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Showing posts from May, 2015

Palindrome Program with example

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A palindrome is a word, phrase, number, or other sequence of symbols or elements that reads the same forward as in the reverse order. The word "palindrome" was coined by the English writer Ben Jonson in the 17th century. It was derived from the Greek words palin, which means again and dromos, meaning direction. Few commonly used palindrome words in day to day life are: Racecar, Madam, pop, toot, eye, civic, level, peep and so on…. The longest commonly used word in English which is a palindrome is REDIVIDER. A chemical term DETARTRATED is two letters longer. The Finnish language has a couple of 25-letter palindromic word: SOLUTOMAATTIMITTAAMOTULOS which technically comprises of four words written in one. The word refers to a measurement laboratory for tomatoes. The second being SAIPPUAKUPPINIPPUKAUPPIAS which means soap cup trader. A palindrome is not necessarily a single word. It may be a phase comprising of two or more words. An example can be LIVE EVIL. Types of Palindrome:...

Auroras – the Northern and Southern Lights

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The bright dancing light show right up in the infinite sky has always fascinated the humans. Millions of people travel miles just to view the Natural Light Show in the sky. The Northern Lights and the Southern Lights, as the name suggests, are particularly associated with the polar regions. They are scientifically termed as 'Aurora Borealis' in the north and 'Aurora Australis' in the south due to the fact that it occurs in a band known as the auroral zone which lies in a belt of radius 2500 km centered on the magnetic north pole. In short they are caused mainly due to the collisions between electrically charged particles from the sun and the earth's atmosphere. This phenomena is not specific only to Earth but also to other planets and stars. They are visible close to the planet's magnetic poles. Types of Aurora: Depending upon the visibility of the lights to the naked eye, Auroras can be categorized as diffuse and discrete. Diffuse Aurora: It is an undistinguish...

Raspberry Pi - a open source hardware

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In my previous post I had given you a rough idea of what exactly is Open Source Hardware and explained the design and architecture of Audrino - one of such kinds. In this post I shall brief you on another example of the Open Source Hardware. The Raspberry Pi is a credit card-sized single-board computer developed in the UK by the Raspberry Pi Foundation. The m ain intention behind its development was to promote the training of basic computer science in schools to encourage students from all over the world to learn how computer works, how to program, how to manipulate the electronic world around them. Design: The Raspberry Pi uses a Broadcom BCM2835 system on a chip (SoC) It does not comprise a built-in storage device like a hard disk or solid-state drive, but it uses an external SD card for booting and persistent storage. The Raspberry Pi does not have an inbuilt real-time clock as well. So an OS must use a network time server, or ask the user for time information at boot time to get...

Open source hardware – The Arduino

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You might have heard of Open Source Hardware. Know more about it from the following post… Open Source Hardware is the term which means that the information about the hardware can be easily discerned. The open source hardware consists of physical artifacts of technology designed and offered by the open design movement. Both free and open source software (FOSS) as well as open source hardware is created by this open source culture movement and applies a like concept to a various modules and components being it the hardware design or the software that drives the hardware, the hardware description language (HDL) code etc. to be shared. These components are all released under the FOSS approach. Arduino: The Arduino is a single-board microcontroller which was introduced in 2005 under the open source culture movement. The Arduino platform was designed to make the application of interactive objects or environments more accessible with the intention to provide an economically inexpensive and ea...