'প্রযুক্তিতে নতুনের ছোঁয়া'

Tower of Hanoi

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::Tower of Hanoi ::</h2>
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The Tower of Hanoi (also called the Tower of Brahma or Lucas' Tower,[1] and sometimes pluralized) is amathematical game or puzzle. It consists of three rods, and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top, thus making a conical shape</div>
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<img border="0" height="175" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBg-fJU4k1Ymag-1XXiOBqWCuXfLJv1eziu_z30ddH-EwbnfxO_cb-9zUBltWEps0CZOLNV51dg7TDJhxeioHcoPhvGPnm-aD9E7Q58YGCvEup6El7_bclH8cnUroHKyNOAuQhoeubvY4g/s1600/Tower_of_Hanoi.jpeg" width="400" />

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The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules:</div>
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<li style="margin-bottom: 0.1em;">Only one disk can be moved at a time.</li>
<li style="margin-bottom: 0.1em;">Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack i.e. a disk can only be moved if it is the uppermost disk on a stack.</li>
<li style="margin-bottom: 0.1em;">No disk may be placed on top of a smaller disk.</li>
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With three disks, the puzzle can be solved in seven moves. The minimum number of moves required to solve a Tower of Hanoi puzzle is 2<sup style="font-size: 11.1999998092651px; line-height: 1;"><i>n</i></sup> - 1, where <i>n</i> is the number of disks.</div>
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<img border="0" height="155" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjqshUUkCwTImb-YMwKx4BMlc_lKXy5KWFt-yS8Tw4s2851AUTB4brJmYs6FaU6mJYzIAQzJSS-UosSR7A-54e-h19bKN0l5xStWpIu3uXJZEx2vHzh2wNgFNT-SpUAuQZVih0rf7Z0Rt8w/s1600/300px-Tower_of_Hanoi_4.gif" width="400" />
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<pre class="brush:cpp;"> 
#include <iostream>
 using namespace std;
void towers(int, char, char, char);

int main()
{
    int num;

cout<<"Enter the number of disks : "<<endl;
    cin>>num;
    cout<<"The sequence of moves of the Tower of Hanoi are :\n"<<endl;
    towers(num, 'A', 'C', 'B');
    return 0;
}
void towers(int num, char A, char B, char C)
{
    if (num == 1)
    {
        cout<<"\nMove disk "<<num<<" from peg "<< A<<" to peg "<< B<<endl;
        return ;
    }
    towers(num - 1, A, C, B);

cout<<"Move disk "<< num <<" from peg "<< A<<" to peg "<<B;
    towers(num - 1, C, B, A);
}

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::Output ::</h2>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-rmgQBwiw0QNRhEWkJCuEoWtW7Gymuu7LEiv-S86nFQSZ3HlbuSwFHsdQypHsm4YAPOrLLQPJqBRiZhc9pDCLOJwTiBOT9vkAQm2WQn6W35AftuNP-QDv7YlwX0AtCtOP_DQ7klfBN5_9/s1600/Screenshot_4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="295" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-rmgQBwiw0QNRhEWkJCuEoWtW7Gymuu7LEiv-S86nFQSZ3HlbuSwFHsdQypHsm4YAPOrLLQPJqBRiZhc9pDCLOJwTiBOT9vkAQm2WQn6W35AftuNP-QDv7YlwX0AtCtOP_DQ7klfBN5_9/s1600/Screenshot_4.png" width="400" /></a></div>
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Tower of Hanoi

::Tower of Hanoi :: The Tower of Hanoi (also called the Tower of Brahma or Lucas' Tower,[1] and sometimes pluralized) is amathematical game or puzzle. It consists of three rods, and a number of disks…

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Amazing Water & Sound Experiment #2

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<iframe width="800" height="366" src="https://www.youtube.com/embed/uENITui5_jU" frameborder="0" allowfullscreen></iframe><br />
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<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">The effect that you are seeing can't be seen with the naked eye. The effect only works through the camera. However, there is a version of the project you can do where the effect would be visible with the naked eye. For that project, you'd have to use a strobe light.</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">For this project you'll need:</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">A powered speaker</span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Water source</span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Soft rubber hose</span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Tone generating software</span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">24 fps camera</span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Tape.</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Run the rubber hose down past the speaker so that the hose touches the speaker. Leave about 1 or 2 inches of the hose hanging past the bottom of the speaker. Secure the hose to the speaker with tape or whatever works best for you. The goal is to make sure the hose is touching the actual speaker so that when the speaker produces sound (vibrates) it will vibrate the hose.</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Set up your camera and switch it to 24 fps. The higher the shutter speed the better the results. But also keep in the mind that the higher your shutter speed, the more light you need. Run an audio cable from your computer to the speaker. Set your tone generating software to 24hz and hit play.Turn on the water. Now look through the camera and watch the magic begin. If you want the water to look like it's moving backward set the </span><br />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">frequency to 23hz. If you want to look like it's moving forward in slow motion set it to 25hz.</span></div>

Amazing Water & Sound Experiment #2

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Amazing Technology Invented By MIT - Tangible Media

