Two Pi or Not Two Pi Neckwear

Two Pi or Not Two Pi Neckwear by iiphotoArt
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Graphic text '2pi or not 2pi, tau is the question' is a humorous, mathematical take on Shakespeare's famous line 'To be or not to be'.

OPUS Christmas Tree Neck Tie

OPUS Christmas Tree by roceskori
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OPUS Retro Circles Neck Wear from Zazzle.com

OPUS Retro Circles Neck Wear from Zazzle.com

OPUS Retro Circles by roceskori
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Nikola Tesla Neck Ties from Zazzle.com

Nikola Tesla Neck Ties from Zazzle.com

Nikola Tesla by zerakith
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If only the world used Tesla power towers ! There would be no more nuke disaster in the world !A Nikola Tesla Tie. Nikola Telsa, inventor and scientist, is credited with inventing, Alternating Current Systems, the Induction Motor; Wireless Technology, Radio Astronomy and possibly a 'death ray'