Thursday, November 5, 2015

LITERATURE: ROMANTICISM



"Romanticism" is a period, movement, style, or genre in literature, music, and other arts starting in the late 1700s and flourishing through the early to mid 1800s, a time when the modern mass culture in which we now live first took form: the rise of nation-states as defining social and geographic entities, increasing geographic and social mobility, people moving to cities, the growth of the middle class, new technologies including power from fossil fuels, and ideas or values including individualism, imaginative idealization of childhood, families, love, nature, and the past. The Romantic era is the historical period of literature in which modern readers most begin to see a reflection of themselves and their own modern conflicts and desires.

                       



The Romantic period has passed, but its styles and values still thrive today in popular forms and familiar attitudes, e.g.:


 belief in children's innocence and wisdom; youth as golden age; adulthood as corruption and betrayal

 nature as beauty and truth, esp. as the sublime (god-like awesomeness mixing pleasure and pain, beauty and terror)

 heroic individualism; the individual separate from the masses

 characters as symbolic types

desire or will as personal motivation

 feelings, emotions, and imagination take priority over logic and facts ("Anything you want you can have if you only want it enough.")

 intensification, excess, and extremes 

 nostalgia for the past

 common people idealized as dependable source of true common sense

 idealized or abstract settings

 the gothic as nightmare world of intense emotions

GEOGRAPHY:GLOBAL WARMING




Global warming is primarily a problem of too much carbon dioxide (CO2) in the atmosphere—which acts as a blanket, trapping heat and warming the planet. As we burn fossil fuels like coal, oil and natural gas for energy or cut down and burn forests to create pastures and plantations, carbon accumulates and overloads our atmosphere. Certain waste management and agricultural practices aggravate the problem by releasing other potent global warming gases, such as methane and nitrous oxide. See the pie chart for a breakdown of heat-trapping global warming emissions by economic sector.


Earth's climate is mostly influenced by the first 6 miles or so of the atmosphere which contains most of the matter making up the atmosphere. This is really a very thin layer if you think about it. In the book The End of Nature, author Bill McKibbin tells of walking three miles to from his cabin in the Adirondack's to buy food. Afterwards, he realized that on this short journey he had traveled a distance equal to that of the layer of the atmosphere where almost all the action of our climate is contained. In fact, if you were to view Earth from space, the principle part of the atmosphere would only be about as thick as the skin on an onion! Realizing this makes it more plausible to suppose that human beings can change the climate. A look at the amount of greenhouse gases we are spewing into the atmosphere (see below), makes it even more plausible.




CHEMISTRY:PH SCALE



PH SCALE

The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.


The pH scale is logarithmic and as a result, each whole pH value below 7 is ten times more acidic than the next higher value. For example, pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than pH 6. The same holds true for pH values above 7, each of which is ten times more alkaline (another way to say basic) than the next lower whole value. For example, pH 10 is ten times more alkaline than pH 9 and 100 times (10 times 10) more alkaline than pH 8.



Pure water is neutral. But when chemicals are mixed with water, the mixture can become either acidic or basic. Examples of acidic substances are vinegar and lemon juice. Lye, milk of magnesia, and ammonia are examples of basic substances.

PHYSICS:Newton's 3 Laws of Motion

FIRST LAW OF MOTION

An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.This law is often called "the law of inertia".







SECOND LAW OF MOTION

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

Everyone knows that heavier objects require more force to move the same distance as lighter objects.

The Second Law gives us an exact relationship between force, mass, and acceleration. It can be expressed as a mathematical equation:  

     F=MA


This is an example of how Newton's Second Law works:
Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s/s. Using Newton's Second Law, you can compute how much force Mike is applying to the car.
 

Answer = 50 newtons



THIRD LAW OF MOTION


For every action there is an equal and opposite re-action.
This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard.

 

The rocket's action is to push down on the ground with the force of its powerful engines, and the reaction is that the ground pushes the rocket upwards with an equal force.

 

MATHS:Classifications of Triangles

RIGHT TRIANGLE

A right triangle has one 90° and a variety of often-studied properties including:

EQUILATERAL TRIANGLE

picture of equilateral triangle
The Equilateral triangle shown on the left has three equal sides and three equal angles.
Each angle is 60°.

ISOSCELES TRIANGLE

The Isosceles triangle shown on the left has twoequal sides and two equal angles.

SCALENE TRIANGLE

The Scalene Triangle has no congruent sides. In other words, each side must have a different length.

ACUTE TRIANGLE

The Acute Triangle has three acute angles (anacute angle measures less than 90°).

OBTUSE TRIANGLE

Obtuse Triangle
The Obtuse Triangle has an obtuse angle (an obtuse angle has more than 90°). In the picture on the left, the shaded angle is the obtuse angle that distinguishes this triangle.
Since the total degrees in any triangle is 180°, an obtuse triangle can only have one angle that measures more than 90°.