Skip to main content

Home/ science/ Group items tagged not

Rss Feed Group items tagged

Skeptical Debunker

'Hella' Proposed as Official Big Number - Yahoo! News - 0 views

  • To become official, "hella" would have to jump through quite a few bureaucratic hoops. It would have to pass through the Consultative Committee for Units (CCU), one of 10 advisory committees of the International Committee for Weights and Measures (CIPM). If the CCU recommends it the CIPM, that board must then decide whether to advance the cause to the General Conference on Weights and Measures (CGPM), the official authority that can make changes to the SI system. That international organization, based in France, includes members from 81 countries. "I think that for a number of reasons it's a long shot," said Ben Stein, a spokesperson for the National Institute of Standards and Technology, the U.S. organization that handles measurements. "The types of things they would consider are is it needed, does it add or reduce confusion, are the names consistent with other names associated with the prefixes?" Sendek argues that the name would honor the scientific contributions of Northern Californians, who have famously popularized the phrase "hella" to mean "a whole lot."
  •  
    Soon the word "hella" may not be associated with California surfers as much as with scientists in lab coats. A physics student is petitioning to add "hella" to the International System of Units (SI) as the official designation of 10 to the 27th power, or a trillion trillions.
Walid Damouny

Freezing out breast cancer - 0 views

  •  
    "Interventional radiologists have opened the door to an encouraging potential future treatment for the nearly 200,000 women who are diagnosed with breast cancer in the United States each year: image-guided, multiprobe cryotherapy. In the first reported study, researchers were able to successfully freeze breast cancer in patients who refused surgery; the women did not have to undergo surgery after treatment to ensure that tumors had been killed, note researchers at the Society of Interventional Radiology's 35th Annual Scientific Meeting in Tampa, Fla."
Walid Damouny

Scientists discover first multicellular life that doesn't need oxygen - 1 views

  •  
    "Oxygen may not be the staple of modern complex life that scientists once thought. Until now, the only life forms known to live exclusively in anoxic conditions were viruses, bacteria and Archaea. But in a new study, scientists have discovered three new multicellular marine species that appear to have never lived in aerobic conditions, and never metabolized oxygen. "
thinkahol *

98.6 degrees Fahrenheit ideal temperature for keeping fungi away and food at bay - 0 views

  •  
    ScienceDaily (Dec. 22, 2010) - Two researchers at Albert Einstein College of Medicine of Yeshiva University have found that our 98.6° F (37° C) body temperature strikes a perfect balance: warm enough to ward off fungal infection but not so hot that we need to eat nonstop to maintain our metabolism.
thinkahol *

More breaks from sitting are good for waistlines and hearts - 0 views

  •  
    ScienceDaily (Jan. 13, 2011) - It is becoming well accepted that, as well as too little exercise, too much sitting is bad for people's health. Now a new study has found that it is not just the length of time people spend sitting down that can make a difference, but also the number of breaks that they take while sitting at their desk or on their sofa. Plenty of breaks, even if they are as little as one minute, seem to be good for people's hearts and their waistlines.
thinkahol *

Politics and eye movement: Liberals focus their attention on 'gaze cues' much different... - 0 views

  •  
    In a new study, researchers measured both liberals' and conservatives' reaction to "gaze cues" -- a person's tendency to shift attention in a direction consistent with another person's eye movements. Liberals responded strongly to the prompts, consistently moving their attention in the direction suggested to them by a face on a computer screen. Conservatives, on the other hand, did not
thinkahol *

Secondhand television exposure linked to eating disorders - 0 views

  •  
    ScienceDaily (Jan. 6, 2011) - For parents wanting to reduce the negative influence of TV on their children, the first step is normally to switch off the television set. But a new study suggests that might not be enough. It turns out indirect media exposure, i.e., having friends who watch a lot of TV, might be even more damaging to a teenager's body image.
Charles Daney

Some like it hot : Nature News - 0 views

  •  
    All of which could lend credence to the suggestion of biochemist Lawrence Henderson in 1913 that water is peculiarly favourable to the evolution of life. In the introduction to a 1958 edition of Henderson's book, Wald wrote 'we now believe that life… must arise inevitably wherever it can, given enough time.' But perhaps what it needs is not so much enough time, but the right amount of heat.
Charles Daney

New Subatomic Particle Could Help Explain the Mystery of Dark Matter: Scientific American - 0 views

