1.

Color photos from 1920s Ireland http://bit.ly/gcNnK0

2. U.S. Army trials tactical smartphones http://bit.ly/gSTnYU

3. Scaffolding can be beautiful http://bit.ly/heTHZf

4. Glass, it's the future http://bit.ly/gedLPq

5. Um, clever, dirty, safe for work (!) http://bit.ly/eICCQX