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Home > All Images > 1999 > January > 22 Jan 1999

Images Dated 22nd January 1999

Choose from 31 pictures in our Images Dated 22nd January 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Woman holding an Interpane thermotrope window Featured 22 Jan 1999 Image

Woman holding an Interpane thermotrope window

Thermotrope window (image 1 of 2). Researcher Helen Rose Wilson holding an Interpane thermotrope window. A thermotrope window will darken when the temperature reaches a certain point. This will reflect any sunlight which would normally enter a building. This is useful for controlling room temperatures. The glazing is based on a heat reactive layer. Below a pre-set temperature the layer will remain clear as seen in the image. Above this temperature the layer will become cloudy, thus reflecting the sunlight. This glazing was developed at the Institute for Solar Energy (ISE), Freiburg, Germany. See photo T830/103 showing the window when it is opaque

© VOLKER STEGER/SCIENCE PHOTO LIBRARY

Scottish Secretary Donald Dewar (Left) Deputy Prime Minister John Prescott (Centre Featured 22 Jan 1999 Image

Scottish Secretary Donald Dewar (Left) Deputy Prime Minister John Prescott (Centre

Scottish Secretary Donald Dewar (Left) Deputy Prime Minister John Prescott (Centre) and John Reid launch a new billboard campaign in Scotland aim at warning the public about the SNP alledged income tax rises

© Mirrorpix

1990s, Advertising, Happy, Labour Party, Politician, Politics, Poster, Smiling