According to the BBC, the ball-point pen or biro turns sixty this month.
I have to confess that I have gone back to using a fountain pen. Modern materials and ergonomic design make them a far cry from what they were when, in 1938, the Biro brothers created the first ballpoint to get around the problem of leaky ink.
For the mathematicians reading this who cannot make 1938+60=2006, the anniversary is that of when the biro first went on sale in the United Kingdom.
Happy bicday.
Published Friday, 24th November 2006.
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