, the perhaps more surprising inspirations behind buddhify are Ira Glass of This American Life, Jad Abumrad of Radiolab, the late Steve Jobs and the emerging culture of urban and pro-social gaming represented by people like Hide&Seek and Jane McGonigal 5. buddhify is called buddhify because a) it's a cute name and b) it's a grateful nod to the roots of mindfulness-based meditation in Buddhism. However the app is for anyone with an interest in developing their mental wellbeing and is not interesting in pushing any particular belief system, religious or otherwise

Meditation Can Improve Your Memory, Focus, and Productivity at Work

If you haven't given meditation a try yet, despite the many advantages we've already seen (including chronic pain and stress relief, reducing information overload, and building a better brain), here's one more argument for trying the practice: meditation may help you get more done at work.

A recent study by University of Washington researchers (PDF) found that meditation training helped workers concentrate better, remember more of their work details, and stay energized and experience less negative moods.

The Science Behind Why Power Naps Help You Stay Productive and Creative

Even if you don't work in a job where napping is acceptable, there's a very clear reason why the best naps are the ones that are usually around the half-hour mark.

The video above, from ASAP Science (worth subscribing to on YouTube if you dig videos like this) explains how sleep cycles work, and how power naps—or those naps that do the most to boost cognitive function during the day—take advantage of the first two phases of your sleep cycle: stage one, where you're probably "dozing," or feel relaxed but if someone woke you you probably wouldn't even notice you'd been asleep, and stage two, where your brain starts to consolidate memories, organize its biological bookshelves, and shuts the brain off from external, non-dangerous stimuli. If you're the type who says "It takes me 10 minutes just to fall asleep," that 10 minutes is probably leading you into stage one—after that, you're in stage two. The trouble comes in stage three, or the part where we're sleeping deeply, and waking is difficult. That's when you start to feel groggy, and hate the idea of getting up. If you hate mornings, you're probably waking up during this phase. So the key to getting all of the benefits of naps without the drawbacks is to sleep only for about a half-hour, or the time it takes your brain to go through the first two stages, but not enter the third.

Remember More Without Trying Too Hard

Memory is a tricky beast. You might sit and study for hours on end, but for some reason it never seems to stick with you. However, as Time points out, implicit learning relies on three factors that are easy to control.

You'll need to do three things when studying or learning a new skill: Give your mind a ton of material: This might seem obvious, but immersing yourself completely in what you're trying to learn is the first step to actually learning it. You don't have to actively try to memorize things, just expose yourself to the skill or material as much as possible. Practice: We tend to stop practicing a skill or stop studying when we think "we've got it." However, well after we learn something we still continue to refine that skill. Sleep: It's thought that sleep is essential to learning and remembering. Some studies have suggested that the brain identifies patterns in our memories and consolidates them to make them permanent when we're sleeping. In essence, a good night of rest might be better than an all-night study-fest.

Caffeine: A User’s Guide to Getting Optimally Wired

Caffeine is the most widely used stimulant in the world, but few use it to maximal advantage. Get optimally wired with these tips.

1) Consume in small, frequent amounts. Between 20-200mg per hour may be an optimal dose for cognitive function. Caffeine crosses the blood-brain barrier quickly (owing to its lipid solubility) although it can take up to 45 minutes for full ingestion through the gastro-intestinal tract. Under normal conditions, this remains stable for around 1 hour before gradually clearing in the following 3-4 hours (depending on a variety of factors). A landmark 2004 study showed that small hourly doses of caffeine (.3mg per kg of body weight [approx 20 mg per hour; thanks digg!]) can support extended wakefulness, potentially by counteracting the homeostatic sleep pressure, which builds slowly across the day and acts preferentially on the prefrontal cortex (an area of the brain thought responsible for executive and “higher” cognitive functions).

Brew the Best Possible Coffee Without Breaking the Bank

Consider yourself forewarned however, once you begin brewing better coffee it becomes increasingly difficult to go back to enjoying crappy coffee.

Nearly all the coffee in the world comes from two types of coffee plants: Arabica and Robusta. Arabica has roughly half the amount of caffeine and a more mellow taste. Robusta has more caffeine and higher acidic content which creates a significantly more bitter flavor.

affeine is one seriously misunderstood substance. It's not a simple upper, and it works differently on different people with different tolerances—even in different menstrual cycles. But you can make it work better for you.