  •  
    New experiments have revealed tantalizing evidence that sterile neutrinos are not only real but common. Some of them could even be the stuff of the mysterious dark matter astronomers have puzzled over for decades.
thinkahol *

How much information is there in the world? - 3 views

  •  
    ScienceDaily (Feb. 11, 2011) - Think you're overloaded with information? Not even close.
thinkahol *

'Metaknowledge' essential for leveraging scientific research | KurzweilAI - 2 views

  •  
    The Internet has become not only a tool for disseminating knowledge through scientific publications, but it also has the potential to shape scientific research through expanding the field of metaknowledge - the study of knowledge itself, according to an article published by University of Chicago researchers in the journal Science.
Ilmar Tehnas

Warming North Atlantic water tied to heating Arctic, according to new study - 0 views

  •  
    Paleontological evidence of colder temperatures in the past. Not a huge increase but significant.
thinkahol *

Binge eaters' dopamine levels spike at sight, smell of food - 1 views

  •  
    ScienceDaily (Feb. 28, 2011) - A brain imaging study at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory reveals a subtle difference between ordinary obese subjects and those who compulsively overeat, or binge: In binge eaters but not ordinary obese subjects, the mere sight or smell of favorite foods triggers a spike in dopamine -- a brain chemical linked to reward and motivation.
Ilmar Tehnas

Tumours could be the ancestors of animals - health - 11 March 2011 - New Scientist - 3 views

  •  
    Cells within a tumour potentially not acting independantly, but more like an integrated organism.
thinkahol *

Children learn language in moments of insight, not gradually through repeated exposure,... - 2 views

  •  
    ScienceDaily (May 23, 2011) - New research by a team of University of Pennsylvania psychologists is helping to overturn the dominant theory of how children learn their first words, suggesting that it occurs more in moments of insight than gradually through repeated exposure.
thinkahol *

Nuclear radiation affects sex of babies, study suggests - 0 views

  •  
    ScienceDaily (May 27, 2011) - Ionizing radiation is not without danger to human populations. Indeed, exposure to nuclear radiation leads to an increase in male births relative to female births, according to a new study by Hagen Scherb and Kristina Voigt from the Helmholtz Zentrum München.
Aliyah Rush

Instant Fix Slow Computer Solutions - 1 views

I bought a brand new PC with good specifications just last month. But only three weeks of use, I noticed that my PC froze and slowed down a bit. For the next three days, it continued to slow down. ...

fix slow computer

started by Aliyah Rush on 07 Jun 11 no follow-up yet
thinkahol *

Graphene may reveal the grain of space-time - physics-math - 13 May 2011 - New Scientist - 1 views

  •  
    COULD the structure of space and time be sketched out inside a cousin of plain old pencil lead? The atomic grid of graphene may mimic a lattice underlying reality, two physicists have claimed, an idea that could explain the curious spin of the electron. Graphene is an atom-thick layer of carbon in a hexagonal formation. Depending on its position in this grid, an electron can adopt either of two quantum states - a property called pseudospin which is mathematically akin to the intrinsic spin of an electron. Most physicists do not think it is true spin, but Chris Regan at the University of California, Los Angeles, disagrees. He cites work with carbon nanotubes (rolled up sheets of graphene) in the late 1990s, in which electrons were found to be reluctant to bounce back off these obstacles. Regan and his colleague Matthew Mecklenburg say this can be explained if a tricky change in spin is required to reverse direction. Their quantum model of graphene backs that up. The spin arises from the way electrons hop between atoms in graphene's lattice, says Regan. So how about the electron's intrinsic spin? It cannot be a rotation in the ordinary sense, as electrons are point particles with no radius and no innards. Instead, like pseudospin, it might come from a lattice pattern in space-time itself, says Regan. This echoes some attempts to unify quantum mechanics with gravity in which space-time is built out of tiny pieces or fundamental networks (Physical Review Letters, vol 106, p 116803). Sergei Sharapov of the National Academy of Sciences of Ukraine in Kiev says that the work provides an interesting angle on how electrons and other particles acquire spin, but he is doubtful how far the analogy can be pushed. Regan admits that moving from the flatland world of graphene to higher-dimensional space is tricky. "It will be interesting to see if there are other lattices that give emergent spin," he says.
« First ‹ Previous 141 - 160 of 293 Next › Last »
Showing 20 items per page