Showing posts with label Nature. Show all posts
Showing posts with label Nature. Show all posts
Wednesday, October 2, 2013
The Lightning
Saturday, September 28, 2013
Saturday, September 21, 2013
How long to nap ?
The sleep experts say a 10-20-minute power nap gives you the best "Brain
Reboot" but depending on what you want the nap to do for you
For a quick boost of alertness, experts say a 10-20-minute power nap is
adequate for getting back to work in a pinch.
For cognitive memory processing, however, a 60-minute nap may do more
good, Dr. Mednick said. Including slow-wave sleep helps with remembering
facts, places and faces. The downside: some grogginess upon waking.
Finally, the 90-minute nap will likely involve a full cycle of sleep,
which aids creativity and emotional and procedural memory, such as
learning how to ride a bike.
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Sunday, August 11, 2013
Saturday, August 10, 2013
Friday, August 9, 2013
All About Evolution
The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today. Unfortunately, evolution is often misunderstood, because it's mechanisms seem counter intuitive.
Tuesday, August 6, 2013
Beauty Tricks
BRIGHTEN UP WITH MINT
Using
mint as an ingredient in skincare products can increase mental
alertness for a morning pick-me-up and instantly brighten dull, tired
skin," says Renee Rouleau, esthetician and founder of Renee Rouleau Skin
Care, who adds that the invigorating herb helps to stimulate blood
circulation, bringing new nutrients to skin cells. - See more at:
http://www.shape.com/lifestyle/beauty-style/8-beauty-tricks-look-well-rested-even-if-youre-far-it#sthash.qDy49Sle.dpuf
Using
mint as an ingredient in skincare products can increase mental
alertness for a morning pick-me-up and instantly brighten dull, tired
skin," says Renee Rouleau, esthetician and founder of Renee Rouleau Skin
Care, who adds that the invigorating herb helps to stimulate blood
circulation, bringing new nutrients to skin cells. - See more at:
http://www.shape.com/lifestyle/beauty-style/8-beauty-tricks-look-well-rested-even-if-youre-far-it#sthash.qDy49Sle.dpuf
- using mint can increase mental alertness for morning pick-me-up and instantly brighten dull, tired skin. Beside, the invigorating herb helps to stimulate blood circulation, bringing new nutrients to skin cells.
CHILL OUT
- We all know someone who swears that placing cucumber slices on her eyes instantly eliminates puffiness. But there's no miraculous anti-puff ingredient in the veggie.
MASK IT
- Exfoliation brimgs oxygenated blood flow to the surface for an instant glow. Do it with a treatment that contains dull-skin dissolving fruit acids or alpha hydroxy acids (AHAs).
CURL UP
- When you are bleary-eyed, curling your lashes is a must. Lifted lashes give the appearence of bigger, more open eyes.
Brighten Up with Mint
Brighten Up with Mint
Brighten Up with MintBrighten Up with Mint
Brighten Up with MintBrighten Up with Mint
Brighten Up with MintBrighten Up with Mint
Thursday, August 1, 2013
5 NASA Inventions You Won't Believe
1. Nanoceramics Cure Cancer, Make Hair Shiny
While working as a NASA scientist specializing innanomaterials (which are 10,000 times smaller than a human hair), Dr. Dennis Morrison developed nanoceramics, which could be formed into tiny balloons called microcapsules. These little balloons could be filled with cancer-fighting drugs and injected into solid tumors.
Where, you're wondering, does space come into this process? In order to create the microscopic membrane around the liquid drugs, the microcapsules had to be formed in low-Earth orbit. Dr. Morrison's ceramic nanoparticles contained metals that would react when the patient was subjected to a magnetic field, like what's used in an MRI diagnostic machine. The capsules would melt, and the drugs would be released to fight the cancerous tumor.
It turns out that Dr. Morrison's ceramic-magnetic particles were good for more than fighting tumors -- they could also fight frizz. When incorporated into Farouk Systems's hairstyling iron and heated, the nanoparticles released ions that made hair smooth and shiny.
