paula's corner - Podcasts - Powered by Odiogo

paula's corner - Podcasts - Powered by Odiogo

DESCRIPTION

My friend's name is Paula. She is 14 years old. She lives from Spain. She lives in Barraca.

She is a student in 3r ESO in Josep Mª Parra secondary school and she is a good student.She speaks spanish and litle english in a secundary school. In her free times she listen to music.

She has got a brown hair and her hair is curly. Her eyes are browns.She is beautiful and long.

WIATER POWER

I think water power is very important because itdoesn't poliut.

A hammer is a tool meant to deliver an impact to an object. The most common uses are for driving nails, fitting parts, and breaking up objects. Hammers are often designed for a specific purpose, and vary widely in their shape and structure. Usual features are a handle and a head, with most of the weight in the head. The basic design is hand-operated, but there are also many mechanically operated models for heavier uses.

The hammer is a basic tool of many professions, and can also be used as a weapon. By analogy, the name hammer has also been used for devices that are designed to deliver blows, e.g. in the caplock mechanism of firearms.

SOLID BIOMASS

Solid biomass is mostly commonly usually used directly as a combustible fuel, producing 10-20 MJ/kg of heat.

Its forms and sources include wood fuel, the biogenic portion of municipal solid waste, or the unused portion of field crops. Field crops may or may not be grown intentionally as an energy crop, and the remaining plant byproduct used as a fuel. Most types of biomass contain energy. Even cow manure still contains two-thirds of the original energy consumed by the cow. Energy harvesting via a bioreactor is a cost-effective solution to the waste disposal issues faced by the dairy farmer, and can produce enough biogas to run a farm.

With current technology, it is not ideally suited for use as a transportation fuel. Most transportation vehicles require power sources with high power density, such as that provided by internal combustion engines. These engines generally require clean burning fuels, which are generally in liquid form, and to a lesser extent, compressed gaseous phase. Liquids are more portable because they can have a high energy density, and they can be pumped, which makes handling easier.

Non-transportation applications can usually tolerate the low power-density of external combustion engines, that can run directly on less-expensive solid biomass fuel, for combined heat and power. One type of biomass is wood, which has been used for millennia. Two billion people currently cook every day, and heat their homes in the winter by burning biomass, which is a major contributor to man-made climate change global warming.^{[citation needed]} The black soot that is being carried from Asia to polar ice caps is causing them to melt faster in the summer.^{[citation needed]} In the 19th century, wood-fired steam engines were common, contributing significantly to industrial revolution unhealthy air pollution.^{[citation needed]} Coal is a form of biomass that has been compressed over millennia to produce a non-renewable, highly-polluting fossil fuel.

Wood and its byproducts can now be converted through processes such as gasification into biofuels such as woodgas, biogas, methanol or ethanol fuel; although further development may be required to make these methods affordable and practical. Sugar cane residue, wheat chaff, corn cobs and other plant matter can be, and are, burned quite successfully. The net carbon dioxide emissions that are added to the atmosphere by this process are only from the fossil fuel that was consumed to plant, fertilize, harvest and transport the biomass.

Processes to harvest biomass from short-rotation trees like poplars and willows and perennial grasses such as switchgrass, phalaris, and miscanthus, require less frequent cultivation and less nitrogen than do typical annual crops. Pelletizing miscanthus and burning it to generate electricity is being studied and may be economically viable.^[26]

DARWIN

Charles Robert Darwin FRS (12 February 1809 – 19 April 1882) was an English naturalist^[I] who realised and presented compelling evidence that all species of life have evolved over time from common ancestors, through the process he called natural selection. The fact that evolution occurs became accepted by the scientific community and much of the general public in his lifetime, while his theory of natural selection came to be widely seen as the primary explanation of the process of evolution in the 1930s,^[1] and now forms the basis of modern evolutionary theory. In modified form, Darwin’s scientific discovery is the unifying theory of the life sciences, providing logical explanation for the diversity of life.^[2]

At Edinburgh University Darwin neglected medical studies to investigate marine invertebrates, then the University of Cambridge encouraged a passion for natural science.^[3] His five-year voyage on HMS Beagle established him as an eminent geologist whose observations and theories supported Charles Lyell’s uniformitarian ideas, and publication of his journal of the voyage made him famous as a popular author. Puzzled by the geographical distribution of wildlife and fossils he collected on the voyage, Darwin investigated the transmutation of species and conceived his theory of natural selection in 1838.^[4] Although he discussed his ideas with several naturalists, he needed time for extensive research and his geological work had priority.^[5] He was writing up his theory in 1858 when Alfred Russel Wallace sent him an essay which described the same idea, prompting immediate joint publication of both of their theories.^[6]

His 1859 book On the Origin of Species established evolutionary descent with modification as the dominant scientific explanation of diversification in nature.^[1] He examined human evolution and sexual selection in The Descent of Man, and Selection in Relation to Sex, followed by The Expression of the Emotions in Man and Animals. His research on plants was published in a series of books, and in his final book, he examined earthworms and their effect on soil.^[7]

In recognition of Darwin’s pre-eminence, he was one of only five 19th-century UK non-royal personages to be honoured by a state funeral,^[8] and was buried in Westminster Abbey, close to John Herschel and Isaac Newton.^[9]

A GOOD PLACE FOR A HOLIDAY

VIENA:
I went to Viena in August 2006 with my family. We went by bas.
We stayed in four-star hotel. We visited the city by bus . We saw monuments, churvh and castles. I bought a teddy.
I recomaned the place because it is a beautiful place and beautiful castles and church.

MY FIRST DAY OF SECUNDARY SCHOOL

I was very shy, because I only knew some students in the class. I waited for the group list. I met my former friends and we walked to high school. We listened to the rules of Josep Mª Parra high school. I met my form tutor and my former friends.After that, the teacher took us to our classroom. Finaly, we went home and I had lunch. It was a funny day.

IMAGINE

Imagine

Imagine there's no heaven
It's easy if you try
No hell below us
Above us only sky
Imagine all the people
Living for today...
Imagine there's no countries
It isn't hard to do
Nothing to kill or die for
And no religion too
Imagine all the people
Living life in peace...

You may say I'm a dreamer
But I'm not the only one
I hope someday you'll join us
And the world will be as one

Imagine no possessions
I wonder if you can
No need for greed or hunger
A brotherhood of man
Imagine all the people
Sharing all the world...

You may say I'm a dreamer
But I'm not the only one
I hope someday you'll join us
And the world will live as one

MONDAY:
I get up at 7:30. Igo to school at 8:15, but i begin to study at 8:30.I leave high school at 14:30.
TUESDAY:
I get up at 7:30.I have breakfast at 7:45 and I go to school at 78:30.At 13:30, we leave the high school ,but we begin at 8:30.