1,247 search results
The chemistry of fireworks
Science, Maths & Technology

The chemistry of fireworks

...simple ‘banger’ comprises the blue touchpaper that is impregnated with potassium nitrate, which smoulders when lit. This reaches a sulfurless priming powder, which is a mixture of potassium nitrate and charcoal. This then ignites a delay fuse, which burns noisily until the end is reached. Smoke, flame and hot particles are then showered onto the main gunpowder...
View article The chemistry of fireworks
Article 5 mins
What kind of Democrat are you?
Health, Sports & Psychology

What kind of Democrat are you?

...agree or disagree politically. About the i-Attune interactive The i-Attune interactive tool is designed for you, the public. Any data you provide is completely anonymous, ensuring your individual entries on the interactive and overall privacy is protected. The tool is simple, accessible, and built to up-skill you in political literacy and finding your democratic voice....
View activity What kind of Democrat are you?
Activity 20 mins
Nanotechnology: Good things come in small packages
Science, Maths & Technology

Nanotechnology: Good things come in small packages

...simple. These nano-carriers either interact with the cell surface because of their charge and surface properties that make them accumulate into cancer cells that are characterized by leaky blood vessels and not into healthy cells or by “receptor-mediated” interaction of nanoparticles with the cell surface. In the second approach, molecules that bind to specific...
View article Nanotechnology: Good things come in small packages
Article 10 mins
Classical Studies: festivals
History & The Arts

Classical Studies: festivals

...simple pleasures – music, dancing, food and drink. But it isn’t a modern concept. Academics within our Classical Studies discipline share their favourite ancient Greek and Roman festivals, the only difference being, that in antiquity, the gods were at the centre of everything. ...Learn about festivals of the ancient world, and the activities and rituals that took...
View video Classical Studies: festivals
Video 10 mins
Astronomy
Science, Maths & Technology

Astronomy

...Revealing the power source for stars and galactic jets. The Expanding Universe Russell Stannard uses simple analogies to explain difficult concepts. The expansion of space, and the cosmological red-shift, or doppler shift. Geometry of the Universe Russell Stannard explains why standard Euclidean geometry doesn't apply when considering the geometry of outer space....
View audio Astronomy
Audio 1 hr 21 mins
Introducing Health Sciences: Visual Impairment
Health, Sports & Psychology

Introducing Health Sciences: Visual Impairment

...simple interventions are not available in some poorer countries. The 15 video tracks in this album explore the impact of visual impairment and corrective treatments. Derek Child explains how he learned to adapt to losing his sight and the training that helps him stay mobile and independent. Experts from Contamac reveal the science behind lens production. The Good Health...
View audio Introducing Health Sciences: Visual Impairment
Audio 54 mins
Get started with OpenLearn
Get Started

Get started with OpenLearn

...simple. Click here if you still have questions about starting a free course. Statements of participation and digital badges Almost every course completed earns you a statement of participation, while our range of badged courses will also earn you a digital badge and continuing professional development points. Statements and badges will appear in the ‘My achievements’...
View article Get started with OpenLearn
Article 5 mins
Why did millions march against Trump?
Society, Politics & Law

Why did millions march against Trump?

...simple question. As a team of sociologists we have developed a multi-method, multi-site research project, Mobilizing Millions: Engendering Protest Across the Globe. We want to understand why people participate in a march of this scale, at a critical historical juncture in our political landscape. Within weeks of discussion of the first march, there were already...
View article Why did millions march against Trump?
Article 5 mins