First, the characteristics of solar energy

As a new solar energy and conventional energy sources such as fossil fuels (coal, oil, natural gas) and fuel, compared with many unmatched features.

1, solar energy directly or indirectly as energy, human play a very important role: One of the advantages is Read More…

Since the 20th century, 60’s, the solar satellite on call the shots on the power use, then gradually applied to the ground.

Solar cells in the late 20th century and the beginning of 30, 40 years into applied research. March 17, 1958 the United States launched the “Vanguard No. 1″ satellite, the first time single crystal silicon solar cells as the Read More…

Sea water is salty

Often swim into the sea of people, will find it in the pool or rivers and lakes in the difference. First of all, your body will feel more than easy to float in the pool; Secondly, the occasional drink into a sea water, will feel bitter and salty. Why is this? The original sea water in a large number of dissolved salts. The salty sea water, the Read More…

Solar water heater is a solar energy heating the water devices. Use of solar flat-plate collector, the water can be heated to 40-60 degrees, for families, institutions, corporate life, the production offers a bath, laundry, cooking and crafts, water use can also be used for the sun room, greenhouse, cooling and thermal power and other devices. Solar water heaters generally by the collectors, storage tanks, piping and auxiliary equipment loop composition. Read More…

It is used to dry materials, such as food crops, cash crops, leather fuel (energy) many, such as solar, coal, straw, fuelwood, methane. However, the most clean, most economical to the number of solar energy has. The general method of solar drying of crops is relatively simple, it is natural sunlight. This solar drying technology in a long time, still occupy an important position. The disadvantage is that a long drying cycle, drying yard Read More…

We can see the notebook market, the brand is more and more light there is more than a dozen well-known brand overseas, not to mention domestic, not too many brands, each brand has carved out for the market demand, many series, each series has carved out a large number of models, and really let – some new to notebook market, plan to buy a notebook endless friends difficult. Here some of the mainstream brands on the market to make a presentation to help you sort out our thinking, sure direction. Read More…

I found the computer more dust on the motherboard. Should I do? How to handle?

Many people bought a computer from up to retirement are not cleaned up their board, in fact clean-up board is not only the motherboard in order to maintain the surface clean, the power supply, memory and graphics cards and other internal plug-in also is important. Many motherboard failures are due to poor contact caused by motherboard slot, so the user is under the home environment Read More…

The logic of how to fix hard disk bad sectors?

Logical bad sectors can be said is a soft bad sectors, the disk using the Windows tool can easily be repaired. Specific method is: Go to “My Computer” window, right-click the disk partition bad sectors appear the icon, click the “Properties” menu item, open the disk drive’s “Properties” dialog box, switch to the “Tools” tab , click the “troubleshooting” combo box “Start Error-checking” button that appears “Error-checking disk” dialog box, select “Scan for and attempt recovery of bad sectors” check box, then click “OK” button can. Under Error-checking process 02) How Read More…

01) defragmenting the hard disk “failure”

Recently the use of Windows native defrag functions encounter a strange question, select the. Set by “analysis” button, it says “need to Defrag the hard disk” and then click the “order”, too – after the prompt “order complete”, but distribution of data on the hard disk does not happen any | any change (still very messy ), I cup defrag simply no doubt play a role, how is this going on, hard drive broken? Are there any other way to solve Read More…

Currently, countries in the world to promote the third generation mobile communication systems, while industrial, research focus has gradually Beyond 3G third generation of people after the> or the new generation of 4G mobile communication technology, wireless broadband communications technology, the research group aims to make wireless communications spectrum efficiency, capacity and rate of ten times or even a hundred times, which means that from now MBPS increased to the order of Gbps, which requires looking at the concepts and technology Read More…