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Gravitational Blueshift Pen

4.8 out of 5 stars rating
470 Total Reviews |
by
Qty:
Writing Ink Color
Black
Trim Color
Blue

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Create your own from scratch

Writing Ink Color: Black Ink Pen

Just because we all have smart phones and laptops doesn't mean the written word is on its way out. In fact, it means just that much more to receive a personal handwritten note! Arm yourself with your own writing mechanism by customizing your own one-of-a-kind pen, and continue to make statements in the good ol' fashioned way.

  • Minimum order of 2.
  • Click into action with your own one-of-a-kind pen.
  • Available in multiple color inks & trim accents.
  • Printed in full vibrant color that is sure to wow.
  • Extended life writing cartridges.
  • Proudly made in the USA.
  • Designer Tip: To ensure the highest quality print, please note that this product’s customizable design area measures 4.02" x 1.36". For best results please add 0.24" bleed.

About This Design

Gravitational Blueshift Pen

Gravitational Blueshift Pen

A multi-colored, fractal representation of gravitational blueshifting; the shifting of light toward the blue end of the spectrum that occurs as photons become more energetic when falling into a gravity well. Unlike the more commonly known Doppler blueshift, an apparent effect which is the result of motion towards the observer, gravitational blueshift is real, independent of the received angle of the photon. Gravitational blueshift is a natural consequence of conservation of energy and mass-energy equivalence. Customize by adding your own text.
FractalFire
Bronze
Artwork designed by
Anchorage, Alaska
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Customer Reviews

4.8 out of 5 stars rating470 Total Reviews
401 total 5-star reviews47 total 4-star reviews10 total 3-star reviews6 total 2-star reviews6 total 1-star reviews
470 Reviews
Reviews for similar products
5 out of 5 stars rating
By Denise A.December 15, 2017 • Verified Purchase
Zazzle Reviewer Program
Very nice blue, or black ink pen. I will be buying more. The print was fine. I can easily see the print. The flowers look great.
Original product
5 out of 5 stars rating
By Beth B.April 10, 2017 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
Once again, Zazzle hasn't let me down! There product is so remarkable and so, Rey beautiful! Very hard to think of something to,get for a lady who will be 90! No doubt it will be cherished and the talk of the party. Fabulous! The pen will really go,well,with the Guest Book I ordered for her 90 th party. Then as a second thought, I thought of an album so she can keep,the pictures and any other mementos so might to put in this gorgeous book. Again! Great idea! Great product designed by Zazzle! Onmore thing! I had to have assistance and I got it with great help by one of there Customer Service Rep! He was able to,fix my problem. All around class company!
5 out of 5 stars rating
By Alissa K.October 18, 2025 • Verified Purchase
Black Trim Pen, Black Ink
Great product at a great price!

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gravitygeekastrophysicssciencephysicsastronomyspacefractalredcustom

Other Info

Product ID: 256912838389045194
Created on: 7/10/2025, 6:14 AM
Rating: G