Saturday, July 20, 2013
Solat menyihatkan badan
Solat merupakan sunnah rasulullah yang paling utama dan wajib
dilaksanakan oleh setiap muslim. Solat merupakan rukun islam yang kedua dan
berdosa jika meninggalkan. Setiap pergerakan di dalam solat dapat membantu
menyihatkan tubuh badan jika ianya dilakukan dengan sempuna dan akan
memudaratkan jika sebalikkan. Ketika kita solat, ia membantu merehatkan minda
dan sekaligus membentuk aura positif dan menenangkan jiwa secara amnya.
Satu kajian yang dijalankan di Malaysia oleh Jabatan
Kejuruteraan Biomedikal Universiti Malaya mendapati setiap gerakan solat
mempunyai manfaat tersendiri yang mampu meningkatkan tahap kesihatan secara
menyeluruh. Berikut
adalah beberapa hasil kajian yang telah dilakukan berkaitan solat:
Saturday, April 6, 2013
Apa Akan Terjadi Jika Kita Bergerak Selaju Kelajuan Cahaya?
Apa Akan Terjadi Jika Kita Bergerak Selaju Kelajuan Cahaya?
Pada awal 1900-an, saintis berpegang teguh kepada pandangan Newtonian . Kemudian seorang ahli matematik dan fizik kelahiran Jerman bernama Albert Einstein datang dan menukar segala-galanya. Pada tahun 1905, Einstein menerbitkan teori kerelatifan khas, yang mengemukakan idea yang mengejutkan: Tiada pilihan bingkai rujukan. Segala-galanya, walaupun masa, adalah relatif. Dua prinsip penting disokong teorinya.
- Yang pertama menyatakan bahawa undang-undang fizik, sama dalam semua rujukan bingkai pegerakan.
- Yang kedua berkata bahawa kelajuan cahaya - kira-kira 186,000 km sesaat (300,000 kilometer sesaat) - adalah berterusan dan bebas daripada gerakan pemerhati atau sumber cahaya.
Konsep-konsep ini seolah-olah nampak mudah, tetapi mempunyai beberapa implikasi minda-lentur. Salah satu yang terbesar diwakili oleh persamaan terkenal Einstein, E = mc ², di mana E adalah tenaga, m ialah jisim dan c adalah kelajuan cahaya. Menurut persamaan ini, jisim dan tenaga adalah entiti fizikal yang sama dan boleh diubah antara satu sama lain. Kerana kesetaraan ini, tenaga yang mempunyai objek kerana gerakan akan meningkat besar-besaran. Dalam erti kata lain, lebih cepat satu objek bergerak, lebih besar kebesaran. Ini hanya menjadi ketara apabila objek bergerak terlalu pantas. Sebagai contoh, jika sesuatu bergerak pada 10 peratus kelajuan cahaya, kelajuan akan menjadi 0.5 peratus lebih daripada biasa. Tetapi jika ia bergerak pada 90 peratus kelajuan cahaya, kelajuan pegerakan akan berganda.
Sebagai objek menghampiri kelajuan cahaya, kelajuan naik mendadak. Jika objek yang cuba untuk bergerak 186,000 km sesaat, kelajuan menjadi tidak terbatas, dan begitu juga tenaga yang diperlukan untuk menggerakkannya. Atas sebab ini, objek tidak normal boleh bergerak sepantas atau lebih cepat daripada kelajuan cahaya.
Labels:
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Tuesday, September 25, 2012
What is St. Elmo's Fire?
If you were to look
outside your home during a thunderstorm and see a tall streetlamp glowing with
blue flames,
you might be tempted to call the fire department. Then you might notice that
the streetlamp is on fire but isn't actually burning -- and the water from the fire hose
isn't putting out the flames. At this point, you might be about ready to call a
priest, but that, like the call to the fire department, would be unnecessary.
The phenomenon you're witnessing is actually St. Elmo's Fire. (Which has nothing to do with a 1980s
coming-of-age film starring a young Emilio Estevez.)
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Wednesday, September 19, 2012
Brain during orgasm
Although the
reasons for having sex of any kind are varied and complex, reaching orgasm is
usually the goal. Because we're all so different, coming up with a universal
description of an orgasm is impossible. The one thing that most people can
agree on is that it's an incredibly, intensely pleasurable experience.
