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£11.60
£5.80 each
 

Gravitational Blueshift Black Ink Pen

4.8 out of 5 stars rating
483 Total Reviews |
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Personalise this template
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 color 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 (4.02" x 1.36"). For best results please add 0.6 cm (0.24") 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 towards 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, independant of the received angle of the photon. Gravitational blueshift is a natural consequence of conservation of energy and mass-energy equivalence. Customise 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 rating483 Total Reviews
412 total 5-star reviews49 total 4-star reviews10 total 3-star reviews6 total 2-star reviews6 total 1-star reviews
483 Reviews
Reviews for similar products
5 out of 5 stars rating
By Daphne L.9 January 2019 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
Nicely made product, the plastic feels substantial and the matte finish works nicely with my design. Overall I'm very pleased with the quality. I recommend it as an addition to a personalized matching stationery set. Even though it's listed as a no grip, the texture on the design gives it traction when you write with it; a pleasant surprise. The printing is lovely, a little darker than expected and less sharp, but I love the texture with the printing which adds to its substantial feel without being heavy.
5 out of 5 stars rating
By Robert E.15 October 2020 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
Such a great service!!! Great pens! Thanks you. Perfect Spot on. We love them.
5 out of 5 stars rating
By T.21 January 2023 • Verified Purchase
Black Trim Pen, Black Ink
Zazzle Reviewer Program
This was given as a gift. Great quality and perfect for any alien fans. I would recommend and will definitely buy again. The design and quality was perfect. This gift was very well received.

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gravitygeekastrophysicssciencephysicsastronomyspacefractalredcustom

Other Info

Product ID: 256912838389045194
Created on 10/07/2025, 6:14
Rating: G