1. 
An app lets me judge my two sides independently http://bit.ly/h3Osdy
2. Putting the solar system into scale http://bit.ly/eoY1sM
3. Fake science is fun http://bit.ly/gIKFTG
4. Floating city concept http://bit.ly/ffHD0T
5. Eyes are amazing http://bit.ly/edcEJi