资讯

For Construction Pros18 天
The 3 Phases of Technology Adoption: Understand, Adjust and Integrate
From complex mining environments to mega highway restoration projects, many contractors embrace the latest solutions to ...
Natural History Museum%2c London1 年
Amphibian survey methods and ID guides
Includes a species ID guide. When: The frog and toad survey is done between 1 January and 31 March. The newt survey is done between 1 April and 30 May. Equipment: Torch, pond net. You will need good ...
Smithsonian Magazine1 年
From Ptolemy to GPS, the Brief History of Maps
It was unfamiliar territory for her, so she was dutifully following her GPS. Indeed ... The British Ordnance Survey began mapping the U.K. down to the square yard, and the German entrepreneur ...