杏吧原创

Humans

Avebury revisited: Archaeologists rethink ancient site’s true purpose

The antiquarian view of prehistoric monuments at Avebury has long dominated our perception of them. Archaeologists are now digging out the truth

New Zealand’s restoration ecology:

Health

An ill wind from Chernobyl

The legacy of Chernobyl: Five years after the worst accident in the history of civilian nuclear power, people in the Ukraine still live in restricted zones and daily run the risk of exposure to high levels of radiation

Making water work:

Making water work: Myth 1 – The Himalayan forest are everywhere being destroyed

Making water work:

The ultimate jigsaw puzzle: You can’t square a circle using a ruler and compass. But a pair of mathematical scissors will do the job by cutting the circle up into a huge but finite number of pieces

Mountain building under the microscope

Sixth-formers find their true vocation: Ministers are planning a big shake-up of post-16 education in Britain. After years of debate, there is to be a challenge to the academic ‘gold standard’ of A levels

Computer maps guide the surgeon: Doctors are using three-dimensional images produced by computers to help them to perform difficult and delicate operations on the skull

Humans

Sexual politics in the cell

Frustration on the factory farm: Animals kept in close confinement pace their cages or bite their bars because of frustration, not boredom. Changes in housing can reduce the problem

Euler and the Konigsberg bridges problem