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Why is the air conditioner not cool enough when it is hot?
The North is in the hot, sunny days. According to weather forecast information, many areas in Hanoi in recent days amounted to more than 39-41 degrees C.
Economical
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Articles about Economical
14 published items.
Discover science
The brain also has an energy saving mode
To ensure uninterrupted operation, when an emergency occurs, the brain switches itself to energy saving mode.
Space science
The idea of launching microscopic satellites to find aliens
Scientists believe that using micro satellites is more efficient and economical in finding planets that have life outside of Earth.
Space science
Building power plants in space?
Building a solar power plant on Earth orbit will be the most efficient and economical option in the next 30 years, according to research by an international team of scie…
Biology
Great biofuel from algae
Hundreds of companies and laboratories around the world are racing aggressively to find an economical way to process
Biology
The thin layer of solar cells provides a more economical green energy source
Scientists are studying new ways to harness the sun's rays, and ultimately make it less expensive for solar users.
Scientific application
Saving irrigation technology - Drought response solution
Under severe drought conditions, irrigation water resources are becoming exhausted and more valuable than ever, especially in the region.
Environment
Australia's simple waste treatment is both effective and economical
Waste pollution is currently one of the issues seriously affecting the environment. It not only endangers people but also destroys wildlife ecosystems.
Environment
The reason why more than 2 billion people are about to have no clean water to use
After examining more than 421 river basins around the world, the research team focused on 97 areas that provide clean water to more than 2 billion people worldwide.
Environment
Optimal materials from nature
Using the materials available in nature will reduce the processing and processing stages, more economical and not polluting the environment.
Photo library
The most unique refrigerators in the world
Along with the development of life, the refrigerator has become a familiar item for most families. However, now the refrigerators are not only a place to preserve family…
Science Events
Vietnam responded to the campaign to make the world cleaner
Limiting the use of plastic bags, economical use of raw materials, planting more trees are the activities that Vietnam will implement to protect the environment.
Science invention
Secondary students invent 500 times
A Chinese middle school student has invented a very economical paper that can be used again and again about 500 times.
New technology
4 farm-saving solutions for growing organic green vegetables
Below are four economical farming area solutions that have been widely commercialized in some countries around the world.