Scientific application
Water pump by ... motorcycle engine
An engineer in Ho Chi Minh City has built a water pump that works by ... motorcycle engine! Located in the palm of the hand, the machine can pump water up to 12m high.
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Articles & explainers
9,109 published items in this category and its subcategories.
Scientific application
Why can you control the direction though?
When people parachuted from a height of several thousand meters down, there was no fixed down trajectory, but the athletes and the soldiers' soldiers could still control…
Scientific application
Planes get oxygen like?
In the early days of the invention of the aircraft, the air in the aircraft compartment originated from the atmosphere outside the aircraft compartment. Due to aircraft…
Scientific application
Why prohibit the use of electronic devices on airplanes?
In any country, when flying passengers are informed and banned from using any electronic products on the plane. Why must to do that? If while flying passengers use perso…
Scientific application
Anti-erosion for soil by ... polymer!
In addition to planting protective plants, improving water and drainage systems ... to reduce soil erosion, there is a method widely used in the world today - using poly…
Scientific application
Apricot planting techniques
Not too picky apricot tree cultivation. Evidence shows that soil types, sandy soil, mixed clay, alluvial soil, basalt red soil, even gravel and soils ... can still be pl…
Scientific application
Use satellites to detect opium
Recently, China has discovered and destroyed about 2.55 million poppy plants. Satellite has been used to detect opium. Public security departments under the Ministry of…
Scientific application
Shorten the running time thanks to ... polymer
The journey to run a train from Hanoi to Ho Chi Minh City in the past took 34 hours, but now it is shortened to 29 hours and still ensures a high level of safety, every…
Scientific application
Why not use two different ink brands?
Many people have the habit of changing to use a new ink often rinse the intestinal pen, then new ink in. Do this because they know that pouring and 2 different ink often…
Scientific application
Reaffirm the formula E = mc2
The latest experimental results reaffirm, Albert Einstein's famous formula: E = mc2 is accurate to ... 0.0000004%! Scientists at the Lavan University (Canada) and the Am…
Scientific application
How does the tsunami warning system work?
Seismographs can recognize earthquakes or volcanic eruptions - which can cause tsunamis. But only a few large earthquakes cause this size event, so the warning system ba…
Scientific application
How does air conditioner work?
Do you know how automatic air conditioners work? It is possible that you do not see this problem as important, but where air conditioning is needed, this automatic opera…
Scientific application
Why is gum used to shape hairstyles?
The barber wants to shape the hairstyle; Usually after drying the hair, spray on the hair that has dried 1 foam-like substance. They called it the gum shaping. After fin…
Scientific application
Producing electricity from exotic plants
Chinese scientists have developed a technology to produce electricity from the British small grass, an alien plant that is invading the country's ecosystem. Technology i…
Scientific application
Why can sunscreen protect against sunshine?
In sunscreen, in addition to oil and water like other normal creams, adding sunscreen can reflect ultraviolet rays. The earliest manufactured sunscreen, containing solid…