Scientific application
Mystery of the wheel
Sticking to the wheel rim crawling a piece of colored paper and watching it move, you will see a strange phenomenon: When the piece of paper runs down to the lower part…
Scientific application
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Articles & explainers
1,485 published items in this category and its subcategories.
Scientific application
How to distinguish raw eggs, raw eggs?
If you want to solve a puzzle without having to break the egg, use mechanical knowledge to overcome this little difficulty. Place the egg to try on a plate and turn it a…
Scientific application
Water narcissus with alcohol
According to the experience of expert William Miller, the director of research programs Cornell flowering flowers, let the daffodils not grow up and then buckle every da…
Scientific application
Gel to keep water
Center for Research and Development of Radiation Technology (Thu Duc District, Ho Chi Minh City) said this unit has been widely sold on the market a kind of cassava star…
Scientific application
New casting method uses polyurethane
Currently, difficulties with thermoplastic in the rotational casting method have been overcome by a new rotary casting method, which uses polyurethane instead of other m…
Scientific application
Want to cool things, put them on or under ice?
To boil water, we put the kettle on top of the fire, not set next to the fire. So, how to cool an object with ice? Due to the habit, many people put things on ice
Scientific application
Without friction?
Thanks to friction, you can sit, walk and work easily; thanks to it, the pen and book rests on the table, without the table slipping on the floor, even though the person
Scientific application
The secret of raising black pearls
According to Tran Doan Thien, cultivating pearls is not simple. Pearl cultured clams must be over two years old, have been domesticated at the culture site, reaching a l…
Scientific application
Dry ice production from coal like?
At industrial kilns, people clean coal smoke, then use alkaline to remove CO2. After that, they heated to separate the gas from the alkaline solution, then compressed un…
Scientific application
Production of nylon - 6 environmental stems
Researchers at the University of Cambridge, UK, have found a method of synthesizing environmental stems to make caprolactam, precursors of nylon-6, from cyclohexanone.
Scientific application
Dried mushrooms protect cotton from pathogenic fungi
Penicillium chrysogenum (PEN) is a type of mold used in pharmaceutical production. Its dried filamentous fungus is a waste product of penicillin production and is also e…
Scientific application
When you see lightning, should stand or sit up?
If you have a rain or thunderstorm while in the middle of a wide and empty area, the best position for you is to kneel, your knees close together, and your hands on your…
Scientific application
How to prevent and treat papaya papaya disease
Papaya trees often suffer from pests and diseases such as rootworm nematode, red spider sucking and making yellow leaves, mealybugs and thrips suck and make plants and f…
Scientific application
Create blue roses with RNAi technique
The 2006 World Rose Conference was held in Osaka City from May 11-17, 2006. In the conference, the organizers presented many new and beautiful roses varieties. However,…
Scientific application
Experience making summer soybean plating
The planting of summer soybeans between two rice crops is usually very short, from May 25 to May 5. If planting summer soybean on the field of late rice harvest after 5/…