Wednesday, March 28, 2018

Writer's Block

Writer's Block




Writer's block is a condition, primarily associated with writing, in which an author loses the ability to produce new work, or experiences a creative slowdown. The condition ranges in difficulty from coming up with original ideas to being unable to produce a work for years. Throughout history, writer's block has been a documented problem.
Professionals who have struggled with the affliction include authors such as F. Scott Fitzgerald and Joseph Mitchell, comic strip cartoonist Charles M. Schulz, composer Sergei Rachmaninoff, and songwriter Adele. Research concerning this topic was done in the late 1970s and 1980s. During this time, researchers were influenced by the Process and Post-Process movements, and therefore focused specifically on the writer's processes. The condition was first described in 1947 by psychoanalyst Edmund Bergler. However, some great writers may have already suffered from writer’s block years before Bergler described it, such as Herman Melville, who quit writing novels a few years after writing Moby-Dick.

Causes


              Writer's block may have several causes. Some are creative problems that originate within an author's work itself. A writer may run out of inspiration, or be distracted by other events. A fictional example can be found in George Orwell's novel Keep the Aspidistra Flying, in which the protagonist Gordon Comstock struggles in vain to complete an epic poem describing a day in London: "It was too big for him, that was the truth. It had never really progressed, it had simply fallen apart into a series of fragments."

Other blocks may be produced by adverse circumstances in a writer's life or career: physical illness, depression, the end of a relationship, financial pressures, or a sense of failure. The pressure to produce work may in itself contribute to writer's block, especially if they are compelled to work in ways that are against their natural inclination (i.e. with a deadline or an unsuitable style or genre). Writer's block may also come from feeling intimidated by one's previous big successes. The writer Elizabeth Gilbert, reflecting on her post-bestseller prospects, proposed that such a pressure might be released by interpreting creative writers as "having" genius rather than "being" a genius.

It has been suggested that writer's block is more than just a mentality. Under stress, a human brain will "shift control from the cerebral cortex to the limbic system". The limbic system is associated with the instinctual processes, such as "fight or flight" response; and behavior that is based on "deeply engrained training". The limited input from the cerebral cortex hinders a person's creative processes, which are replaced by the behaviors associated with the limbic system. The person is often unaware of the change, which may lead them to believe they are creatively "blocked". In her 2004 book The Midnight Disease: The Drive to Write, Writer's Block, and the Creative Brain (ISBN 9780618230655), the writer and neurologist Alice W. Flaherty has argued that literary creativity is a function of specific areas of the brain, and that block may be the result of brain activity being disrupted in those areas.

For a composition perspective, Lawrence Oliver says, in his article, "Helping Students Overcome Writer's Block", "Students receive little or no advice on how to generate ideas or explore their thoughts, and they usually must proceed through the writing process without guidance or corrective feedback from the teacher, who withholds comments and criticism until grading the final product." He says, students "learn to write by writing", and often they are insecure and/or paralyzed by rules.

Phyllis Koestenbaum wrote in her article "The Secret Climate the Year I Stopped Writing" about her trepidation toward writing, claiming it was tied directly to her instructor's response. She says, "I needed to write to feel, but without feeling I couldn't write." To contrast Koestenbaum experience, Nancy Sommers expressed her belief that papers do not end when students finish writing and that neither should instructors' comments.She urges a "partnership" between writers and instructors so that responses become a conversation.
James Adams notes in his book, Conceptual Blockbusting, various reasons blocks occur include fear of taking a risk, "chaos" in the pre-writing stage, judging versus generating ideas, an inability to incubate ideas, or a lack of motivation.

Treatment
     As far as strategies for coping with writer's block Clark describes: class and group discussion, journals, free writing and brainstorming, clustering, list making, and engaging with the text. To overcome writing blocks, Oliver suggests asking writers questions to uncover their writing process. Then he recommends solutions such as systematic questioning, freewriting, and encouragement. A recent study of 2500 writers aimed to find techniques that writers themselves use to overcome writer's block.  The research discovered a range of solutions from altering the time of day to write and setting deadlines to lowering expectations and using mindfulness meditation.
Garbriele Lusser Rico's concern with the mind links to brain lateralization, also explored by Rose and Linda Flowers and John R. Hayes among others. Rico's book, Writing the Natural Way looks into invention strategies, such as clustering, which has been noted to be an invention strategy used to help writers overcome their blocks, and further emphasizes the solutions presented in works by Rose, Oliver, and Clark. Similar to Rico, James Adams discusses right brain involvement in writing. While Downey purposes that he is basing his approach in practical concerns, his concentration on right brain techniques speaks to cognitive theory approach similar to Rico's and a more practical advice for writers to approach their writer's block.

Different Kinds of Clouds

Different Kinds of Clouds
What is Cloud?

