“ The illustration could use a caption. What are (a), (b), and (c)? (read full comment) ” 

Posted on April 2, 2012 at 3:22 AM EDT

“ So, if electronic money is coming, how come the very banks that are supposedly leading the charge are actually taking it all back? When they... (read full comment) ” 

Posted on March 13, 2012 at 2:12 AM EDT

“ As fascinating and productive as the self-quantifying approach seems, I believe we must consider the ethical downside from the very beginning of... (read full comment) ” 

Posted on February 21, 2012 at 1:44 PM EST

+ 3 more comments posted in this discussion

“ other characteristics? Suppose you want to air condition your house? What is the insulation value (R value) of the shingles? In other words, how... (read full comment) ” 

Posted on January 20, 2010 at 2:30 AM EST