"
Merriam-Webster gets more descriptive, stating that it's "an explosive
discharge of neuromuscular tensions at the height of sexual arousal that is
usually accompanied by the ejaculation of semen in the male and by vaginal
contractions in the female." The famous sex researcher Dr. Alfred Kinsey
once said that an orgasm "can be likened to the crescendo, climax, and
sudden stillness achieved by an orchestra of human emotions ... an explosion of
tensions, and to sneezing" [source: Geddes].
Nearly every
aspect of the orgasm -- what's required to have one, why some people can't seem
to achieve one, why we have them at all -- has been the subject of much
research and debate. What happens to the body during an orgasm is pretty well-known,
and it's no surprise that the brain plays a big part in reaching one. But
researchers are still in the process of figuring out exactly what's happening
in the brain during an orgasm. Let's start with looking at the messages that
the body sends to the brain.
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Sunday, September 9, 2012
10 Scariest Bioweapons
Small
pox
Smallpox is caused by the variola
virus. The most common form of the disease has a 30 percent mortality
rate [source: CDC].
Signs of smallpox include high fevers, body aches, and a rash that develops
from fluid-filled bumps and scabs to permanent, pitted scars. The disease
predominantly spreads through direct contact with an infected person's skin or
bodily fluids, but also can be spread though the air in close, confined
environments.
In
1967, the World Health Organization (WHO) spearheaded an effort to eradicate
smallpox through mass vaccinations. As a result, 1977 marked the last naturally
occurring case of smallpox. The disease was effectively eliminated from the
natural world, but laboratory copies of smallpox still exist. Both Russia and the United
States possess
WHO-approved stores, but as smallpox played a role in several nations'
bioweapons programs, it's unknown how many secret stockpiles still exist.
The
CDC classifies smallpox as a Category A biological weapon due to its high
mortality rate and the fact that it can be transmitted through the air. While a
smallpox vaccine exists, typically only medical and military personnel undergo
vaccination -- meaning the rest of the population is very much at risk if
smallpox were unleashed as a weapon. How might the virus be released? Probably
in aerosol form or even in the old-fashioned way: by
sending an infected individual directly into the target area.
The method for unleashing a biological
weapon doesn't have to be flashy, however.
Anthrax
Most
cases of anthrax are cutaneous, transmitted
through skin contact with the spores. The most deadly form is inhalation
anthrax, when the spores travel to the lungs and then the immune
cells carry them to the lymph nodes. Here, the spores multiply and release
toxins that result in such symptoms as fever, respiratory problems, fatigue, muscle aches, enlarged lymph nodes, nausea,
vomiting, diarrhea and black ulcers. Inhalation anthrax carries the highest
mortality rate of the three (100 percent, 75 percent with medical treatment),
and unfortunately, that was the form contracted by all five casualties from the
2001 anthrax letters [source: NPR].
The
disease isn't easy to catch under normal situations, and it can't be
transmitted from person to person. Still, health workers, veterinarians and
military personnel normally undergo vaccinations. The rest of us, however,
remain at risk if someone were bent on another anthrax attack.
Along
with the lack of widespread vaccination -- a common theme among our scary
bioweapon nominees -- longevity is another point in anthrax's favor. Many
harmful biological agents can only survive a short while under certain
conditions. But hardy B. anthracis can sit on the shelf for 40 years or
more and still pose a lethal threat.
Tuesday, August 14, 2012
Saturday, June 23, 2012
Wednesday, June 6, 2012
Thursday, May 31, 2012
10 Things About Sex
1. Genetics Can Affect When a Person Will Lose His or Her Virginity.
Obviously, each person makes the individual decision of when to have sex for the first time, but recent studies show that your genetics can play a role in how early you make the decision. In fact, a study of twins who were separated at birth shows that there is a strong genetic link in the age a person chooses to lose his or her virginity.
"It's not like there's a gene for having sex at a certain date," says Nancy Segal, a psychologist at California State University in Fullerton, who led the new study. But inheritable traits such as impulsiveness do affect the decision, although social mores play a major role as well. In fact, there was less of a consistent genetic effect in twins born before 1948 than those born after 1960.
2. The Clitoris is Mostly an Internal Organ
Another reason has to do with the times. You'll notice that the majority of the research on these aspects of female sex organs has been performed only within the last twenty years. In that time, two major changes have occurred –there are now far more women doctors and scientists than ever before, and technology has only now been afforded certain views of the human body. Naturally, females display more interest in what makes the female body go gaga, and without devices like the MRI, many discoveries, like that of the internal clitoris, would have been impossible to find.
