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Biogas can be produced from organic material (manure, plant waste, organic waste) using bacteria. Biogas is a mixture of methane and carbon dioxide; burning methane produces energy.
A transformer is a device used for converting the voltage of electric current.
The Northern white-breasted hedgehog rolls into a ball to protect itself.
Highly committed Japanese soldiers fought primarily at the Asian and Pacific theatres of the Second World War.
The Japanese Mitsubishi A6M, commonly known as 'Zero' to the Allies, was a legendary aircraft of the Second World War.
This animation demonstrates the process of star development for average and massive stars.
The V-1 flying bomb was an early pulse-jet-powered cruise missile developed in Nazi Germany and deployed in WWII.
The Tesla Model S is one of the first commercially available electric cars.
The process of the decay of unstable nuclei is called radioactivity.
The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars
A geisha is a traditional Japanese entertainer whose skills include performing classical music and dance.
This animation demonstrates how muscles and vertebrae move the head.
Radial engines are used primarily in aeroplanes and helicopters.
The Vought F4U Corsair radial-engined naval fighter was one of the most prominent American aircraft of the Second World War.
This animation presents levels of biological organisation from the level of the individual organism to the level of cells.
Adrenaline, also known as epinephrine, is a hormone produced in our body in stressful situations and plays an important role in the fight-or-flight response.
The fat-tailed scorpion is one of the world's most dangerous scorpions.
The animation presents the main air, water and land routes and transport hubs.
Scoliosis is a medical condition in which a person's spine has a lateral deviation.
The dromedary is an indispensable animal for inhabitants of the deserts.
The architecture of traditional Samoan family settlements reflect the unique culture of their inhabitants.
This Neoclassical structure is one of the best-known landmarks of Berlin and Germany.
The dodo is an extinct species of birds that used to be native to the island of Mauritius. It has become the symbol of extinction.