We need a civilised world that goes on for all our grandchildren and beyond in which these guitars can be played and songs can be sung.
Pink Floyd guitarist David Gilmour auctioned off his guitars for $21.5 million and donated the money to public-interest environmental-law firm ClientEarth.
An arctic fox made a record run from Svalbard to Canada in 2,5 months. The distance of 3,506 km was completed in only 76 days. The average daily distance the fox covered was 46 km. At most, the animal ran as much as 155 km per day.
Source: Norwegian Polar Institute
Image: Ann Kristin Balto / Norsk Polarinstitutt
Image: Arnaud Tarroux / NINA
I believe one of the greatest human failings is to prefer to be right than to be effective.
This is an online edition of the classic technical reference Five Hundred and Seven Mechanical Movements by Henry T. Brown.
This site contains the original illustrations and text from the 21st edition of the book, published in 1908. It also includes animated versions of the illustrations, and occasional notes by the webmaster.