Tag Archives: scientific

Learn For Free

freestuff
Here is a chance to learn something for free – No excuses now

Here is a list of websites that have ‘Free’ online courses

Alison
Coursera
FutureLearn
open2study
Khan Academy
edX
P2P U
Academic Earth
iversity
Stanford Online
MIT Open Courseware
Open Yale Courses
BBC Learning
OpenLearn
Carnegie Mellon University OLI
University of Reddit
Saylor

IDEAS, INSPIRATION & NEWS (websites which deliver educational content meant to entertain you and stimulate your brain)

TED
FORA
Big Think
99u
BBC Future
Seriously Amazing
How Stuff Works
Discovery News
National Geographic
Science News
Popular Science
IFLScience
YouTube Edu

DIY & HOW-TO’S (Don’t know how to do that? Want to learn how to do it yourself? Here are some great websites.)

wikiHow
Wonder How To
instructables
eHow
Howcast
MAKE
Do it yourself

FREE TEXTBOOKS & E-BOOKS

OpenStax CNX
Open Textbooks
Bookboon
Textbook Revolution
E-books Directory
FullBooks
Books Should Be Free
Classic Reader
Read Print
Project Gutenberg
AudioBooks For Free
LibriVox
Poem Hunter
Bartleby
MIT Classics
Many Books
Open Textbooks BCcampus
Open Textbook Library
WikiBooks

SCIENTIFIC ARTICLES & JOURNALS

Directory of Open Access Journals
Scitable
PLOS
Wiley Open Access
Springer Open
Oxford Open
Elsevier Open Access
ArXiv
Open Access Library
LEARN:

1. LANGUAGES

Duolingo
BBC Languages
Learn A Language
101languages
Memrise
Livemocha
Foreign Services Institute
My Languages
Surface Languages
Lingualia
OmniGlot
OpenCulture’s Language links

2. COMPUTER SCIENCE & PROGRAMMING

Codecademy
Programmr
GA Dash
CodeHS
w3schools
Code Avengers
Codelearn
The Code Player
Code School
Code.org
Programming Motherf*?$%#
Bento
Bucky’s room
WiBit
Learn Code the Hard Way
Mozilla Developer Network
Microsoft Virtual Academy

3. YOGA & MEDITATION

Learning Yoga
Learn Meditation
Yome
Free Meditation
Online Meditation
Do Yoga With Me
Yoga Learning Center

4. PHOTOGRAPHY & FILMMAKING

Exposure Guide
The Bastards Book of Photography
Cambridge in Color
Best Photo Lessons
Photography Course
Production Now
nyvs
Learn About Film
Film School Online

5. DRAWING & PAINTING

Enliighten
Ctrl+Paint
ArtGraphica
Google Cultural Institute
Drawspace
DragoArt
WetCanvas

6. INSTRUMENTS & MUSIC THEORY

Music Theory
Teoria
Music Theory Videos
Furmanczyk Academy of Music
Dave Conservatoire
Petrucci Music Library
Justin Guitar
Guitar Lessons
Piano Lessons
Zebra Keys
Play Bass Now

7. OTHER UNCATEGORIZED SKILLS

Investopedia
The Chess Website
Chesscademy
Chess.com
Spreeder
ReadSpeeder
First Aid for Free
First Aid Web
Wolfram Demonstrations Project

SOURCE

Leave a comment

Filed under Articles

Did You Know – 04/28/2014

 

If you have margarine in you kitchen and the family use it, you need to read this. I did not know this about margarine (It just so happens I don’t use it) so I was wondering “Did You Know”?

Polyunsaturated margarine became a major part of the Western diet and had overtaken butter in popularity in the mid-20th century. Despite their best efforts, the margarine lobby has failed to convince most people that their synthetic concoctions are healthy. So what is not obvious to most of the people who consume it? The manufacturing process of course, which is very similar to the way plastic is produced.

Do People That Eat Margarine Really Know How It’s Manufactured?

Did you know that numerous types of margarine carry the approved recommendations and seal of agencies that also promote cardiovascular health, such as heart and stroke foundations?

These days there are other con artists such as Earth’s Balance deceiving consumers and convincing perhaps millions of unsuspecting vegetarians and vegans into thinking they have the next best spread to replace butter when all they contain is genetically modified ingredients and more toxic oils like Canola.

Many consumers are also now choosing a particular imitation buttery spread because its label says it contains omega-3, not realizing the fatty acid is inferior compared with omega-3 from fish oil. For instance, Unilever Canada has been actively promoting the health aspects of margarine, particularly with its Becel line of products. Nearly all Becel products contains omega-3 derived from plant oils and usually through toxic extraction.

The problem is most consumers don’t have the nutrition savvy to know or understand how omega-3s are extracted and that they are not all the same.

Many of these spreads are only accentuating the all too pervasive imbalance that vegetable oils are causing with our omega-6 to omega-3 ratios. That imbalance has been linked to an increased risk for heart disease and may contribute to cancer, asthma, osteoporosis, inflammation, depression and other ailments. A growing body of evidence suggests the overconsumption of omega-6 needs attention.

