Videos
Video: Dragon taps appeared in Tibet after half a century
For the first time in more than 50 years,
Videos
Watch videos about science, nature, animals, engineering, technology and unusual events, with explanations that add context to what you see.
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Articles & explainers
1,667 published items in this category and its subcategories.
Videos
Video: Harmful to the environment of solar cells
The production of solar cells produces NF3 greenhouse gases that can cause climate change.
Videos
Video: The world's largest firefighting aircraft, Boeing 737
China has successfully built and tested the world's largest firefighter, approximately the size of a Boeing 737 and 37m long.
Videos
Video: Swiss factory specializes in exhaust fumes for resale
The Climeworks factory in Switzerland specializes in extracting CO2 from the air to provide a nearby greenhouse.
Videos
Video: Two systems dominate the 60-year cycle of 12 animals
The 60-year cycle of 12 animals in the popular lunar calendar in Asian countries is the number of different combinations of two systems Can and Chi.
Videos
Video: The journey to listen to the heart of the Earth mother
Sound biologist Gordon Hempton spent 35 years recording natural sounds in space, according to National Geographic.
Videos
The power of the world's largest water gun
A former NASA engineer built the world's largest water gun, able to fire a jet of water at 437 km / h.
Videos
Video: See the horizontal vertical surface of the unique 'immortal' creature on Earth
Through many experiments with different natural or artificial environments, scientists have concluded that
Videos
Video: Learn about the most powerful crocodiles in history
Crocodile is a reptile famous for its aggression and danger not only because of its large size but also because of its scary jaws.
Videos
Video: ISS recorded a rare auroral male phenomenon
The International Space Station reverts back to the unimaginable male phenomenon when flying to the South Pacific waters.
Videos
Video: How to make extremely simple anti-theft alarm bell
No need to invest money to buy expensive Door Alarm burglar alarms, you can make at home with familiar materials.
Videos
Video: Instructions on how to build military aircraft
This video will show you how to make Boeing CH47 - Chinook aircraft at home. The main material is a one-way motor and cardboard.
Videos
Video: Mechanism to form itching sensation in humans
We have itching dozens of times every day for many reasons such as allergies, weather, illness or insect bites.
Videos
Video: 6 tips with pencil sharpeners you may not know
In everyone's mind, pencil sharpening only has one function: cutting blunt pencils or breaking them right? In fact it is not.
Videos
Video: Instructions for making mini refrigerators for home use
Just need foam boxes, thermoelectric pumps, colored plastic sheets ... you can make 1 small refrigerator for personal use electric current 12v 5A.