Dr Karl Kruszelnicki, renowned author and science commentator answers listeners questions with Phil. Today he answers a question from Danny “Hi Dr Karl, i work at Bunnings and people always think its funny to ask how long is a piece of string. Dr Karl, you are the only person on this planet who could give a correct answer to this conundrum”

<p>Dr Karl Kruszelnicki, renowned author and science commentator answers listeners questions with Phil. Today he answers a question from Danny &ldquo;Hi Dr Karl, i work at Bunnings and people always think its funny to ask how long is a piece of string. Dr Karl, you are the only person on this planet who could give a correct answer to this conundrum&rdquo;</p>

Join Phil O'Neil from midnight to 5.30am Tuesday to Friday.

<p>Join Phil O'Neil from midnight to 5.30am Tuesday to Friday.</p>