Reading on an iPad or Kindle is as much as 10.7% slower than reading a good, old-fashioned book, according to a study by Dr Jakob Nielson. But don't throw out your eReader just yet - the test group comprised only 24 members, which is way too small a number to produce conclusive results. Read more: PC World
Some firing squads are all issued with blank cartridges with the exception of one person. This helps alleviate personal responsibility for the execution squad.