Luckily, one intrepid reader and writer has actually done that reading, and weighed that evidence, and put together a highly readable treatise on the subject. Buzz: The Science and Lore of Alcohol and Caffeine, by Stephen R. Braun, is well worth the short 224-page read. It was released in 1997, but remains the most accessible treatise on what is and isn't understood about what caffeine and alcohol do to the brain.

Caffeine Doesn't Actually Get You Wired Right off the bat, it's worth stating again: the human brain, and caffeine, are nowhere near totally understood and easily explained by modern science. That said, there is a consensus on how a compound found all over nature, caffeine, affects the mind.

Linux deserves some consideration when choosing an operating system for your digital recording studio. But even the worthiest operating system is useless without useable apps. Fortunately, there is a long list of excellent music applications available for Linux. If you choose one of the Linux distributions recommended last week, many of them come preinstalled.

You Could Be Better at Remembering Names, If Only You Gave a Shit

ome people are more tuned in to personal relationships—like politicians or teachers—and they're more apt to be good at remembering people's names because they're have an interest in remembering them. But for the rest of us, we may just simply not be that engaged when we meet someone.

Boost Your Creativity by Improving Your Working Memory

In one study, the researchers actually explored the creativity of improvisations played by cellists with no formal training in improvisation. At the start of the study, they measured everyone's working memory capacity. Then, participants were given the chance to perform three 3-minute improvisations based on a theme (such as Winter or Spring). Each improvisation had a different theme. The improvisations were recorded in a studio, and then professional musicians rated them for their originality and creativity. The creativity of the first improvisations people performed was about the same regardless of their working memory capacity. However, the people with high working memory capacity played better improvisations as they progressed through the study, while those with low working memory capacity played worse improvisations. So, by the end of the study, the people with higher working memory capacity were playing significantly more creative improvisations than those with low working memory capacity.

The planisphere overlays the night sky in Google Earth with a grid showing you what you can see right now, including the positions of the Sun, Moon and planets (and Pluto too).

he planisphere overlays the night sky in Google Earth with a grid showing you what you can see right now, including the positions of the Sun, Moon and planets (and Pluto too).

A new way of comparing the color and intensity changes of light reflected off of Earth's surface to the flickers from exoplanets may help reveal the presence of oceans, continents and ? possibly ? life on alien worlds. Researchers came up with a color scheme for how our uniquely life-filled, ocean-soaked planet would appear to observers tens of light-years away.

By comparing the changes in observed hues of an alien planet ?as it rotates to this distinct Earthly color palette, "we can infer the surface composition of the [exo]planet," said Yuka Fujii, a doctoral student at the University of Tokyo and lead author of a paper published in the May 4 issue of the Astrophysical Journal.

Zoom from the edge of the universe to the quantum foam of spacetime and learn the scale of things along the way! Press left or right or drag the scroll bar to zoom in and out. Press down to toggle quality.

Minnesota Studies in Philosophy of Science is the world's longest running and best known series devoted exclusively to the philosophy of science. Edited by members of the Minnesota Center for the Philosophy of Science (MCPS) since 1956, the series brings together original articles by leading workers in the philosophy of science. The ninteen existing volumes cover topics ranging from the philosophy of psychology and the structure of space and time to the nature of scientific theories and scientific explanation. Minnesota volumes typically grow out of intensive workshops focused on specific topics. The participants are invited to contribute because they represent the leading viewpoints of the time. The volumes thus have a coherent focus enhanced by the authors' considerable face to face interaction before their papers are revised for publication.

"This is a book about science, technology, and love," writes Sherry Turkle. In it, we learn how a love for science can start with a love for an object—a microscope, a modem, a mud pie, a pair of dice, a fishing rod. Objects fire imagination and set young people on a path to a career in science. In this collection, distinguished scientists, engineers, and designers as well as twenty-five years of MIT students describe how objects encountered in childhood became part of the fabric of their scientific selves. In two major essays that frame the collection, Turkle tells a story of inspiration and connection through objects that is often neglected in standard science education and in our preoccupation with the virtual.