Ancient penguin DNA raises doubts about accuracy of genetic dating techniques

Ancient penguin DNA raises doubts about accuracy of genetic dating techniques

Biology / Evolution

created 8 hours ago | popularity 5 / 5 (11) | comments 2

Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been ...


New 'finFETS' promising for smaller transistors, more powerful chips

New 'finFETs' promising for smaller transistors, more powerful chips

Technology / Semiconductors

created 7 hours ago | popularity 4.9 / 5 (7) | comments 2

(PhysOrg.com) -- Purdue University researchers are making progress in developing a new type of transistor that uses a finlike structure instead of the conventional flat design, possibly enabling engineers ...


Earth

Atomic Particles Help Solve Planetary Puzzle

Space & Earth / Earth Sciences

created 4 hours ago | popularity 4.6 / 5 (5) | comments 0

(PhysOrg.com) -- A University of Arkansas professor and his colleagues have shown that the Earth's mantle contains the same isotopic signatures from magnesium as meteorites do, suggesting that the planet formed ...


New search technique for images and videos has broad applications

New search technique for images and videos has broad applications

Technology / Computer Sciences

created 5 hours ago | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Engineers at the University of California, Santa Cruz, have developed a powerful new approach to a fundamental problem in computer vision: how to program a computer to recognize or categorize ...


Hydrogen milestone moves energy independence one step forward

Hydrogen milestone moves energy independence one step forward

Technology / Energy

created 5 hours ago | popularity 3.3 / 5 (4) | comments 1

(PhysOrg.com) -- Big things often come in small packages. That's certainly the case with the potential created by recent successes in hydrogen research at Idaho National Laboratory.


Striped skunk

Skunk's Strategy Not Just Black and White

Biology / Plants & Animals

created 5 hours ago | popularity 2 / 5 (1) | comments 4

Predators with experience of skunks avoid them both because of their black-and-white coloration and their distinctive body shape, according to UC Davis wildlife researcher Jennifer Hunter. The study was published ...


New fossil plant discovery links Patagonia to New Guinea in a warmer past

New fossil plant discovery links Patagonia to New Guinea in a warmer past

Other Sciences / Archaeology & Fossils

created 4 hours ago | popularity not rated yet | comments 0

Fossil plants are windows to the past, providing us with clues as to what our planet looked like millions of years ago. Not only do fossils tell us which species were present before human-recorded history, ...


California's Ancient Kelp Forest

Biology / Ecology

created 4 hours ago | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...


The Link Between Birdsong And Human Language

The Link Between Birdsong And Human Language

Medicine & Health / Neuroscience

created 5 hours ago | popularity 5 / 5 (4) | comments 0

Scientists studying how Bengalese finches use sets of syllables to communicate are a step closer to understanding how humans develop and use vocabulary. After studying the neural networks in finch brains, ...


Scientists develop DNA origami nanoscale breadboards for carbon nanotube circuits

Scientists develop DNA origami nanoscale breadboards for carbon nanotube circuits

Nanotechnology / Nanomaterials

created 11 hours ago | popularity 5 / 5 (5) | comments 0

In work that someday may lead to the development of novel types of nanoscale electronic devices, an interdisciplinary team of researchers at the California Institute of Technology has combined DNA's talent ...


Argonne 'homegrown' hybrid solar cell aims for low-cost power

Argonne 'homegrown' hybrid solar cell aims for low-cost power

Nanotechnology / Nanomaterials

created 6 hours ago | popularity 3.8 / 5 (4) | comments 0

(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...


Controversial new climate change results

Controversial new climate change results

Space & Earth / Environment

created 14 hours ago | popularity 4.4 / 5 (14) | comments 19

(PhysOrg.com) -- New data show that the balance between the airborne and the absorbed fraction of CO2 has stayed approximately constant since 1850, despite emissions of CO2 having risen from about 2 billion ...


The Stars My Destination

The Stars My Destination

Space & Earth / Space Exploration

created 5 hours ago | popularity 5 / 5 (7) | comments 0

The Voyager spacecraft are now in the outermost layer of the heliosphere, traveling toward interstellar space - the first man-made spacecraft to travel such a vast distance from Earth.


Research helps overcome barrier for organic electronics

Research helps overcome barrier for organic electronics

Nanotechnology / Nanomaterials

created 2 hours ago | popularity 4.7 / 5 (3) | comments 0

(PhysOrg.com) -- Electronic devices can't work well unless all of the transistors, or switches, within them allow electrical current to flow easily when they are turned on. A team of engineers has determined ...


carbon fiber

Ultra-Long Carbon Nanotubes Could Serve as Future Transmission Lines

Nanotechnology / Nanomaterials

created 10 hours ago | popularity 4.9 / 5 (15) | comments 12

(PhysOrg.com) -- When it comes to carbon nanotubes, the majority of research so far has focused on small-scale applications. But now, a team of researchers from Rice University has created carbon nanotubes ...