162 search results
David Allen - Earth in Vision
Nature & Environment

David Allen - Earth in Vision

...DNA, and the artists of storytelling almost always throw out that theory, the idea that that theory can be quantified, in horror; but the theorists who study it say they conform to it in perfection, they just do it innately. So I think, we know story is huge, it’s just there is also an incredibly fragmented media landscape now where I think probably that language is...
View video David Allen - Earth in Vision
Video 30 mins
What chemical compounds might be present in drinking water?
Science, Maths & Technology

What chemical compounds might be present in drinking water?

...DNA) is a polymer of alternating phosphate and deoxyribose groups. In this section you will see that phosphorus forms firstly relatively simple anions such as phosphate, PO43-. Then you will explore the chemistry of polyphosphates such as adenosine triphosphate (ATP) that was mentioned in Section 2.1.1...What chemical compounds might be present in drinking water?: 3.1...
View course What chemical compounds might be present in drinking water?
Level 2: Intermediate 6 hrs
What is a scientific model?
Science, Maths & Technology

What is a scientific model?

...DNA of ancient farmers, we had the melting of the Antarctic ice sheets, and today we’ve got Nick Reynard modelling floods in Cumbria. So we’ve asked a few of our guests to tell us what they mean when they use scientific models. Andrew Ponson and Carole Haswell told me what models are to astrophysicists. ANDREW PONSON: I would say a model is a set of ideas we have...
View audio What is a scientific model?
Audio 5 mins
Introduction to Planetary Protection
Science, Maths & Technology

Introduction to Planetary Protection

...DNA surrounded by proteins. They can reproduce, but not independent of a host, i.e. they are not self-sustaining. They can’t make their own energy, but they can adapt to their environment. Most biologists do not consider them to be ‘life’, but this is subject to debate! A salt crystal forms when salty water evaporates, and as more water evaporates, the salt crystal...
View course Introduction to Planetary Protection
Level 1: Introductory 5 hrs
Scales in space and time
Science, Maths & Technology

Scales in space and time

...DNA of existing plants to discover how closely oak trees in different parts of the country are related to each other. This is because DNA is passed on from generation to generation. Ancient pollen and extant DNA are powerful tools for looking at ancient ecology. Between 23 000 and 15 000 years ago, ice sheets and glaciers covered much of the British Isles and sea level...
View course Scales in space and time
Level 1: Introductory 12 hrs
Rio 2016: Green pools, drug cheats, sexism and nationality - A short reading list
Health, Sports & Psychology

Rio 2016: Green pools, drug cheats, sexism and nationality - A short reading list

...DNA or blood evidence), for instance, reliable eyewitness testimony, or evidence of motive and opportunity, among other things. The reason for this is that the punishment for criminal acts is typically severe: deprivation of basic liberties, such as freedom of movement and association. Imprisonment deprives a person of a number of basic liberties. There’s no way the...
View article Rio 2016: Green pools, drug cheats, sexism and nationality - A short reading list
Article 5 mins
Basic science: understanding numbers
Science, Maths & Technology

Basic science: understanding numbers

...DNA compared with the number of genes in fruit fly DNA, or yeast DNA? The number of genes doesn’t describe everything, it’s their interactions which produce the final result, but it is a start. Are you wondering about that? How to test it? What numbers might mean? Now, you’re a scientist...Week 1: Why does science need numbers?: 1.4 How do numbers help test...
View course Basic science: understanding numbers
Level 1: Introductory 12 hrs
Forensic science and fingerprints
Health, Sports & Psychology

Forensic science and fingerprints

...DNA matching. You will learn that fingerprint evidence is usually very sound and is one of the most reliable forms of identification, though there are challenges to its use and human errors can be made. However, these problems and errors do need to be put in the context of the outstanding history of success in using fingerprints in individualisation. Perhaps the earliest...
View course Forensic science and fingerprints
Level 1: Introductory 10 hrs