“ Good idea -- but I'd omit the tanks in favor of check valves behind each pump. You'd have to add the mass of the pumps to the load carried by the... (read full comment) ” 

Posted on September 19, 2011 at 11:19 PM EDT

“ The atom-by-atom replication of an RFID chip would be quite a project. You'd also have to replicate every defect in the underlying substrate, and... (read full comment) ” 

Posted on March 15, 2010 at 3:28 PM EDT