419 search results

Pain and Aspirin
Science, Maths & Technology

Pain and Aspirin

...carbon, two for oxygen and one for hydrogen). If any atoms have the wrong valency, it follows that there is a mistake somewhere and the molecule does not exist as drawn. It looks OK for the structure of salicylic acid. You probably noticed that some of the carbon atoms have two bonds joining them to another atom. These are called double bonds and they contain four...
Level 2: Intermediate 4 hrs
The ISIS winter: The environmental impact of Middle East conflict
Nature & Environment

The ISIS winter: The environmental impact of Middle East conflict

...footprint in its wake — a footprint that will hinder reconstruction efforts and have long-term health and economic consequences for communities. "The most important feature of this effort is to create a monitoring model that can provide data on the environment, not only after the conflict but also during it, making decision makers more capable of and competent to take...
How do fire controls harm biodiversity?
Nature & Environment

How do fire controls harm biodiversity?

...carbon dioxide absorbed in different areas of a small city in El Cerrado the commune Aguas de Santa Barbara. They confirmed that a policy banning human-caused fires between 1986 and 2015 encouraged the growth of denser forest. This led to an increase, by 1.2 tons, of the carbon stored in both vegetation and soil in those areas since 1986. But at the same time, they found...
The new politics of climate change
Nature & Environment

The new politics of climate change

...carbon targets but engage more comprehensively with the need for deep adaptation as highlighted by Jem Bendell and his work in this area. With other issues such as Brexit and re-election garnering all the attention in parliament, it is likely that there will be continued delays in addressing climate change. Over the next 12 years these delays will become more and more...
DIY: Taking the Caffeine Out of Tea
Science, Maths & Technology

DIY: Taking the Caffeine Out of Tea

...carbon dioxide. Although it’s a gas at normal temperatures and pressures, solid carbon dioxide won’t pass through a liquid stage as it warms up at atmospheric pressure. This is why it’s sometimes called ‘dry ice’. Decaffeinated coffee Caffeine can be removed from coffee beans, before they’re roasted, by a process called solvent extraction. Water is first added...
Rock Clocks
Science, Maths & Technology

Rock Clocks

...carbon to give us absolute ages. Carbon occurs in organic remains like bone and wood, which can also be fossilized in rocks. ‘Carbon dating’ is therefore useful for dating events in the ice age, like the length of glacial periods and the date of the retreat of the last ice sheet covering the UK which was 13,000 years ago. We can even date the actual ice using the...
Article 10 mins
The drive to sustainability in Higher Education
Nature & Environment

The drive to sustainability in Higher Education

...carbon emissions (let alone other potential environmental impacts). A complex question! Some of the earliest research was pioneered by The Open University with the first major quantitative study, the ‘Factor 10 Visions’ study ‘Towards Sustainable HE’ (Roy et al. 2005; Roy et al. 2008) followed by the Jisc-funded SusTEACH research and development project –...
Safer battery could spark investment in renewables
Nature & Environment

Safer battery could spark investment in renewables

...carbon-based molecules called quinines for the negative electrolyte component of the battery. They had started their experiments with bromine-based electrolyte for the positive ions, but bromine is toxic and volatile. So they replaced it with a non-toxic, non-corrosive ion called ferrocyanide. “It sounds bad because it has the word cyanide in it,” Dr Marshak says....