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...family trees. America has had a great deal of immigration and when you track most family trees, there will be immigration records somewhere along the way. People arriving in America spoke all kinds of languages. Their names were recorded by people who didn't speak the newcomers' language and gave them various different spellings. This makes compiling a family ......

...tree! By studying it you will be introduced to concepts in physics, chemistry, biology and life-sciences, and Earth and environmental sciences. Across these multiple disciplines you will meet time scales that include ages, durations and rates, and size scales including distances in three dimensions, which underpin areas and volumes...Scale – dealing with the miniscule...

...trees, and how such symbiosis can be used for economic and environmental benefit. In the audio track, Professor David Robinson of The Open University delves deeper into the techniques scientists use to learn more about the woodwide web. This material forms part of The Open University course S204 Biology: uniformity and diversity... Investigating fungi: the wood-wide web A...

...tree rings - a science called ‘dendrochronology’ - gives us real clues to the changes in our environment in the last few thousand years. Sections through preserved or fossilised tree trunks are carbon dated and these dates are then matched up with the growth rings in the tree trunk. This gives us actual dates for changes in climate. During warm periods, like...