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Archive for the ‘Science’ Category

This is a rather amazing video,

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The seismometer I set up seems to be working. I found out this morning that a big earthquake occurred in Japan overnight so I immediately checked the seismometer this morning to see if it could be detected all the way in Pisgah National Forest, North Carolina. And… yes it was detected.

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I won’t go into any experience I may or may not have had with any type of polygraph but the National Science Association said this in a 2003 report,

The accuracy of the polygraph has been contested almost since the introduction of the device. In 2003, the National Academy of Sciences (NAS) issued a report entitled “The Polygraph and Lie Detection”. The NAS found that the majority of polygraph research was of low quality. After culling through the numerous studies of the accuracy of polygraph detection the NAS identified 57 that had “sufficient scientific rigor”. These studies concluded that a polygraph
test regarding a specific incident can discern the truth at “a level
greater than chance, yet short of perfection”. The report also
concluded that this level of accuracy was probably overstated and the
levels of accuracy shown in these studies “are almost certainly higher
than actual polygraph accuracy of specific-incident testing in the field.” [1]

When polygraphs
are used as a screening tool (in national security matters and for law
enforcement agencies for example) the level of accuracy drops to such a
level that “Its accuracy in distinguishing actual or potential security
violators from innocent test takers is insufficient to justify reliance
on its use in employee security screening in federal agencies.” In
fact, the NAS extrapolated that 10,000 polygraph
tests searching for spies would incorrectly classify 99.5% of
“deceptive” results (those telling the truth yet incorrectly deemed to
be deceitful), and incorrectly classify 20% of deceitful subjects. The
NAS did conclude that the polygraph “…may have some utility” [2] and that there is “little basis for the expectation that a polygraph test could have extremely high accuracy.”[3]

The NAS conclusions were the same as those in the earlier United States Congress Office of Technology Assessment report “Scientific Validity of Polygraph Testing: A Research Review and Evaluation”.[4]

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Green Tea Helps Weight Loss

The Uncommon Body is reporting that green tea can greatly help in the process of losing weight by increasing the body’s metabolism. Just drinking the tea regularly you can lose 8 extra pounds a year. Here is why,

  1. Green tea slows down the absorption of fats and regulates
    glucose. The same substance, cathechin polyphenol, restrains the
    transition of glucose into fats. By doing that, experts believe that
    green tea is an effective glucose regulator. It effectively prevents
    insulin spikes and slows the rise of blood sugar after every meal.
    Insulin, as specialists agreed upon, promotes the storage of fats as it
    deals with the body’s blood sugar.
  2. Green tea has the ability to
    reduce appetite. Because green teas have regulating effects on the
    blood sugar, people who drink it are observed to eat food as much as 60
    percent lesser than usual. This particular hypothesis was proven when
    green tea was injected into laboratory rats for experimentation.
    Researchers believe that it has the same effects on humans.
  3. Green
    tea is a good alternative to coffee. If you drink tea instead of coffee
    in the morning or throughout the day, your body gets fewer calories in
    the long run. The sugar and the cream included in your daily
    cappuccinos add inches and bulges to the waistline. But with green tea,
    instead of accumulating fats, you are actually reducing its build up.
  4. Green
    tea affects the bodily systems positively. A parallel research about
    green tea brings forward its overall effects in the body. The systems
    benefiting from it include cardiovascular, respiratory, circulatory,
    nervous, urogenital, immune, lymphatic, and musculoskelatal systems.
    With this, green tea shows to have a very broad effect on the body.
    Only a few types of food can boast of this characteristic.

Perhaps that is why Coke is working a new energy/weight loss drink called “Enviga”. Coca Cola bottling is claiming that if you drink 3 servings of Enviga over the course of a day you will burn about 60 to 100 extra calories.

I prefer regular green tea… you can bet these things won’t be cheap, probably $4 each

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After a long day doing schoolwork and student government related work on campus or in my room, I always seem to reach for a cup of tea as soon as I’m ready to relax. I was beginning to think this tea grabbing was out of habit or caffeine addiction, but  a recent study provides significant evidence that tea lowers the stress causing hormone cortisol.

Published in the international journal Psychopharmacology, the
study found that people who drank tea were able to de-stress more
quickly than those who drank a tea substitute. Following a stressful
event, tea-drinkers also had lower levels of cortisol in their blood
when compared with a control group who drank placebo tea.

I guess spending $40 at World Market on tea the other day was worth it

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In the age old battle of Tea vs Water, Tea might have just made a knockout punch, recent study results indicate that tea is better for overall health than water. Tea does not dehydrate like you may have been told. Three or more cups of tea a day will help the onset of heart disease and cancer. Also, it can strengthen your bones and protect your teeth from decay.

Basically, water rehydrates you, but tea provides rehydration and antioxidants.

Now I don’t feel so bad about drinking multiple cups of tea every day.

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Grant Morrison (one of my favorite comics writers) speaks about his encounter with aliens and how his comics are a medium through which he can explain his experience with readers

Mr. Morrison explains that we (as we know we are) are just manifestations of our five dimensional selves that are observed as we intersect the three dimensions that we think we live in. Perhaps its true, perhaps its just words spoken by a looney. But it sure is interesting.
       

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