Close-up of gold vermeil pi necklace on a delicate chain, showcasing its sleek design.
A close-up of a woman wearing the gold vermeil Pi necklace, elegantly resting on her collarbone. The delicate chain and pi symbol pendant add a subtle yet stylish mathematical touch to her outfit.

pi necklace

gold vermeil
|

€ 165

Length

45 cm + 5 cm extender chain included

Choose your extra chain

Earn 165 Science club points

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  • Free cleaning cloth included

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Pi Necklace in Gold Vermeil: The Number That Never Ends and Never Repeats, in Gold

π ≈ 3.14159... and then it continues indefinitely, without pattern, without end. The most recognized mathematical constant in the world, in 18K gold vermeil at 14 mm. For mathematicians, physicists, and engineers who want gold jewelry with genuine mathematical weight.

The Science Behind Pi

Pi has been approximated since ancient Babylon (~1900 BC) and ancient Egypt (~1650 BC). Archimedes of Syracuse (~250 BC) provided the first rigorous bounds, using polygons with 96 sides inscribed and circumscribed around a circle to establish 3 10/71 < π < 3 1/7. The symbol π was introduced by Welsh mathematician William Jones in 1706 and popularized by Leonhard Euler. Pi is irrational — it cannot be expressed as a ratio of integers — as proven by Johann Heinrich Lambert in 1761. It is also transcendental — not the root of any polynomial equation with rational coefficients — as proven by Ferdinand von Lindemann in 1882. This transcendence also proved that squaring the circle by compass and straightedge is impossible. Pi appears in Euler's identity (e^iπ + 1 = 0), in Gaussian integrals, in Heisenberg's uncertainty principle, and in the volume formula for spheres of any dimension.

A Meaningful Gift for Science Lovers

A gold version of the most universally recognized mathematical constant:

  • Mathematicians and mathematics educators
  • Physicists, engineers, and statisticians
  • Mathematics graduates marking a milestone
  • Anyone who wants a gold science gift that requires no explanation

Gold pi for the mathematician who has spent years working with it. Irrational, but good.

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FAQ

Q: Is this the mathematical constant pi?

A: Yes. Pi (π) is the ratio of circle circumference to diameter, fundamental in mathematics and physics. It appeals to mathematicians and math enthusiasts.

Q: How long is the chain?

A: The chain is 45 cm gold vermeil with a 5 cm extender for adjustable length.

Q: What is the material composition?

A: This piece is gold vermeil: sterling silver core plated with 18k gold. The gold plating will develop a natural patina with wear.

Q: How long does shipping take?

A: We ship worldwide via DHL Express with free shipping. Delivery takes 1-5 business days, and all duties and taxes are covered.

Math & Physics

Unlock the elegance of the abstract with our math and physics-inspired jewelry collection. These carefully crafted pieces mirror the profound equations and natural laws that shape our understanding of the universe. Experience the allure of fractals, the rhythmic beauty of pi, and the celestial wonder of astral formations—each piece serves as a wearable homage to the artistry inherent in scientific inquiry.

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