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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/lvtfD_rJ2hE" width="560"></iframe><br />
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<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">At the MIT Media Lab, the Tangible Media Group believes the future of computing is tactile. Unveiled today, the inFORM is MIT's new scrying pool for imagining the interfaces of tomorrow. Almost like a table of living clay, the inFORM is a surface that three-dimensionally changes shape, allowing users to not only interact with digital content in meatspace, but even hold hands with a person hundreds of miles away. And that's only the beginning.</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Created by Daniel Leithinger and Sean Follmer and overseen by Professor Hiroshi Ishii, the technology behind the inFORM isn't that hard to understand. It's basically a fancy Pinscreen, one of those executive desk toys that allows you to create a rough 3-D model of an object by pressing it into a bed of flattened pins. With inFORM, each of those "pins" is connected to a motor controlled by a nearby laptop, which can not only move the pins to render digital content physically, but can also register real-life objects interacting with its surface thanks to the sensors of a hacked Microsoft Kinect.</span></div>

Amazing Technology Invented By MIT - Tangible Media

At the MIT Media Lab, the Tangible Media Group believes the future of computing is tactile. Unveiled today, the inFORM is MIT's new scrying pool for imagining the interfaces of tomorrow. Almost like …

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A 12-year-old app developer

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14-Year-Old Prodigy Programmer

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<iframe allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/DBXZWB_dNsw" width="560"></iframe><br />
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<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Fourteen-year-old programmer and software developer Santiago Gonzalez might just be the next Steve Jobs. He already has 15 iOS apps to his name and dreams of designing for Apple. At age 12, Santiago became a full-time college student and is on track to earn his bachelor's degree in computer science and electrical engineering by age 16. By 17, when most teenagers are excited to just have their driver's license, Santiago will have his masters degree. </span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">A self-professed computer nerd, Santiago is fluent in a dozen different programming languages and thousands of people have downloaded his apps for the Mac, iPhone and iPad.</span><br />
<br style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;" />
<span style="background-color: white; color: #333333; font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">Learn how Santiago's parents overcame a rigid school system that left their son intellectually stifled and depressed and instead followed an unconventional pathway to nurture his incredible gifts. Santiago's story is truly inspiring and his family's experience provides a powerful model for parents of exceptionally gifted children.</span><br />
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Android Phone কে Webcam হিসেবে ব্যবহার করুন

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আসসালামু আলাইকুম ,সবাই কেমন আছেন??  আশা করি আল্লাহ তালার রহমতে ভালই আছেন।অনেক দিন পর আজ আবার আরেকটা পোষ্ট দিচ্ছি আসলে সময়ের সল্পতার কারনে নিয়মিত পোষ্ট দেয়া হয়না। তো আর বেশি কথা না বলে কাজের কথায় আসা যাক আজ আমি দেখাবো কি ভাবে আমরা আমাদের এন্ড্রোয়েড ফোনকে ওয়েবক্যাম হিসেবে ব্যাবহার করতে পারি এতোক্ষনে হয়তো পোষ্টের শিরোনাম দেখা তা বুঝে গেছেন। তো শুরু করা যাক...<br />
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১)প্রথমে আপনাকে  গুগোল প্লে স্টোর <a href="https://play.google.com/store/apps/details?id=com.dev47apps.droidcam" target="_blank">DroidCam Wireless Webcam</a> নামের এই অ্যাপটি  ডাউনলোড করে নিতে হবে।<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><img border="0" src="http://i.imgur.com/3ab3rLx.png" /></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><a href="https://play.google.com/store/apps/details?id=com.dev47apps.droidcam" target="_blank">Download</a></td></tr>
</tbody></table>
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২)অতঃপর আপনাকে  <a href="http://files.dev47apps.net/DroidCam.Client.5.0.1.zip" target="_blank">এখান থেকে</a>  এই সফটও্যারটি ডাউনলোড করতে হবে এবং  পিসিতে ইনস্ট্যল দিতে হবে।<br />
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 ৩)এখন আপনার পিসি টি একবার রিস্টাট দিয়ে নিন ।<br />
 অতঃপর আপনার মোবাইলটি USB Cable দিয়ে পিসির সাথে যুক্ত করুন।আর আপনার মোবাইলের Setting >>Developer Option  এ গিয়ে USB debugging এ টিক দিয়ে দিন।<br />
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৪)এথন পিসিতে সফটওয়্যারটি ওপেন করুন এবং USB বাটন সিলেক্ট করুন তারপর Start  বাটনে ক্লিক করুন আর উপভোগ করুন ওয়েবক্যামের সাধ।<br />
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এছাড়াও আপনি ইচছা করলে Wifi ব্যবহার করেও ওয়ওবক্যাম ব্যবহার করতে পারেন তবে সেক্ষেত্রে আপনাকে  শুধু  Device  IP এর স্থানে আপনার মোবাইলে যে IP দেখাবে সেটা দিয়ে দিলেই হবে।<br />
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তাহলে আজ এ পর্যন্তই থাক, পরবর্তী আবার আসবো নতুন কিছু নিয়ে ইনশাল্লাহ। সে পর্যন্ত সবার সুস্থতা কামনা করি এখানেই বিদায় নিচ্ছি।। আল্লাহ হাফেজ ।।।<br />
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Android Phone কে Webcam হিসেবে ব্যবহার করুন

আসসালামু আলাইকুম ,সবাই কেমন আছেন?? আশা করি আল্লাহ তালার রহমতে ভালই আছেন।অনেক দিন পর আজ আবার আরেকটা পোষ্ট দিচ্ছি আসলে সময়ের সল্পতার কারনে নিয়মিত পোষ্ট দেয়া হয়না। তো আর বেশি কথা না বলে কাজের কথায় আ…

01 Mar 2015

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