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Monthly Archives:August 2019

Computer Recycling

Computer recycling, electronic recycling or e-waste recycling is the disassembly and separation of components and raw materials of waste electronics.


Electronic recycling can be challenging because discarded electronic products are complex devices manufactured from varying proportions of glass, metal, electronic boards and plastic. Then, these materials needs to be processed and separated into clean boxes that can be used to make new products.


A first step to recycle a computer is to collect and to sort the computers by item type. After sorting, the computer parts can be tested for possibility of reuse. If is still not functional or is in a fairly bad working condition, and the parts are superannuated, the computer is likely to be recycled.


The next step is manual disassembly. The basic computer components that are disassembled generally include: speakers, sound and graphic cards, circuit board, DVD drives, hard disks, and keyboard among other parts. For example, a Computer System Unit (CSU) to be recycled, it needs to be unscrewed by the computer case and computer chassis, then, by turn, to remove its components (optical drive, fan, hard disk drive, motherboard, expansion slots, connectors, power supply, fan, CPU).

Then, it comes data destruction. Step, in which all hard drives and processors will be damaged to ensure that all the data in the hard drive will not be used anymore.The last step is to separate all components into material composition. For instance, plastic shells of the computers, metals, circuit boards and wires are broken down separately.

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Auschwitz Birkenau

Our last destination was Auschwitz Birkenau.

As soon as we arrived, we could saw the places where tens of thousands of people had to survive the persecutions of Nazis. We saw where and how they slept, their bathrooms, where they ate, how they died etc. We could walk through the camp and see the places where they lived.

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Trip To Kraków

The second city was Kraków, former capital of Poland.

Here, we visited Wawel Royal Castle, Wawel Dragon (statue) and Kraków Central Square.

In Wawel Palace, we visited the garden and its surrounding. As we passed the gate, we were “greeted” on the right by the statue of Pope John Paul II, and on the left by St. Stanislaus and St. Wenceslaus Cathedral. We saw the Cathedral which is famous for its three towers and the eight bells.

We walked through the courtyard of the castle, through the platform next to the “tower of thieves”. From this platform, we could admire the Vistula River, with its beautiful landscape.

Coming out the castle, there was a massive statue of a dragon which usually breathes fire, Wawel Dragon. It is the symbol of the city and a monument at the foot of the Wawel Hill in Kraków.

Then, we went to the Kraków Central Square. Here. We took a walk to see the architecture of the buildings and we spent time taking pictures.

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Jasna Góra

We decided to have an intermediate destination until we arrived to Krakow. We chose to go to Jasna Góra Monastery (a famous Polish shrine to the Virgin Mary).

We had the opportunity to see the main nave of the basilica, the interior of the monastery, its surroundings, mosaics, statues and paintings of important events in a pilgrim’s life.

The path with all the flags around the world impressed us for its unity with all the pilgrims that are coming every time to visit this spiritual place.

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Trip To Warsaw

Another weekend, another trip.

For this weekend, we decided to go on a trip through Poland to visit two of the biggest cities, for three days and two nights. The two cities were Warsaw and Kraków.

The total distance for the trip was over 1.300 km; a long distance, but it was worth it.

Our first destination was the capital of Poland, Warsaw.

Here, we visited Palace of Culture and Science, The Saxon Garden, Royal Castle and Warsaw Old Town.

The Palace of Culture and Science (the tallest building in Poland) offered us the chance to see exhibitions and visit the Theatre Studio, Gallery Studio and Theatre Dramatic, places with beautiful art style.

In The Saxon Garden we saw the Rococo sculptures, the fountain and the lake. It was a great place to relax and admire the surroundings, especially the sunset.

In The Royal Castle we could saw Knight’s Room, Canaletto Room, The Old Audience Chamber and others. The castle is a great place to see the early Baroque architectural style and to learn more about the Polish monarchs.

In Warsaw Old Town we had the pleasure to see more buildings with specific architectures and to meet new people.

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New switches

Today, we have found some switches and decided to separate the good ones from the broken switches and we tried to repair the bad ones. To do so, mr. Polkowski showed us how to do it.

So, we took the switches that were broken. We melted the screw by soldering gun and took out the broken switches. Then, we replaced the switches with new ones and soldered them back.

Here are pictures of the repaired switches:

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XCAM 1080PHA

Last week, we had the opportunity to work with a set of very modern and very efficient equipment, namely the XCAM1080PHA C-mount camera and the SZM-45B2 stereo microscope.

With the help of the microscope, we were able to visualize electronic components, and using a HDMI cable we connected the camera to a display to visualize the enhanced image. Using the interface, we could record or take screenshots of the inspected element.

It was a captivating activity that will be useful to us in the career we will decide to pursue.

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Pol’and’Rock Festival Poland 2019

Last week, one of our Polish friends told us about a rock festival which will be held in Kostrzyn nad Odrą, Poland. This event is called Pol’and’Rock Festival Poland (formerly known as Woodstock Festival Poland). He told us that if we want to go, we can organize a trip for 2 days to this festival. So, all of us decided that we should

We left at 2 PM and we have arrived almost in time to see Lordi, a Finnish hard rock/heavy metal band popular in Poland and the main reason for which we wanted to go. When we heard their hit song “Hard Rock Hallelujah”, we begun humming and jumping like everybody.

After the concert, we went to eat. We had the chance to eat pierogi (a well-known dish in Poland), we can say they are really amazing and when the opportunity will arise, we will make sure to try them again. For the night, we set up the tents and got some rest to be ready for the next morning when we could buy souvenirs from this festival.

We hope that we can come again for this festival in the next years.

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Broken laptop

Today we had the occasion to repair a laptop. We had to find the problem and fix it.

We disassembled the laptop, looked for possible problems and realized the display was not working. We decided that the screen should be changed. In order to do that though, we had to search the compatibility between screen and laptop. Once we found a compatible one, we proceeded to assemble it back. After that we made sure the laptop was working.

It was an interesting task and very useful experience.

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