A possible solution to global warming

It was Jean Fourier who, in 1827, first realised that it was the atmosphere that protects us from the coldness of space. In the 1850s, John Tyndall recognised that only...

A fine waste of a roof - Environmental benefits of green roofs

Planning constraints on architects and planners, designed to minimise the environmental impact from industry from the erection of new buildings, have highlighted the benefits of green roofs. A vegetated rooftop combines layers of aggregate with some organic matter and can promote the growth of plant and wildlife biodiversity.

House of the rising sun - the effects of thermal mass on housing

Investigations into lightweight and heavyweight constructions in relation to potentially increasing temperatures due to climate change show that lightweight construction leads to increased internal temperatures and greater levels of discomfort. The case for high thermal mass buildings in saving energy is not confirmed, but careful consideration should be given to insulation, ventilation and solar gain.

Boning up on selection ― Regenerative glass scaffolds for tissue replacement

Selecting materials for en vivo use has moved away from tissue replacement implants to using materials that stimulate the body's own regenerative mechanisms. The two main strategies are in situ tissue regeneration and tissue engineering, both techniques grow cells on bone scaffolds which are directly implanted into the body.

Building bridges - Duplex steel alloys used in bridge construction

The perception in civil engineering that the use of stainless steels for bridge construction is expensive is changing. In times of high alloy prices duplex steels have become more economically attractive. These newer lean alloys can provide corrosion protection over a wide range of environmental conditions typical of bridge structures.