To step up and upgrade Win10 after July 29 would have to spend 800 yuan

Engadget Chinese Station Report July 25

If you have always wanted to upgrade to Microsoft's Windows 10 system for free, but you haven’t done anything yet, then you need to take time now. From July 29, the first anniversary of the release of Windows 10, Microsoft will stop the free upgrade strategy for Windows 10 systems. Microsoft said that at the first anniversary of the release of Windows 10, it will bring a substantial upgrade, including the new Cortana voice commands and Windows/Xbox One combined application store.

On the day of the release of Windows 10, Microsoft stated that it would provide users with a one-year free upgrade cycle. Therefore, if you want to use Windows 10 after July 29, you will have to pay an additional 119 US dollars (about 795 yuan). . So if you always have the idea of ​​upgrading Windows 10, but still hesitating, then the time you have left is really not much. (Author: Mariella Moon compilation: Bear)

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Poly Solar Panel

Advantages of Polycrystalline Solar Panels

The process used to make polycrystalline silicon is simpler and costs less. The amount of waste is also less on the panel itself because of the way the silicon wafers are applied to the panel.


What are polycrystalline solar panels? PolyCrystalline or MultiCrystalline solar panels are solar panels that consist of several crystals of silicon in a single PV cell. Several fragments of silicon are melted together to form the wafers of polycrystalline solar panels.


Polycrystalline solar panels cost less and have a more simple manufacturing process. Polycrystalline solar panels tend to have a lower heat tolerance. There is less wastage of silicon while manufacturing these panels.


How do polycrystalline solar panels work?
They have a square shape and a shining blue hue as they are made up of several polycrystalline silicon. As there are multiple silicon crystals in each cell, polycrystalline panels allow little movement of electrons inside the cells. These solar panels absorb energy from the sun and convert it into electricity.

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