Toxic GMO Soybean oil alone is now so ubiquitous in fast foods and processed foods that an astounding 20 percent of the calories in the American diet are estimated to come from this single source.

The ideal ratio between these two fatty acids is 1:1 and the nutritional habits of most people in developed nations has this ratio soaring more than 15:1 (omega 6: omega 3). So unless you are consuming reasonable amounts of omega 3 in your diet, you should stay away from any type of spread or oil saturated with omega 6. Omega-3 and omega-6 compete for the same metabolic enzymes. The dietary imbalance that exists in rice bran oil can create all sorts of problems to body processes, including a tendency towards inflammation.

margarinefw-428becel.jpg 428×380 pixels

Manufacturing Process

The basic method of making margarine today consists of emulsifying a blend of vegetable oils and fats, which can be modified using fractionation, interesterification, and/or hydrogenation of plant fats, chilling the mixture to solidify it and working it to improve the texture. Those fats that are liquid at room temperature are oils.

The oils are hydrogenated by passing hydrogen through the oil in the presence of a nickel catalyst. The addition of hydrogen effectively increases the melting point of the oil and thus “hardening” it. Margarines made in this way contain hydrogenated fat. If some of the chemical bonds aren’t hydrogenated during the process, they will still be present in the final margarine in molecules of trans fats the consumption of which has been shown to be a risk factor for cardiovascular disease.

To boost its health profile, modern margarines are making their products from wide variety of animal or vegetable fats, mixed with skim milk, and emulsifiers, such as soy lecithin to help disperse the water phase evenly throughout the oil, and preservatives are also commonly added.

The margarine industry has also taken to promoting the fact it’s low in saturated fat, a thinly veiled jab at butter. But growing evidence is now firmly establishing that saturated fat may not be a problem at all. A false interpretation of scientific studies has led to millions being “over-medicated” with statin drugs due to the proliferation of myths in the medical community regarding the role of saturated fat in heart disease.

Certainly if saturated fat was a problem, then coconut oil would be the unhealthiest oil on Earth, yet it’s the healthiest.

Actually butter contains many nutrients that protect us from heart disease. First among these is vitamin A which is needed for the health of the thyroid and adrenal glands, both of which play a role in maintaining the proper functioning of the heart and cardiovascular system. Abnormalities of the heart and larger blood vessels occur in babies born to vitamin A deficient mothers. Butter was and is still is recognized by many as the most easily absorbed source of vitamin A.

Butter contains lecithin, a substance that assists in the proper assimilation and metabolism of cholesterol and other fat constituents.
Butter also contains a number of anti-oxidants that protect against the kind of free radical damage that weakens the arteries. Vitamin A and vitamin E found in butter both play a strong anti-oxidant role. Butter is a very rich source of selenium, a vital anti-oxidant—containing more per gram than herring or wheat germ.

Why You Should Avoid Margarine, Shortening and Spreads

There are a myriad of unhealthy components to margarine and other butter imposters, including:
Trans fats: These unnatural fats in margarine, shortenings and spreads are formed during the process of hydrogenation, which turns liquid vegetable oils into a solid fat

Trans fats contribute to heart disease, cancer, bone problems, hormonal imbalance and skin disease; infertility, difficulties in pregnancy and problems with lactation; and low birth weight, growth problems and learning disabilities in children.

A U.S. government panel of scientists determined that man-made trans fats are unsafe at any level. (Small amounts of natural trans fats occur in butter and other animal fats, but these are not harmful.)

Free radicals: Free radicals and other toxic breakdown products are the result of high temperature industrial processing of vegetable oils. They contribute to numerous health problems, including cancer and heart disease.

Synthetic vitamins: Synthetic vitamin A and other vitamins are added to margarine and spreads. These often have an opposite (and detrimental) effect compared to the natural vitamins in butter.

Emulsifiers and preservatives: Numerous additives of questionable safety are added to margarines and spreads. Most vegetable shortening is stabilized with preservatives like BHT.

Hexane and other solvents: Used in the extraction process, these industrial chemicals can have toxic effects.

Bleach: The natural color of partially hydrogenated vegetable oil is grey so manufacturers bleach it to make it white. Yellow coloring is then added to margarine and spreads.

Artificial flavors: These help mask the terrible taste and odor of partially hydrogenated oils, and provide a fake butter taste.

Mono-and di-glycerides: These contain trans fats that manufacturers do not have to list on the label. They are used in high amounts in so-called “low-trans” spreads.

Soy protein isolate: This highly processed powder is added to “low-trans” spreads to give them body. It can contribute to thyroid dysfunction, digestive disorders and many other health problems.

Sterols: Often added to spreads to give them cholesterol-lowering qualities, these estrogen compounds can cause endocrine problems; in animals these sterols contribute to sexual inversion.

I don’t eat much butter myself but I would select it as an option on any opportunity over these chemical and so-called healthier spreads. If you really want to use a healthy spread, try coconut butter or one of many healthy nut or hemp butters available. The further you stay away from chemical and genetically modified spreads made with GMO oils, the healthier your diet will be.

Natasha Longo has a master’s degree in nutrition and is a certified fitness and nutritional counselor. She has consulted on public health policy and procurement in Canada, Australia, Spain, Ireland, England and Germany.

