World's largest ballpoint pen collection Angelika Unverhau from Dinslaken, Germany, has accumulated around 220,000 different kinds of ballpoint pens.
On an average, she acquires an additional 30,000 new pens each and every year.
She founded a club for ballpoint pen collectors, and her favourite pen is a Russian ballpoint pen made in 1957, to celebrate the launch of Sputnik 1.
World's smallest pen US scientists have produced the world's smallest pen, capable of drawing lines, just a few dozen molecules wide and just one molecule thick. The researchers created a picture of a tiny cube to demonstrate their instrument. Each line on the cube has a width of just 30 nanometres (30 millionths of a millimetre). The pen's designers believe the new tool could be useful in the manufacture of nanoelectronic circuitry - components 1,000 times smaller than microcircuits.
Extravagant buyer! The Mont Blanc pen which Prince Moosa Bin Shamsher of Bangladesh uses for signing cheques is made of 24-carat gold. It is embedded with 7,500 diamonds, and was bought by him at a price of US $260,000.
World's costliest pen Swiss company Caran d'Ache made 'La Modernista Diamonds' a pen that was sold in Harrods, London, for $265,000. Created in the memory of architect Antonio Gaudi, the rhodium-coated solid silver pen has an 18-karat gold pen point and is pave-set with 5,072 diamonds and 96 half-cut rubies.
US scientists have produced the world's smallest pen, capable of drawing lines, just a few dozen molecules wide and just one molecule thick. The researchers created a picture of a tiny cube to demonstrate their instrument. Each line on the cube has a width of just 30 nanometres (30 millionths of a millimetre). The pen's designers believe the new tool could be useful in the manufacture of nanoelectronic circuitry - components 1,000 times smaller than microcircuits.
Swiss company Caran d'Ache made 'La Modernista Diamonds' a pen that was sold in Harrods, London, for $265,000. Created in the memory of architect Antonio Gaudi, the rhodium-coated solid silver pen has an 18-karat gold pen point and is pave-set with 5,072 diamonds and 96 half-cut rubies.
