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Gravitational Blueshift Black Ink Pen

4.8 out of 5 stars rating
475 Total Reviews |
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Writing Ink Colour
Black
Trim Colour
Blue

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Writing Ink Colour: 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 customising 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 colour inks & trim accents.
  • Printed in full vibrant colour that is sure to wow.
  • Extended life writing cartridges.
  • Proudly made in the USA.
  • Creator Tip: To ensure the highest quality print, please note that this product’s customisable design area measures 10.2 cm x 3.4 cm. For best results please add 0.6 cm bleed.

About This Design

Gravitational Blueshift Black Ink Pen

Gravitational Blueshift Black Ink Pen

A multi-coloured, 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, United States
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Customer Reviews

4.8 out of 5 stars rating475 Total Reviews
405 total 5-star reviews47 total 4-star reviews11 total 3-star reviews6 total 2-star reviews6 total 1-star reviews
475 Reviews
Reviews for similar products
5 out of 5 stars rating
By K.February 24, 2022 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
When I first ordered this product, the ink was not very good. I called the customer service department and told them. They issued a full credit to my account, and I ordered 25 new pens, and they are great! I am receiving many compliments about my new pens. Zazzle has an excellent customer service department where people listen and help. Thank you. Yes, all worked out great!
5 out of 5 stars rating
By Victoria M.November 27, 2020 • Verified Purchase
Red Trim Pen, Black Ink
Zazzle Reviewer Program
This pen is the cutest gift for a teacher. It writes smoothly with the colour I chose and met my expectations perfectly. Colours, name and mini images came out better than I anticipated. I highly recommend. I would like to buy myself so many more.
5 out of 5 stars rating
By Jennifer T.April 29, 2020 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
The pens are amazing and came right on time!!! Such an easy process and they look amazing! My husband loves them! Looks amazing! Printed out great! Exactly as I wanted

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Other Info

Product ID: 256912838389045194
Designed on 2025-07-10, 6:14 AM
Rating: G