In meteorology, a cloud is an aerosol comprising a visible mass of minute liquid droplets, frozen crystals, or particles suspended in the atmosphere above the surface of a planetary body. The droplets and crystals may be made of water or various chemicals. On Earth, clouds are formed as a result of saturation of the air when it is cooled to its dew point, or when it gains sufficient moisture usually in the form of water vapor from an adjacent source to raise the dew point to the ambient temperature. They are seen in the Earth's homo sphere which includes the tropospherestratosphere, and mesosphere. Nephology is the science of clouds which is undertaken in the cloud physics branch of meteorology.

Cirrocumulus Cloud



Cirrocumulus is one of the three main genus-types of high-altitude tropospheric clouds, the other two being cirrus and cirrostratus.They usually occur at an altitude of 5 kilometres (16,000 ft) to 12 kilometres (39,000 ft). Like lower altitude cumuliform and stratocumuliform clouds, cirrocumulus signifies convection. Unlike other high cirrus and cirrostratus, cirrocumulus includes a small amount of liquid water droplets, although these are in a supercooled state. Ice crystals are the predominant component, and typically, the ice crystals cause the supercooled water drops in the cloud to rapidly freeze, transforming the cirrocumulus into cirrostratus. This process can also produce precipitation in the form of a virga consisting of ice or snow. Thus cirrocumulus clouds are usually short-lived. They usually only form as part of a short-lived transitional phase within an area of cirrus clouds and can also form briefly as a result of the breaking up of part of a cumulonimbus anvil.



Altocumulus Cloud

Altocumulusis a middle-altitude cloud genus that belongs mainly to the stratocumuliform physical category characterized by globular masses or rolls in layers or patches, the individual elements being larger and darker than those of cirrocumulus and smaller than those of stratocumulus. However, if the layers become tufted in appearance due to increased airmass instability, then the altocumulus clouds become more purely cumuliform in structure. Like other cumuliform and stratocumuliform clouds, altocumulus signifies convection. A sheet of partially conjoined altocumulus perlucidus is sometimes found preceding a weakening warm front, where the altostratus is starting to fragment, resulting in patches of altocumulus perlucidus between the areas of altostratus. Altocumulus is also commonly found between the warm and cold fronts in a depression, although this is often hidden by lower clouds.
Towering altocumulus, known as altocumulus castellanus, frequently signals the development of thunderstorms later in the day, as it shows instability and convection in the middle levels of the troposphere( the lowest layer of the atmosphere), the area where towering cumulus clouds can turn into cumulonimbus. It is therefore one of three warning clouds often recorded by the aviation industry, the other two being towering cumulus and cumulonimbus. Altocumulus generally forms about 2,000 to 6,100 meters (6,600 to 20,000 ft) above ground level, a similar level to altostratus formations, and satellite photography has revealed that the two types of cloud can create formations that can stretch for thousands of square miles. Extensive altocumulus formations, particularly if they take the form of undulatus are often referred to as altocumulus mackerel sky.


Stratocumulus Cloud

stratocumulus cloud belongs to a genus-type of clouds characterized by large dark, rounded masses, usually in groups, lines, or waves, the individual elements being larger than those in altocumulus, and the whole being at a lower altitude, usually below 2,400 meters (8,000 ft). Weak convective currents create shallow cloud layers because of drier, stable air above preventing continued vertical development.


Cirrus Cloud

Cirrus (cloud classification symbol: Ci) is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair. This cloud can form at any altitudebetween 16,500 ft (5.0 km) and 45,000 ft (14 km) above sea level. The strands of cloud sometimes appear in tufts of a distinctive form referred to by the common name of "mares' tails".
On planet Earth, cirrus generally appears white or light grey in color. It forms when water vapor undergoes deposition at altitudes above 5,500 m (18,000 ft) in temperate regions and above 6,400 m (21,000 ft) in tropical regions. It also forms from the outflow of tropical cyclones or the anvils of cumulonimbus clouds. Since cirrus clouds arrive in advance of the frontal system or tropical cyclone, it indicates that weather conditions may soon deteriorate. While it indicates the arrival of precipitation (rain), cirrus clouds only produce fall streaks (falling ice crystals that evaporate before landing on the ground).


Altostratus Cloud

Altostratus is a middle altitude cloud genus belonging to the stratiform physical category characterized by a generally uniform gray to bluish-green and sheet or layer. It is lighter in color than nimbostratus and darker than high cirrostratus. The sun can be seen through thin altostratus, but thicker layers can be quite opaque.
Altostratus most often takes the form of a featureless sheet of cloud but can be wavy (undulatus) as a result of wind shear through the cloud. It can also be fragmented (fibratus) with clear sky visible, which often the approach of a weakened or upper level warm frontAltostratus is formed by the lifting of a large mostly stable air mass that causes invisible water vapor to condense into cloud. It can produce light precipitation, often in the form of virga. If the precipitation increases in persistence and intensity, the altostratus cloud may thicken into nimbostratus.


