I found this awesome image at Absolute China Tours.
These findings, along with the newfound realization that dolphins have names for each other, offer further evidence for why, as some scientists argue, they should be considered “non-human persons,” in the spirit of the Declaration of Rights for Cetaceans, drafted by a group in Helsinski, Finland.
It also makes one wonder, what do many captive dolphins think about having names like “Flipper” given to them — what if we called them by their names instead and attempted to learn their forms of communication?
The Universe normally does an overview of ‘space news’ each month. But after the events of last week, we thought it would be a good idea to re-cap!
This is a selection of breaking news stories, all covered by The Universe, from February 11-17, 2013.
Meteor explodes over Russia – Image: AP (Nasha Gazeta Newspaper http://www.ng.kz/AP)
More Information: http://www.facebook.com/photo.phpfbid=475602839171560&set=a.433415610056950.106382.334816523250193&type=1&theater
2012 DA14 Flyby – Image: Dave Herald, Murrumbateman, Australia
More Information: http://www.facebook.com/photo.phpfbid=475124325886078&set=a.433415610056950.106382.334816523250193&type=1&relevant_count=1
Landsat Data Continuity Mission Launch –
Image: United Launch Alliance
More Information: http://www.facebook.com/photo.phpfbid=473579899373854&set=a.371203752944803.89148.334816523250193&type=1&relevant_count=1
Hubble Images Interacting Galaxies:
Image: ESA/Hubble & NASA
More Information: http://www.facebook.com/photo.phpfbid=476314879100356&set=a.455520841179760.110988.334816523250193&type=1&relevant_count=1
Image: Peter Ward, Barden Ridge Observatory
Gold nugget forming bacteria: http://bit.ly/14C1QIK
Bionic eye: http://bit.ly/WTitKo
Sea urchins: http://bit.ly/WbLZNl
Mammal ancestor: http://bbc.in/YZKkie
Stem cells: http://bit.ly/Y3s94C
Earth like planets: http://hvrd.me/12iA29h
via I fucking love science .
IT’S becoming clear that we can grow all the food we need, and profitably, with far fewer chemicals. And I’m not talking about imposing some utopian vision of small organic farms on the world. Conventional agriculture can shed much of its chemical use — if it wants to.
This was hammered home once again in what may be the most important agricultural study this year, although it has been largely ignored by the media, two of the leading science journals and even one of the study’s sponsors, the often hapless Department of Agriculture.
The study was done on land owned by Iowa State University called the Marsden Farm. On 22 acres of it, beginning in 2003, researchers set up three plots: one replicated the typical Midwestern cycle of planting corn one year and then soybeans the next, along with its routine mix of chemicals. On another, they planted a three-year cycle that included oats; the third plot added a four-year cycle and alfalfa. The longer rotations also integrated the raising of livestock, whose manure was used as fertilizer.
The results were stunning: The longer rotations produced better yields of both corn and soy, reduced the need for nitrogen fertilizer and herbicides by up to 88 percent, reduced the amounts of toxins in groundwater 200-fold and didn’t reduce profits by a single cent.
In short, there was only upside — and no downside at all — associated with the longer rotations. There was an increase in labor costs, but remember that profits were stable. So this is a matter of paying people for their knowledge and smart work instead of paying chemical companies for poisons.
And though critics of this path can be predictably counted on to say it’s moving backward, the increased yields, markedly decreased input of chemicals, reduced energy costs and stable profits tell another story, one of serious progress.
About Orbital Objects
The skies above Earth are teeming with manmade objects large and small. The U.S. Space Surveillance Network uses radar to track more than 13,000 such items that are larger than four inches (ten centimeters). This celestial clutter includes everything from the International Space Station (ISS) and the Hubble Space Telescope to defunct satellites, rocket stages, or nuts and bolts left behind by astronauts. And there are millions of smaller, harder-to-track objects such as flecks of paint and bits of plastic.
Gravitational pull will ensure that anything we’ve ever put in orbit will eventually make its way back to Earth. And though thus far no one has ever been killed by reentering space debris, NASA estimates on average one piece returns to Earth each day.
NASA and other national space agencies have identified orbital debris as a serious problem and are currently devising plans to mitigate existing space junk and curb future debris.
- Let’s Destroy Space Junk! By Putting Tons of Metal Dust into Orbit? (blogs.discovermagazine.com)
- Simulations Will Help Keep Track of Remote Space Junk (wired.com)
- Space Junk: Ideas for Cleaning up Earth Orbit (universetoday.com)
- Space Junk Hazards Force International Response (space.com)