How do scientists plan to get astronauts to Mars when space radiation is so strong? What can be done about it? Astrum Answers!

In this morning's lesson on LC circuits, we derive equations for charge, current, and energy as functions of time. Exploring the total potential energy in the circuit, we use the chain rule to find the second derivative of charge with...

Dive into the intricate world of LC circuits with our latest video! Watch as we break down the dynamic graphs and components of inductor-capacitor circuits, exploring charge, current, and energy equations. Our animation vividly...

If a nuke exploded in space, gamma rays and X-rays would be emitted and would expand to light up the sky. On the surface of the planet, auroras of light would be seen for thousands of miles within minutes of the blast. The explosion...

Neutron stars are formed from the core of some starrs. Neutron stars generally have a radius of only around 12 km. With masses exceeding 1.4 times that of the Sun, these are some of the densest objects in the Universe. A tablespoonful of...

The true geographic North Pole is bereft of vegetation. Trees need soil to flourish. As the North Pole is composed of random chunks of ice in close proximity, there is no way that growth can occur. Then there are months of darkness,...

There are many planets in the universe, but very few of them have qualities to support life Taking one celestial body at a time and determining whether it supports life would be slow and inefficient. So, astronomers look for certain...

A field of force produced by a magnetic object or a changing electrical field.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

An instrument that analyses characteristics of atoms and molecules, including their mass.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Also known as the Northern or Southern Lights. Natural displays of light in the polar regions, clearly visible in the night sky.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds...

The outer atmosphere of the sun. A thin, extremely hot plasma - over a million degrees celsius, compared to around 6000 degrees for the visible surface.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined...

A device used to change the voltage of an alternating current.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A substance that is able to flow freely.
<

br/>

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 force experienced by a current-carrying wire when placed within a magnetic field.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A unique combination of sunspots, solar flares and magnetic fields combine to create a visual spectacle on Earth. But what are the forces at work? Physics - Our Solar System - Learning Points. Natural light displays known as Aurora...

Where does Earth fit into the Solar System and what makes this planet unique? Physics - Our Solar System - Learning Points. Earth is the third planet from the Sun. 71% of Earth is covered in liquid water, which is vital for life. Earth...

How do electromagnets differ from permanent magnets, and what are they used for? Physics - Electricity And Circuits - Learning Points. An electromagnet is created by running an electrical current through a coil of wire. An electromagnet...

The generation of a voltage in a conductor when placed within a changing magnetic field.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Unreachable by man, scientists have developed a complex experiment to demonstrate the heat and pressure at the centre of the Earth. Earth Science - Geology - Learning Points. The Earth's core is a dense ball of iron and nickel. To...

Discover how dying stars transform into black holes, areas of mass so great that even light can't escape. Physics - Universe - Learning Points. When a star dies, it collapses and condenses into a single point, known as a singularity. The...

A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points....

Power loss affects electricity supply, especially to homes far from power stations. Why is power lost, and how is electricity effectively transported over long distances? Physics - Electricity And Circuits - Learning Points. Direct...

MRI machines are now commonly used in hospitals to build amazing images of inside our bodies. Discover how magnets allow them to do this. Physics - Electricity And Circuits - Learning Points. MRI machines use magnets to take images of...

Billions of years ago, Earth collided with its twin planet Theia. The impact and resulting geophysical changes prepared Earth for complex life. Physics - Our Solar System - Learning Points. 4 billion years ago Earth had a twin called...