And from yesterday's Telegraph letters page (I wonder how they're feeling now?):
T5 engineering inspiration
Sir - Heathrow Terminal 5 opens to the public today: a triumph of modern engineering. With five levels, the size of 10 football pitches, it is the largest freestanding building in Britain.
Catering for up to 35 million passengers a year, it provides a crucial part of the transport infrastructure required to grow the British economy.
Part of the building's innovative technology is a rainwater-harvesting system that reuses up to 85 per cent of the rain that falls on site.
This project not only demonstrates the vital role that engineering and technology play in supporting our society, but it will also inspire a whole new generation to pursue careers in engineering.
Dr John Morton Chief Executive, the Engineering and Technology Board; Tom Foulkes Director General, the Institution of Civil Engineers; Robin McGill Chief Executive, the Institution of Engineering and Technology; Professor William Banks Senior Deputy President, the Institution of Mechanical Engineers; Blane Judd Chief Executive, the Chartered Institute of Plumbing and Heating Engineering; Nick Reeves Executive Director, Chartered Institution of Water and Environmental Management; Kevin Macan-Lind Chief Executive, the Institute of Acoustics; Dr David Brown Chief Executive, Institution of Chemical Engineers; John Williams Chief Executive Officer, Institution of Gas Engineers and Managers; John Long Chief Executive Officer, the Institute of Healthcare Engineering and Estate Management; Mary Lewis Chief Executive, the Institution of Highways and Transportation; Dr Graham Woodrow Deputy Chief Executive, the Institute of Materials, Mineral and Mining; Michael Yates Secretary, Institute of Measurement and Control; Colin Porter Chief Executive, the Institution of Railway Signal Engineers; Lt Col David Hamilton Chief Executive, the Institution of Royal Engineers; Keith Read CBE Director General, the Institute of Marine Engineering, Science and Technology; Dr Keith Eaton Chief Executive, the Institution of Structural Engineers; Lynn Cooper Chief Executive, Institution of Water Officers; Keith Mans Chief Executive, the Royal Aeronautical Society; Trevor Blakely Chief Executive, Royal Institution of Naval Architects; Professor Raymond Clarke OBE Chief Executive, the Society of Environmental Engineers; Judith Walker Secretary, Institute of Highway Incorporated Engineers; Tim Jessop Chief Executive, the Welding Institute