Michael Pritchard - Filter bottle that can produce 6000 liters of clean water

Posted 12 years ago by boyt in category: interesting   Comments (7)

Posted 11 years ago by boyt in category: interesting   Comments (10)

For foreigners, learning to speak Chinese is a hard task. But learning to read the beautiful, often complex characters of the Chinese written language may be less difficult.

Posted 11 years ago by boyt in category: interesting   Comments (0)

New 850hp John Deere diesel, against an 1800's steam tractor rated 18hp. It's all about torque and traction.

Posted 10 years ago by 99red in category: interesting   Comments (2)

Posted 14 years ago by jeroen in category: interesting   Comments (1)