'When and how was the Earth formed ?' This is one question which scientists around the world are still trying to find out more and more about. The majority of scientists now believe that the Earth was created from the Sun. In the ancient past a cloud of dust and gases separated from the Sun. It was a part of this cloud which eventually formed the Earth. On cooling down, our mountains and valleys were formed. The chemical changes in the original gases brought about the formation of water and the creation of the oceans.
Beneath the surface of the Earth are hidden diverse kinds of mineral wealth. On digging beneath the surface we can unearth different kinds of metals like iron, copper, gold and silver, as also rock-like substances like diamonds, emeralds, topaz and garnets. These metals and minerals are very useful. For example most of our fuel and energy comes from natural gas and petroleum both of which are found only beneath the Earth.
We could have hardly reached the present level of our civilization without using this hidden wealth of the planet. Our lives would have been tremendously more difficult and man's development would have stopped long ago had he not been able to utilize these resources of his Earth.
The Scottish people are great fighters and folk feared that when the king died without an heir, there would be endless wars as one lord after the other would try to seize the throne.
The king's courtiers spoke to him and said, “Sire, we are all mortals. For the sake of your subjects, will you choose a young man to inherit the throne, for the unhappy day when you are taken from us?”
In the animal world there are many different colours. There are orange and brown giraffes, white polar bears, blue beetles and red and yellow birds. But in the plant world, the Green Kingdom, the leaves of nearly all plants are just one colour - green. Why?
The biggest difference between plants and animals is that animals eat other things for their food and plants don't. Plants are able to make their own food. Leaves have a wonderful substance inside them that makes food out of air and water, with the help of sunshine. This substance is called chlorophyll. And chlorophyll is green.
So a healthy leaf is green because it is filled with chlorophyll. Leaves which don't get enough light turn pale and yellowish because the chlorophyll can't work without sunlight.
She helped the Director set up the tables. She played Ping-Pong and checkers. She sang songs. She wrote letters to friends in Hong Kong.
All in Chinese.
Dear Yee Fong, she wrote in Chinese. How would you like me to visit you? She laughed as she finished the letter. Then she had to write the address in English
Silly post office in New York! she thought. Why can't they read Chinese?
Hampty Dumpty sat on wall,
Humpty Dumpty had a great fall.
All the king's horse, and all the king's men.
Couldn't put Humpty, together once again.
There are very few of these beautiful birds left alive in the forests of New Guinea - a country north of Australia.
They have bright blue feathers and two long tail feathers which are prized by hunters. The tribal people of New Guinea wear the feathers in their head-dresses. People in Europe used to wear their feathers, too. There are many other kinds of a bird of paradise in New Guinea also in danger from feather-hunters.
The time came for Mom's operation. Only Daddo went with her to the hospital.
We got to do something fun! We went to our cousin's house for a couple of days. We played games, watched movies, told stories, and had fun!
When we came home we rushed to greet Mom.
“Hold on,” Mom said. “Hug me gently." She smiled.
Learn how to program by diving into the R language, and then use your newfound skills to solve practical data science problems. With this book, you’ll learn how to load data, assemble and disassemble data objects, navigate R’s environment system, write your own functions, and use all of R’s programming tools.
RStudio Master Instructor Garrett Grolemund not only teaches you how to program, but also shows you how to get more from R than just visualizing and modeling data. You’ll gain valuable programming skills and support your work as a data scientist at the same time.
Until recently, many people thought big data was a passing fad. "Data science" was an enigmatic term. Today, big data is taken seriously, and data science is considered downright sexy. With this anthology of reports from award-winning journalist Mike Barlow, you’ll appreciate how data science is fundamentally altering our world, for better and for worse.
Barlow paints a picture of the emerging data space in broad strokes. From new techniques and tools to the use of data for social good, you’ll find out how far data science reaches.
With this anthology, you’ll learn how:
An object-oriented approach to Python web development gives you a much more fully-realised experience of the language. The flexibility and power of Python, combined with the improvements in design, coding and software maintenance that object-oriented programming allows, is built to respond to the challenges of increasingly more complex and data-intensive application development, making difficult tasks much more manageable. This book has been designed to make this sophisticated approach to programming easier to learn quickly, providing you with a clear and coherent learning journey.
Beginning by looking at a range of design patterns for the _init_() method, you will learn how to effectively use a range of Python’s special methods to create classes that integrate with Python’s built-in features, and find detailed explorations and demonstrations of callables and contexts, containers and collections, numbers, and decorators and mixins, with a focus on best practices for effective and successful design. The book also features information that demonstrates how to create persistent objects using JSON, YAML, Pickle, CSV, XML, Shelve and SQL and shows you how to transmit objects between processes. Going further into OOP, you’ll find expert information on logging, warnings, unit testing as well as working with the command line.
PHP is experiencing a renaissance, though it may be difficult to tell with all of the outdated PHP tutorials online. With this practical guide, you’ll learn how PHP has become a full-featured, mature language with object-orientation, namespaces, and a growing collection of reusable component libraries.
Author Josh Lockhart—creator of PHP The Right Way, a popular initiative to encourage PHP best practices—reveals these new language features in action. You’ll learn best practices for application architecture and planning, databases, security, testing, debugging, and deployment. If you have a basic understanding of PHP and want to bolster your skills, this is your book.
This practical book provides a highly accessible introduction to natural language processing, the field that supports a variety of language technologies, from predictive text and email filtering to automatic summarization and translation. With it, you'll learn how to write Python programs that work with large collections of unstructured text. You'll access richly annotated datasets using a comprehensive range of linguistic data structures, and you'll understand the main algorithms for analyzing the content and structure of written communication.
OCA, Oracle Certified Associate Java SE 8 Programmer I Study Guide, Exam 1Z0-808 is a comprehensive study guide for those taking the Oracle Certified Associate Java SE 8 Programmer I exam (1Z0-808). With complete coverage of 100% of the exam objectives, this book provides everything you need to know to confidently take the exam. The release of Java 8 brought the language's biggest changes to date, and for the first time, candidates are required to learn functional programming to pass the exam. This study guide has you covered, with thorough functional programming explanation and information on all key topic areas Java programmers need to know. You'll cover Java inside and out, and learn how to apply it efficiently and effectively to create solutions applicable to real-world scenarios.