Stratus Cloud

Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliformclouds that are formed by rising thermals. More specifically, the term stratus is used to describe flat, hazy, featureless clouds of low altitude varying in color from dark gray to nearly white. The word "stratus" comes from the Latin prefix "strato-", meaning "layer". Stratus clouds may produce a light drizzle or a small amount of snow. These clouds are essentially above-ground fog formed either through the lifting of morning fog or through cold air moving at low altitudes over a region. Some call these clouds "high fog" for the fog-like cloud. While light rain may fall, this cloud does not indicate much meteorological activity.


Cumulus Cloud

Cumulus clouds are clouds which have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance. Their name derives from the Latin cumulo-, meaning heap or pile. Cumulus clouds are low-level clouds, generally less than 2,000 m (6,600 ft) in altitude unless they are the more vertical cumulus congestus form. Cumulus clouds may appear by themselves, in lines, or in clusters.
Cumulus clouds are often precursors of other types of clouds, such as cumulonimbus, when influenced by weather factors such as instability, moisture, and temperature gradient. Normally, cumulus clouds produce little or no precipitation, but they can grow into the precipitation-bearing congestus or cumulonimbus clouds. Cumulus clouds can be formed from water vapor, supercooled water droplets, or ice crystals, depending upon the ambient temperature. They come in many distinct subforms, and generally cool the earth by reflecting the incoming solar radiation. Cumulus clouds are part of the larger category of free-convective cumuliform clouds, which include cumulonimbus clouds. The latter genus-type is sometimes categorized separately as cumulonimbiform due to its more complex structure that often includes a cirriform or anvil top. There are also cumuliform clouds of limited convection that comprise stratocumulus (low-étage), altocumulus (middle-étage) and cirrocumulus (high-étage). These last three genus-types are sometimes classified separately as stratocumuliform.


Cumulonimbus Cloud

Cumulonimbus, from the Latin cumulus ("heaped") and nimbus ("rainstorm"), is a dense, towering vertical cloud, forming from water vapor carried by powerful upward air currents. If observed during a storm, these clouds may be referred to as thunderheads. Cumulonimbus can form alone, in clusters, or along cold front squall lines. These clouds are capable of producing lightning and other dangerous severe weather, such as tornadoes. Cumulonimbus progress from overdeveloped cumulus congestus clouds and may further develop as part of a supercell.



Nimbostratus Clouds

Nimbostratus is a stratiform genus formerly classified as "Family C” low-level, but now considered by the World Meteorological Organization (WMO) to be a middle- or multi-level stratus type.. Although it is usually a low-based cloud, it actually forms most commonly in the middle level of the troposphere and then spreads vertically into the low and high levels. This change in classification would once have made it a "Family D" cloud, but this style of letter-based family nomenclature was discontinued by the WMO in 1956. Nimbostratus usually produces precipitation over a wide area. Nimbo- is from the Latin word nimbus, which denotes precipitation. Downward-growing nimbostratus can have the same vertical extent as most large upward-growing cumulus, but its horizontal extent tends to be even greater. This sometimes leads to the exclusion of nimbostratus from the group of vertical clouds by some independent meteorologists and educators. Classifications that follow this approach usually show nimbostratus as low-level based on its normal base height range.




Monday, March 26, 2018

Neutron Star

Image result for neutron star


Neutron Star

What is Neutron Star?
               Neutron stars are city-size stellar objects with a mass about 1.4 times that of the sun. Born from the explosive death of another, larger stars, these tiny objects pack quite a punch. Let's take a look at what they are, how they form, and how they vary.
When stars four to eight times as massive as the sun explode in a violent supernova, their outer layers can blow off in an often-spectacular display, leaving behind a small, dense core that continues to collapse. Gravity presses the material in on itself so tightly that protons and electrons combine to make neutrons, yielding the name "neutron star." Supernova Photos: Great Images of Star Explosions
Neutron stars pack their mass inside a 20-kilometer (12.4 miles) diameter. They are so dense that a single teaspoon would weigh a billion tons — assuming you somehow managed to snag a sample without being captured by the body's strong gravitational pull. On average, gravity on a neutron star is 2 billion times stronger than gravity on Earth. In fact, it's strong enough to significantly bend radiation from the star in a process known as gravitational lensing, allowing astronomers to see some of the back side of the star.
The power from the supernova that birthed it gives the star an extremely quick rotation, causing it to spin several times in a second. Neutron stars can spin as fast as 43,000 times per minute, gradually slowing over time.
If a neutron star is part of a binary system that survived the deadly blast from its supernova (or if it captured a passing companion), things can get even more interesting. If the second star is less massive than the sun, it pulls mass from its companion into a Roche lobe, a balloon-like cloud of material that orbits the neutron star. Companion stars up to 10 times the sun's mass create similar mass transfers that are more unstable and don't last as long.
Stars more than 10 times as massive as the sun transfer material in the form of stellar wind. The material flows along the magnetic poles of the neutron star, creating X-ray pulsations as it is heated.
By 2010, approximately 1,800 pulsars had been identified through radio detection, with another 70 found by gamma-rays. Some pulsars even have planets orbiting them — and some may turn into planets.



Writer's Block

Writer's Block Writer's block  is a condition, primarily associated with writing, in which an author loses the ability ...