Thanks to these changes, it's pretty likely that the understanding of female sexuality will increase drastically in the next few decades.
Thank too:-ODDEE
Obviously, each person makes the individual decision of when to have sex for the first time, but recent studies show that your genetics can play a role in how early you make the decision. In fact, a study of twins who were separated at birth shows that there is a strong genetic link in the age a person chooses to lose his or her virginity.
"It's not like there's a gene for having sex at a certain date," says Nancy Segal, a psychologist at California State University in Fullerton, who led the new study. But inheritable traits such as impulsiveness do affect the decision, although social mores play a major role as well. In fact, there was less of a consistent genetic effect in twins born before 1948 than those born after 1960.
2. The Clitoris is Mostly an Internal Organ
By now, most people know about the clitoris and where it is located…or at least, they know about the tip of the organ. While you might think that little bump that drives women crazy is the whole enchilada, as it turns out, that's just the tip of the iceberg. In fact, the majority of the clitoris is located within the pelvis and, when erect, it actually wraps around the vagina –making the vagina and sex more pleasurable (for both parties) as the womangets more excited.
So why does everyone think of the clitoris as only the little bump on the outside? Well, for one thing, it's role as the visible part certainly makes it the most noticeable, but more so, researchers didn't start to learn about the amazing expanses of the organ until they were able to view it through an MRI machine, something they couldn't do until the 90's. It wasn't until 2009 that the world was introduced to a complete 3D sonogram image of the organ.
Of course, the little bump we're all familiar with is pretty darn important. In fact, it has over 8,000 nerve fibers –more than twice the number found in the head of a penis.
So why does everyone think of the clitoris as only the little bump on the outside? Well, for one thing, it's role as the visible part certainly makes it the most noticeable, but more so, researchers didn't start to learn about the amazing expanses of the organ until they were able to view it through an MRI machine, something they couldn't do until the 90's. It wasn't until 2009 that the world was introduced to a complete 3D sonogram image of the organ.
Of course, the little bump we're all familiar with is pretty darn important. In fact, it has over 8,000 nerve fibers –more than twice the number found in the head of a penis.
3.Sperm is Surprisingly Nutritious
At around 15 calories per “serving,” sperm contains the same protein as the white of a large egg, along with vitamin C, calcium, magnesium, potassium, vitamin B12 and zinc. Sure, it might not be as healthy as a multi-vitamin, but few vitamins come with such pleasurable effects.
4.Sex Can Help You Stay Healthy
Having sex once or twice a week can actually boost your immune system, as it increases the levels of immunoglobulin A in the body. Immunoglobulin A is an antibody that lives in your saliva and mucous linings that helps stop colds and flu before they start, by fighting the viruses off before they get past your nose or mouth.
5.Having Sex Can Make Women Look More Attractive
When women have sex their estrogen levels double, making their hair shinier and skin softer. “Estrogen seems to be the fountain of youth for women,” says Patti Britton, PhD, clinical sexologist.
Additionally, increased blood flow from an orgasm makes their cheeks more rosy and their lips redder –although, apparently, only in warmer temperatures. So if you ladies out there want a quick beauty treatment, consider heading to a steamy bedroom rather than the beauty salon.
Additionally, increased blood flow from an orgasm makes their cheeks more rosy and their lips redder –although, apparently, only in warmer temperatures. So if you ladies out there want a quick beauty treatment, consider heading to a steamy bedroom rather than the beauty salon.
6.If You Are Sexually Active, You'll Probably Get an STD
Studies show over 80% of all sexually active adults will contract an STD at some point, although most won't notice. That's because 80% of all people who contract one of the 25 varieties of STDs don't show any symptoms and most don't even realize they have one. In fact, the American Social Health Association estimates that 80% of sexually active people contract the Human Papillomavirus (HPV) at one point in their life. While those statistics were taken before the HPV vaccine was released, the vaccine only prevents two of the most dangerous strains of the disease, meaning even those vaccinated can still catch one of the many other strains.
While the numbers sound scary, the upside is that most people who contract an STD won't suffer any negative effects as a result.
