Sunday, July 24, 2011

10 Terrible Acts of Mother Nature

10.Nature-Humanity Obliterated – Almost




Biped humanoids first appeared several million years ago, but the modern variety, Homo sapiens, hadn’t been around too long before they were almost wiped out. About 75,000 years ago, Lake Toba, in Indonesia, erupted in a super volcanic event, described by many scientists as ‘mega-colossal’. The event is believed to have been the largest explosive eruption anywhere on earth in the last 25 million years, and it was so immense it came very close to calling time-out for the burgeoning human race.

Up to 6,000 cubic kilometers of ash – enough to cover the entire USA to a depth of 70cm – jetted into the atmosphere. It took place in a part of the world fairly thin in habitation at that time, but its discharge of vast amounts of noxious sulphur dioxide, and a deposit of ash 25 centimeters thick, destroyed all the lush forests of south-east Asia, while dust clouds blocked sunlight and plunged the entire planet into an estimated 6 to 10 year volcanic winter.

There was worldwide destruction of nature vegetation and severe drought in all tropical rain forests, and entire groups of animals became eliminated. Some people believe this may have resulted in humans world-wide being reduced to just a few thousand individuals, surviving mostly in Africa, with a core of perhaps only 10,000 breeding pairs. This bottleneck in human evolution, they say, could have been responsible for the very small residual gene pool in the world’s population now.

9 Foods That May Help Save Your Memory

Oil-based salad dressings




“The data support eating foods that are high in vitamin E and this includes healthy vegetable oil-based salad dressings, seeds and nuts, peanut butter, and whole grains,” says Martha Clare Morris, ScD, director of the section on nutrition and nutritional epidemiology in the Department of Internal Medicine at Rush University, in Chicago.

The benefit has been seen with vitamin-E rich foods, but not supplements, she says.

A potent antioxidant, vitamin E may help protect neurons or nerve cells. In Alzheimer’s disease, neurons in certain parts of the brain start to die, which jump-starts the cascade of events leading to cognitive deterioration.

7 Ways to Protect Your Memory

Improve Memory-Step No. 1: Eat toast for breakfast




 

Skipping carbs may harm your memory. A Tufts University study found that folks who eliminated carbohydrates from their diets performed worse on memory-based tasks than those who included them. Why? Your brain cells need carbs, which are converted in your body to glucose, to stay in peak form, says study co-author Robin Kanarek, PhD, professor of psychology at Tufts.

Pick whole grains and other complex carbs—they’re digested more slowly, so they deliver a steadier stream of glucose. Grab a whole-wheat muffin or slice of toast with a scrambled egg and cup of berries for a breakfast that’ll jump-start your gray matter.

5 Easy Ways to Reduce Your Cell Phone Radiation

Use a Wired Headset




This is the simplest and most effective way to keep the radiation away from your head. A wired headset keeps the antenna far away from your skull, allowing you to use your phone without worrying that you might be cooking your brain. A Bluetooth wireless headset will also reduce your exposure somewhat, but you'll still be absorbing some radiation. Most decent earbuds that you'd use to listen to your iPhone or other music-playing handset will also include a microphone for speaking.

Saturday, July 23, 2011

Top 20 Fruits You Probably Don’t Know







Fruits You Probably Don’t Know


10.Noni



Morinda citrifolia


File:Noni Fruit (Morinda Citrifolia)

Noni Fruits, otherwise known by many different names around the world, including the great moringa, Indian mulberry, dog dumpling and pace, is related to the coffee bean plant and is native throughout South East Asia and Australasia, but is cultivated throughout the tropics. The tree carries fruit throughout the year and the fruit tend to have a very pungent odour when ripening (also known as the cheese fruit or vomit fruit). Despite the smell, the fruit is high in fibre, vitamin A, protein, Iron and calcium, and is the staple diet on many Pacific Islands. The fruit can either be cooked into a stew or eaten raw with salt.

Top 10 Facts You Should Be Taught in School

Facts You Should Be Taught in School


The Program for International Student Assessment (PISA) is a worldwide educational evaluation of 15-year-old students. PISA is a highly respected program and enables politicians and policy-makers to examine the education system in different countries. The test focuses on reading, mathematics and science. In 2010, the results from the last series of PISA tests were released. It is clear that the United States and United Kingdom need to make some changes in the educational process.

South Korea ranked #1 in math and reading, #3 in science. Finland ranked #2 in math and reading, #1 in science. Canada ranked #5 in math and science, #3 in reading. New Zealand ranked #4 in reading and science, #7 in math. The United States ranked #14 in reading, #25 in math and #17 in science. The UK ranks #20 in reading, #22 in math and #11 in science. Students in the UK and US are not being taught the basic fundamentals of space, science, computers, disease, war and the atmosphere. This article will examine ten facts that should be taught in school.

 

 

School

People are taught is school that humans have five senses. They are hearing, sight, touch, smell and taste. In reality, people have more than five senses. The number ranges from 9 to over 20. By definition, senses are the physiological capacities in organisms that provide inputs for perception. Senses are feelings that allow you to navigate your environment. In humans, we have a central nervous system, which is made up of the brain, spinal cord and retina. The nervous system has an area dedicated to each sense. Apart from the traditional abilities, humans can sense high and low temperatures (thermoception), balance (equilibrioception), acceleration (kinesthesioception), body and limb position (proprioception) and pain (nociception).