The respiratory system is composed of the nose or nasal cavity, the pharynx, the larynx, the trachea, the bronchi, and the lungs. The respiratory system's functions are gaseous exchange, inhaling oxygen and exhaling out carbon dioxide,...

Blood pressure (BP) is the force with which the heart pumps blood to maintain regular blood flow through the body. This force exerts pressure on the walls of the blood vessels, primarily the arteries. A study published in 1995 recorded...

Snowflakes come in a seemingly endless variety of shapes and sizes. Two factors play key roles in determining the shape of a snowflake: temperature and humidity. Kenneth Libbrecht, Professor of Physics at the California Institute of...

Fishes survive underwater pressure as they do not breathe through their lungs. Therefore, they do not have air pockets that can be compressed due to the high pressures. However, fish arent the only creatures found at such incredible...

Contrary to popular belief (as set by movies), cars are not very prone to explosions, and even a car that is on fire is very unlikely to explode. The necessary conditions for an explosion to take place are not met after a car experiences...

The circulatory system is a vast, complex network of blood vessels that serve as highways for transporting blood which contains life-sustaining molecules, such as nutrients, gasses, hormones and waste products, to the various organs of...

Travel Fatigue happens when your brain keeps your muscles engaged to account for small movements of the vehicle to ensure that your posture is properly maintained. These small movements cause your muscles to constantly work, which makes...

The satisfaction, relief, and even pleasure you feel after a good pooping session is due to the stimulation of two nerves: the pudendal nerve and the vagus nerve. Both have slightly different effects, but together, they contribute to...

Human fingernails are actually flattened versions of claws. All primates, including ancient ancestors of humans, had claws that supported their broad fingertips. The broad fingertips helped primates maintain a strong grip around objects,...

Water especially the one which flows through the pipe contains atmospheric gases, such as nitrogen and oxygen, dissolved in it. As the glass filled with water sits out for a few hours, its temperature rises slightly (water gets warmer),...

The curved shape of an aircraft wing, known as a winglet, helps to reduce the amount of drag created by the wingtip vortices. Since the 1980s, winglets have been a major part of future aircraft designs. For some old aircraft, winglets...

The crushed stones that line railroad tracks are collectively called track ballast. More specifically, the track ballast constitutes the trackbed upon which sleepers or railroad ties are laid. As you may have seen, these stones are...

The pressure that blood exerts against the walls of blood vessels. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...

The change of state from a gas to a liquid. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and...

A large amplitude compression wave, associated with a sharp change in pressure, temperature and density. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

A reversible reaction is one where the products of the initial reaction themselves react, producing a reverse reaction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...

The middle portion of the Earth's interior, between the outer crust and the core. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

At a set temperature, the volume of an ideal gas is inversely proportional to its absolute pressure. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

A unit of pressure widely used for expressing atmospheric pressure. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

Naturally occurring rock that has been transformed by heat and pressure in the Earth's crust. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

A saturated solution is one which contains as much solute as possible without changing any conditions such as temperature or pressure. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...

The temperature at which a liquid changes to a gas, at atmospheric pressure. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

The SI unit of electric potential or electromotive force. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

The transformation of rocks beneath the Earth's surface through heat and pressure, and the presence of dissolved minerals in hot groundwater. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...