413 search results
In the night sky: Orion
Science, Maths & Technology

In the night sky: Orion

...carbon and oxygen the next heavier elements in the periodic table. NARRATOR 1: As the star begins to fuse helium it creates more energy, and that causes the outer layers of the star to expand. One day our sun will grow so large it will swallow up the inner planets of the solar system out as far as the Earth. It will become a red giant. For the sun, this will be the...
View course In the night sky: Orion
Level 1: Introductory 24 hrs
Galaxies, stars and planets
Science, Maths & Technology

Galaxies, stars and planets

...Carbon 0.2 0.1 0.1 23 26 Iron 0.1 32 5.1 10 Neon 0.1 12 Magnesium 0.1 15 2.1 7 Nitrogen 0.1 2.6 14 Silicon 0.1 16 28 16 Sulfur 0.6 0.1 0.2 28 Nickel 1.8 20 Calcium 1.7 3.7 1.4 13 Aluminium 1.6 8.1 11 Sodium 0.2 2.8 0.1 24 Chromium 0.5 15 Phosphorus 0.1 0.1 1.1 25 Manganese 0.2 0.1 17 Chlorine 0.1 0.1 27 Cobalt 0.1 19 Potassium 2.6 0.2 22 Titanium 0.1 0.6 Footnotes *...
View course Galaxies, stars and planets
Level 1: Introductory 8 hrs
The frozen planet
Nature & Environment

The frozen planet

...carbon, hydrogen and oxygen atoms, and breathe in air which contains mostly nitrogen atoms. Box 3 The chemical elements Every object on Earth is made of chemical elements. Most elements were created in the nuclear furnaces of exploding stars in the early Universe, so you and the Earth around us are made literally from stardust. There are 109 named elements, of which 92...
View course The frozen planet
Level 1: Introductory 7 hrs
Returning to STEM Badge icon
Science, Maths & Technology

Returning to STEM

...footprint - The previous two sections invited you to focus on personal reflection. This section looks at the identity you are already presenting to the world. Throughout the course you will need to make decisions about what aspects of your life and experience you include or exclude in your applications and CV, and how best to describe the things you have achieved so far....
View course Returning to STEM
Level 3: Advanced 24 hrs
Environment: understanding atmospheric and ocean flows
Nature & Environment

Environment: understanding atmospheric and ocean flows

...carbon dating shows that some are several thousand years old...Environment: understanding atmospheric and ocean flows: 2.3.1 Nansen and the voyage of the Fram - Wood on the shores of Svalbard and East Greenland caused confusion to the first explorers. But when wreckage from a ship called the Jeanette was found on the coast of East Greenland in the late 19th century, the...
View course Environment: understanding atmospheric and ocean flows
Level 1: Introductory 10 hrs
Humphry Davy, laughing gas and the era of self-experimentation
History & The Arts

Humphry Davy, laughing gas and the era of self-experimentation

...hydrogen and carbon dioxide – which left him comatose, the air-bag fortunately falling from his lips. On recovering, he ‘faintly articulated: ‘I do not think I shall die’’. By the end of the summer, the energy of the trials was dissipating: for most of the volunteers, the novelty of the experience wore off after a few sessions. Davy’s...
View article Humphry Davy, laughing gas and the era of self-experimentation
Article 5 mins
Sustainable innovations in enterprises
Money & Business

Sustainable innovations in enterprises

...carbon emissions, uses a quarter of the chemicals produced worldwide each year, and comes just after agriculture in the amount of water it consumes. Those soft cottons that you love, they're almost as bad as the man-made fibres we now tut over because of their petrochemicals. It takes 20,000 litres of water to create one pair of jeans and a single t-shirt. And then we've...
View course Sustainable innovations in enterprises
Level 1: Introductory 9 hrs
The Legacy of Nuclear Power: Part 1
Nature & Environment

The Legacy of Nuclear Power: Part 1

...footprint hidden within vast forests. And you know, it’s interesting to associate these sorts of landscapes with the nuclear question. It’s that sort of menace and that sort of threat and at the same time, there's a population there that is able to mobilise and oppose in the same way as in, I mean Hanford has been transformed. There's a city of a quarter of a million...
View audio The Legacy of Nuclear Power: Part 1
Audio 10 mins