While the numbers sound scary, the upside is that most people who contract an STD won't suffer any negative effects as a result.
7.Birth Control Affects Women's Taste in Men
The pill may have done wonders for women's lib, but it turns out it might also be hurting their sex lives. A recent study has shown that women who are on the pill get with partners they find less attractive and worse in bed because these men offer better opportunities for a long-term relationship. While the women were less sexually satisfied, they were, on average, much happier with the non-sexual aspects of their relationships. Additionally, women on the pill stayed in relationships for an average of two years longer than those who were not on the medication.
Researchers believe this is because the pill affects the chemistry of a woman's brain, making them more interested in obtaining a long-term relationship than finding someone they would be more sexually compatible with.
Researchers believe this is because the pill affects the chemistry of a woman's brain, making them more interested in obtaining a long-term relationship than finding someone they would be more sexually compatible with.
8. Diet Can Affect the Flavour of Semen
Gentlemen, if you want your lady to be more orally fixated, you might want to consider switching your diet for her pleasure. As it turns out, sugary fruitslike kiwi, watermelon and pineapple make semen taste lighter, while beer and coffee leave it with a strong, bitter flavor. Meat and fish can make it taste more buttery, while acidic fruits like cranberries, plums and liquorscan give it a sugary flavor. Whatever you do, don't chug milk before hitting the hay as dairy can cause semen to taste foul due to its high bacterial levels.
9.Female Sexuality is Still Largely a Mystery
There is, as yet, no scientific consensus on whether or not the G-Spot exists or if female ejaculation is real. Critics of the G-Spot largely focus their arguments on the fact that because so many women do not experience vaginal orgasms, that it must not exist. Additionally, they point out that there is no area inside the vagina with more nerve endings than any other area. They also use the discovery about the clitoris being internal to argue that vaginal orgasms are caused by the same organ, not a separate erogenous zone.
Proponents of the G-Spot argue that the vagina does have an erogenous zone that swells up when excited and that this area provides an additional lubricant when it is sexually aroused. They also show that ultrasound studies show changes to the area during sex.
The debate on female ejaculation is often tied in with the G-Spot argument as proponents argue that ejaculation is tied in with stimulation of the G-Spot. While it is widely accepted that some women have been known to gush fluid during orgasm, the debate largely centers around what the fluid is actually made of. Many critics claim the fluid is simply urine. Some proponents argue that it is a separate substance, while others debate that it is urine; but urine is filled with a unique selection of chemicals, making it qualify as a sexually-induced ejaculation regardless of the connection with the bladder
Proponents of the G-Spot argue that the vagina does have an erogenous zone that swells up when excited and that this area provides an additional lubricant when it is sexually aroused. They also show that ultrasound studies show changes to the area during sex.
The debate on female ejaculation is often tied in with the G-Spot argument as proponents argue that ejaculation is tied in with stimulation of the G-Spot. While it is widely accepted that some women have been known to gush fluid during orgasm, the debate largely centers around what the fluid is actually made of. Many critics claim the fluid is simply urine. Some proponents argue that it is a separate substance, while others debate that it is urine; but urine is filled with a unique selection of chemicals, making it qualify as a sexually-induced ejaculation regardless of the connection with the bladder
10.Women's Sex Organs Are Now Being Studied More Often
There are a few main reasons that so little is known about female sexuality. For one, the clitoris, the G-Spot and female ejaculation, are all completely unrelated to reproduction and are instead all about pleasure (as a matter of fact, the clitoris is the only organ that exists solely for the purpose of pleasure), making many scientists believe they deserve less interest than the ovaries, vagina, penis or testicles. Of course, now that these sex organs are pretty well understood, scientists can feel free to move on to understanding the more complex role of non-reproductive sexual functions.Another reason has to do with the times. You'll notice that the majority of the research on these aspects of female sex organs has been performed only within the last twenty years. In that time, two major changes have occurred –there are now far more women doctors and scientists than ever before, and technology has only now been afforded certain views of the human body. Naturally, females display more interest in what makes the female body go gaga, and without devices like the MRI, many discoveries, like that of the internal clitoris, would have been impossible to find.
Thanks to these changes, it's pretty likely that the understanding of female sexuality will increase drastically in the next few decades.
Thank too:-ODDEE
Tuesday, February 8, 2011
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