It mostly comes down to revolutionary survival.
For our ancestors, darkness meant being at a massive disadvantage against nocturnal predators.
Since we lack night vision, our brains developed a fear response to keep us away from potential danger we could not see.
Psychologically, it is more about fear of unknown than the absence of light itself.
When the eyes can not provide clear information, the brain tends to trigger the " fight or flight ' response !!!!
If we add a pinch of baking soda when cooking vegetables, they get cooked easily.
Baking soda softens vegetable cell walls through a chemical process called alkalization.
Plant cells are bound by pectin. It acts like cement between cell walls.
Mixing baking soda to the water in which vegetables are supposed to cook, baking soda raises the water pH, thus making it alkaline.
In alkaline environment, pectin bonds breaks down quickly. This further reduces the rigidity of tough and fibrous vegetables.
This allows the boiling water to penetrate into vegetable, significantly reducing cooking time.
Magnetic compasses always point towards Earth's magnetic north.
But there are some places where magnetic compasses stop working.
They are -----
1. Earth's magnetic poles
At magnetic poles, Earth's magnetic field runs almost vertically instead of horizontally.
This makes compass needles to dip downwards. It often spins or points randomly.
2. Bermuda triangle
In this place in Atlantic ocean, compass fails. Here we can observe unusual magnetic variations.
3. Kursk's magnetic anomoly, Russia
In this region, large amounts of iron ore deposits are found. This creates strong local magnetic pull which overpower Earth's natural field.
4. South Atlantic anomoly
In this region, Earth's magnetic field weakens. It also affects satellites and electronic signals.
5. Kerguelen plateau
This underwater volcanic plateau has unusual magnetic properties which distrubs Earth 's magnetic Field.
The name United States of America is commonly shortened to USA.
Before independence, the land now known as United States consisted of 13 British colonies along eastern cows of North America.
These colonies differ in culture, economy and governance, yet they shared growing dissatisfaction with British rule.
When they decided to break away from British crown, they faced a crucial question --- " How could seperate colonies unite, while still maintaining their individual identities ?? "
After declaring independence in 1776, the former colonies merge into a single centralized territory.
Instead they formed a union of individual states, each with its own government and law, while agreeing to be governed collectively on national matters such as defence and trade.
So, America is called USA because the name accurately describes the nation : A Union of individual states located in America !!!
Built from scratch, city designers can work in grid patterns to make sure that residents have easy access to schools, super markets, health clinics and most importantly to accommodate the anticipated amount of traffic.
Such purpose built capitals are ------
1. Brasilia , Brazil
2. Canberra, Australia
3. Wellington, New Zealand
4. Islamabad, Pakistan
5. Naypyidaw, Myanmar
6. Belmopan , Belize
7. Ciudad de la Paz , Equatorial Guinea
