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Learn Online How to Code from University of British Columbia
This programming course takes a unique approach, as it focuses on learning a systematic programming method rather than a programming language. This practical approach will help you channel your creativity so that you can program well in any language.
You will learn techniques to:
Develop program requirements
Produce programs with consistent structure that are easy to modify later
Make your programs more reliable by building tests as an integral part of the programming process.
This course concludes with the design of a simple interactive game.
Learners who enroll in the Verified track will receive staff grading for the course project and increased interaction with the instructor and staff.
Most Popular Online Courses of MIT, Harvard University, IBM, University of California, ...
Micromasters®Programs |
MicroMasters programs are a series of graduate level courses from top universities designed to advance your career. They provide deep learning in a specific career field and are recognized by employers for their real job relevance. Students may apply to the university offering credit for the MicroMasters program certificate and, if accepted, can pursue an accelerated and less expensive Master’s Degree. Top Selling Programs: |
MicroBachelors®Programs |
MicroBachelors programs are built for adult learners looking to progress their career. Created by top universities and influenced by Fortune 1000 companies, edX’s MicroBachelors programs are the only path to a Bachelor’s degree that make you job-ready today and credentialed along the way. Top Selling Programs: |
Wednesday, February 10, 2021
How is a rainbow formed ? | Natural Hub
The Sun and a wet weather are the main components of the Rainbow. When the sunlight with its white light rays cross the water drops, the different colours that constitute the white light split up, to be scientifically accurate, the colours are refracted, thus forming a rainbow. White light is refracted through the drops of water which displays all the colours, but the human eye can only see one colour per drop, and that is why the height of the drops is a crucial determinant in the order of the colours which is always respected. The highest drops to the outside allow us to see red, while the lowest drops inward allow us to see purple. Between red and purple, we see the orange, yellow, green, blue and indigo colours in that order which makes the seven colours of the rainbow. The more the drops of water are big, the more the rainbow is colorful. Nature never ceases to amaze us, we need to uncover its mysteries that surround us...
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How much does a cloud weigh ? | Natural Hub
Clouds come in many forms and weights.
A weight that depends on three essential factors : size, temperature and the water content called density.
Scientists estimate that a small cloud can weigh more than 500 tons of water.
But what’s frightening is the clouds that cause thunder, they can reach a weight of 500,000 tons and even more in regions where rainfall is intense, such as tropical areas.
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How is rain formed ? | Natural Hub
The liquid precipitation from the sky, called rain, is the result of the evaporation of moisture that exists in nature and specifically in different sources of liquid such as seas, lakes, rivers, oceans...
Clouds form when evaporated water is condensed into liquid water. The presence of small particles in the air facilitates and helps the formation of droplets and that’s how a cloud is formed.
The inside of a cloud composed of a mixture of moist air and water droplets is the scene of several formations, droplets move at different speeds and multiple directions, sometimes colliding with each other, and that is how the droplet increase in size and bigger drops are formed.
Once, the drops are large enough, Earth's gravity takes over and the drops fall on the surface of the Earth as precipitation, namely rain.
The rain is a blessing from heaven, and especially after a dry season.
Our water supplies depend on precipitation and especially our crops.
Water is a source of life, we must take good care of it.
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Thousands of kilometers underground, it is very hot, so hot that the rock melts away from its organic state to its liquid state. The liqui...
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The importance of friends Having a weak circle of friends carries the same risk as smoking 15 cigarettes a day. Researchers suggest that t... -
In the universe, everything is in motion. The moon revolves around the earth, which itself revolves around the sun. An eclipse is the alig...