1,185 search results
Animals at the extremes: hibernation and torpor
Nature & Environment

Animals at the extremes: hibernation and torpor

...C, many ectotherms and some mammals are characterized by their ability to depress their T b to below the freezing point of water. In either situation, physiological adaptations must include: thermoregulatory systems with control mechanisms different from, or with the ability to override, those which operate in the seasons when the animal is euthermic; biochemical and...
View course Animals at the extremes: hibernation and torpor
Level 2: Intermediate 14 hrs
Climate change and renewable energy
Nature & Environment

Climate change and renewable energy

...At what temperature would the Earth stabilise? If it had no atmosphere, its surface temperature can be calculated to be approximately −18 °C (minus 18 degrees Celsius). A similar calculation can be applied for our neighbouring planets: Venus, which is nearer to the Sun, should have a mean surface temperature of +50 °C, while for the more distant Mars the figure is...
View course Climate change and renewable energy
Level 1: Introductory 8 hrs
A Victorian Christmas: Victoria's Christmas
History & The Arts

A Victorian Christmas: Victoria's Christmas

...c.,&c. Drew. Wrote to dearest Uncle Leopold. Lehzengave me yesterday in my name, a pencil and an Annual to Col: Cavendish and the same to Mr. Cowper. Wrote my journal. At ½ p.7 we dined. Besides we 11 (Miss Davys having gone home), Lord Melbourne, Lord Surrey, and Col: Mrs, and Miss Cavendish dined here. Lord Melbourne led me in and I sat between him and Lord Falkland. I...
View article A Victorian Christmas: Victoria's Christmas
Article 5 mins
Straight talking collides with cyclical preferences
Society, Politics & Law

Straight talking collides with cyclical preferences

...C, I should logically also prefer A to C. If I don’t, someone who trades in A, B and C would soon have all my money. And if lots of others share my inconsistency, a market-based system won’t be as economically efficient or socially just as the theories suggest. Yet sometimes in practice, cyclical preference seems perfectly rational. When choosing among election...
View article Straight talking collides with cyclical preferences
Article 10 mins
Nouvelles mises au point
Languages

Nouvelles mises au point

...La Créolité Description of the late 20th Century literary movement, la créolité by one of its best-known authors, Patrick Chamoiseau. Science Museum: Introduction Explanation of the aims of the Cite des Sciences et de l'Industrie (Science and Industrial Museum) in Paris. Science Museum: children's zone Shows various exhibits in the children's area of the museum where...
View audio Nouvelles mises au point
Audio 33 mins
Cyflwyniad i efelychu digidol ym maes gofal iechyd
Health, Sports & Psychology

Cyflwyniad i efelychu digidol ym maes gofal iechyd

...c) Mae'n disodli'r angen am ddatblygiad proffesiynol parhaus. d) Mae'n cyfyngu ar fynediad at hyfforddiant i weithwyr gofal iechyd proffesiynol o bell. a. a) Mae'n lleihau'n uniongyrchol yr angen am brofiad ymarferol i gleifion. b. b) Mae'n gwella diogelwch cleifion yn sylweddol drwy leihau camgymeriadau yn ystod triniaethau yn y byd go iawn. c. c) Mae'n disodli'r angen...
View course Cyflwyniad i efelychu digidol ym maes gofal iechyd
Level 1: Introductory 4 hrs
How old is a mountain range?
Science, Maths & Technology

How old is a mountain range?

...la (Pronounced: shea-tang-la), Bhutan] Gangkhar Puensum from Cher-tang-la, Bhutan When we think about mountains we might think about them being constant, permanent features of our landscapes. However, through geology, we know this isn’t the case. The surface of our planet is forever changing and evolving, due to the movements of tectonic plates that make up our rocky...
View video How old is a mountain range?
Video 5 mins
Oxygen, blood and the body
Science, Maths & Technology

Oxygen, blood and the body

...C the solubility of oxygen in water is about 2 mmol dm−3, which is enough oxygen in solution to maintain the respiration rate of a unicellular organism. Thus, very small organisms living at temperatures of about 5 °C are able to obtain their oxygen requirement by passive diffusion. However, at 40 °C the solubility falls to around 1 mmol dm−3. But what about larger...
View activity Oxygen, blood and the body
Activity 10 mins