Source
http://preventdisease.com/news/14/041514_Do-People-That-Eat-Margarine-Know-How-Its-Manufactured.shtml

Leave a comment

Filed under Articles

Did You Know – 07/22/2013

big-bang-theory

1. Big Bang Theory

Based on research performed by Edwin Hubble, Georges Lemaitre and Albert Einstein, among others, the big bang theory postulates that the universe began almost 14 billion years ago with a massive expansion event. At the time, the universe was confined to a single point, encompassing all of the universe’s matter. That original movement continues today, as the universe keeps expanding outward.
The theory of the big bang gained widespread support in the scientific community after Arno Penzias and Robert Wilson discovered cosmic microwave background radiation in 1965. Using radio telescopes, the two astronomers detected cosmic noise, or static, that didn’t dissipate over time. Collaborating with Princeton researcher Robert Dicke, the pair confirmed Dicke’s hypothesis that the original big bang left behind low-level radiation detectable throughout the universe.

vultures

2. Vultures
Vultures often feed on dead bodies of sickly animals and curb the proliferation of bacteria. If they disappear, it could open the door to a spike in diseases, including anthrax and brucellosis in livestock, which could then spread to people.

The population of Oriental white-backed vultures in India has dropped from tens of millions to around 11,000 as of May 2008 [source: Morrison]. Around 97 percent of two related species, the long-billed and slender-billed vultures, have also died off in India in large numbers [source: Morrison]. Scientists have identified an anti-inflammatory drug called diclofenac as the culprit. Banned from use in India in 2006, ranchers used to treat their livestock with it. If cattle given diclofenac died, and vultures fed on their carcasses, it took only one exposure to the tainted meat to kill the birds

Although they hunt down rotting carcasses of dead animals, vultures are referred to as birds of prey. They soar at altitudes thousands of feet above the ground in search of meat. New World vultures in particular have acute senses of smell to help them locate their meals. But even though they feed on nature’s garbage, vultures are surprisingly sanitary birds. For instance, they have no feathers on their heads, which allows them to stay cleaner while digging into messy carnage that may contain unhealthy bacteria. Vultures also urinate on themselves to keep comfortable and disease-free. As the urine evaporates, it cools the vulture’s body in the same way sweat works on humans. The acid in the urine simultaneously destroys harmful pathogens from their last dinner.

screen-shot-2013-03-05-at-22-34-50
3. Baboons Keep Pet Dogs
For many years, it has been asserted that the only animals that keep pets are human beings, but a troop of Hamadryas baboons near Ta-if, Saudi Arabia seems to have debunked that theory. Although some remain skeptical, claiming that the animals merely co-exist rather than share any bond, it is believed that the baboons kidnap the dogs as puppies and enjoy a symbiotic relationship with them much in the way that humans do. In exchange for food and companionship, the dogs protect the troop, particularly the vulnerable babies, against other dogs. There has been very little research on the phenomenon, but the footage captured on the scene by a French film crew seems very compelling evidence.
Source

sniff-e1374017930504

4. Google Is A Dog Company
Like many internet companies, Google is a fairly unorthodox workplace. Along with free gourmet meals, daily summer BBQs, pool tables, and slides, employees are actually encouraged to bring their dogs with them to work. Of course, the pups are required to be fairly well-behaved and housebroken; overly vocal or otherwise ill-tempered dogs are asked to stay at home. From Google’s own codes of conduct: “Google’s affection for our canine friends is an integral facet of our corporate culture. We like cats, but we’re a dog company, so as a general rule, we feel cats visiting our offices would be fairly stressed out.”
Source

interesting_places_monastery_of_the_holy_trinity_meteora_greece2

5. Metéora, Greece
Metéora—meaning “middle of the sky”—is high up on a sandstone pillar in the Plain of Thessaly in central Greece. The Eastern Orthodox monastery is a UNESCO World Heritage site with perhaps the coolest origin story of the lot. Fable has it that the founder of the monastery, St. Athanasius, didn’t need to climb the rock face to plonk his religious flag in the sandstone: instead, he was carried to the dizzy heights by an eagle.
carved steps are the only mode of transport to the top. Before the 1920s, most people had to use ropes and pulleys to climb to the top, and when it was built-in the 14th century, ladders and nets were used to transport the materials over the 550-meter (1,800-ft) drop. The monastery is also famous for having featured in the James Bond movie For Your Eyes Only.
Source

Leave a comment

Filed under Articles

Did You Know – 10/31/2011

1. In the entire state of Ohio in 1895, there were only two cars on the road, and the drivers of these two cars crashed into each other. Source


2. The current scientific estimate for the age of the earth is 4.6 billion years. The evidence is based on radiometric age dating of meteorite material Source

3. A One-once gold nugget is more rare than a five-carat diamond. Gold is so heavy that one cubic foot of it weighs half a ton. Source

4. Camels milk does not curdle. They do not perspire, and their long feet keep them far above the scorching ground. Source

5. The first country to abolish capital punishment was Austria in 1787. Source

Leave a comment

Filed under Articles