January 7, 2013

1 Comment

Leaf Growth & Tree Height Limited By Physics

The leaves of angiosperm trees vary wildly in size, but the range of size narrows among taller trees. Credit: K. Jensen/Harvard University and M. Zwieniecki/UC Davis

New research indicates that leaf growth may not be as complicated as it seems. When compared species to species, shorter trees exhibit a greater variety of leaf sizes than taller ones, with the tallest trees all having leaves that measure 10 to 20 centimeters in length. The scientists published their findings in the journal Physical […]

Continue reading...

January 7, 2013

0 Comments

Nopili Goby, The Waterfall Climbing Fish

Nopili Goby, The Waterfall-Climbing Fish

When the Nopili goby (Sicyopterus stimpsoni) moves from salt water to fresh water, over the course of two days, the fish’s mouth migrates from the tip of its head to its chin. This lets it adapt to its new environment. The scientists published their findings in the journal PLoS ONE¹. The adaptations allow it to […]

Continue reading...

January 7, 2013

0 Comments

Diets High in Fructose Lead to Overeating

Credit: Shuttershock

Scientists have shown, using imaging tests, that fructose can trigger brain changes that lead to overeating. They found that after drinking a fructose beverage, the brain doesn’t register the fullness feeling as it does when simple glucose is consumed. Scientists think that even though this is a small study and that it doesn’t prove that […]

Continue reading...

January 7, 2013

0 Comments

Volunteers Discover 15 New Planet Candidates in Habitable Zones

15 new planet candidates orbiting in the habitable zones of other stars

By looking for a dip in the brightness as planets pass in front of their parent stars, volunteers have discovered 15 new planet candidates orbiting in the habitable zones of other stars. Added to the 19 similar planets already discovered in habitable zones, where the temperature is neither too hot nor too cold for liquid […]

Continue reading...

January 7, 2013

0 Comments

Curiosity Returns Images of “Snake River” & Explores “Yellowknife Bay”

Snake River

Over the holidays, NASA’s Curiosity rover returned new images of “Snake River” and is now in a shallow depression called “Yellowknife Bay.” This is the 147th day of the mission and Curiosity has driven 702 meters on the Martian surface. Pasadena, California – After imaging during the holidays, NASA’s Mars rover Curiosity resumed driving Jan. […]

Continue reading...

January 7, 2013

0 Comments

DNA in Flesh-Eating Flies’ Guts Reveal Biodiversity

Credit: Saguaro juniper

When blowflies and flesh flies settle on dead animals, they aren’t just feasting on the carrion, they are in fact sampling their DNA. Scientists have demonstrated that this DNA persists long enough to be sequenced, allowing them to gain a quick and cost-effective snapshot of mammal diversity in otherwise inaccessible rainforest environments. The scientists published […]

Continue reading...

January 7, 2013

0 Comments

Hubble Views Galaxies NGC 5011B and NGC 5011C

Don’t trust your eyes

A new Hubble image shows galaxy NGC 5011C, which astronomers now believe is a dwarf galaxy and not a member of the distant Centaurus Cluster as was previously thought, and spiral galaxy NGC 5011B. The Universe loves to fool our eyes, giving the impression that celestial objects are located at the same distance from Earth. […]

Continue reading...

January 5, 2013

0 Comments

The Inherent Unpredictability of El Nino Events

Corals collected on islands in the central Pacific reveal that the strength and frequency of the climate phenomenon commonly known as El Niño is highly unpredictable.
Credit: Gary Meek/Georgia Tech

El Niño events are not as predictable as previously thought. According to new analyses of climate records locked within ancient corals, the frequency and strength of the ocean-warming phenomenon were more variable during the last century than, on average, during the past 7,000 years. The scientists published their findings in the journal Science¹. The finding […]

Continue reading...

January 5, 2013

1 Comment

Correlator Supercomputer Designed to Run ALMA Radio Telescope Array

Chile's Chajnantor plateau, some 5 kilometers above sea level, is the home of a new supercomputer specially designed to run the ALMA radio telescope array (dishes at lower right). Credit: ALMA (ESO/NAOJ/NRAO), Carlos Padilla

The Atacama Large Millimeter/Submillimeter Array (ALMA) Correlator, a large supercomputer that was built in Chile to help radio astronomers, will be able to perform 17 quadrillion operations per second. It took 48 months to install it, 5,000 meters above sea level. The Correlator supercomputer was designed to run one of the world’s most complex ground […]

Continue reading...

January 5, 2013

3 Comments

Politics – The Single Most Important Factor in Limiting Global Warming

global-warming

A new analysis finds that swift action by politicians is the single most important factor in limiting global warming. The costs of delays outweigh any possible benefits of waiting for more scientific research into the mechanisms of climate change. The scientists published their findings in two studies in the journal Nature ¹ ². This contradicts […]

Continue reading...

January 4, 2013

1 Comment

Deepwater Horizon Disaster Payout Announced by US Justice Department

Transocean will help fund Gulf of Mexico science and restoration as part of its settlement of civil and criminal charges related to the 2010 Deepwater Horizon disaster. Credit: Wikimedia

A new cash settlement will be given to the Gulf of Mexico science and restoration project, due to the federal charges related to the 2010 Deepwater Horizon oil spill. The company that operated the drilling rig for BP, Transocean Deepwater, has agreed to pay $1.4 billion in civil and criminal fines and penalties for the […]

Continue reading...

January 4, 2013

0 Comments

People Underestimate How Much They’ll Change in the Future

A new study suggests that people’s tastes change more than they think they will. Credit: Joshua Lott/Reuters

According to a new study, many people underestimate how much they will change in the future. The scientists published their findings in the journal Science¹. Many of the choices that people make rest on assumptions. The psychologists devised a series of online experiments, in which more than 19,000 people participated. Adults between 18 and 68 […]

Continue reading...