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Gravitational Blueshift

4.9 out of 5 stars rating
7389 Total Reviews |
by
Qty:
Paper Type
Signature Matte
  • 17 pt thickness / 120 lb weight
  • Light white, uncoated matte finish with an eggshell texture
-$0.25
+$0.95
+$0.95

About Cards

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Create your own from scratch

Size: Standard (12.7 cm x 17.8 cm)

Birthdays or holidays, good days or hard days, Zazzle’s customised greeting cards are the perfect way to convey your wishes on any occasion. Add a photo or pick a design and brighten someone’s day with a simple “hi”!

  • >Dimensions: 12.7 cm x 17.8 cm (5" x 7") portrait or 17.8 cm x 12. 7 cm (7" x 5") landscape
  • Full colour CMYK print process
  • All-sided printing for no additional cost
  • Printable area on the back of the card is 7.6 cm x 10.2 cm (portrait) or 10.2 x 7.6 cm (landscape)
    • Standard white envelopes included

Paper Type: Matte

The most popular paper choice, Matte’s eggshell texture is soft to the touch with a smooth finish that provides the perfect backdrop for your chosen designs.

  • Light white, uncoated matte finish with an eggshell texture
  • Paper is easy to write on and won't smudge

About This Design

Gravitational Blueshift

Gravitational Blueshift

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, independent of the received angle of the photon. Gravitational blueshift is a natural consequence of conservation of energy and mass-energy equivalence.
FractalFire
Bronze
Artwork designed by
Anchorage, Alaska, United States
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Customer Reviews

4.9 out of 5 stars rating7.4K Total Reviews
6764 total 5-star reviews495 total 4-star reviews71 total 3-star reviews26 total 2-star reviews33 total 1-star reviews
7,389 Reviews
Reviews for similar products
5 out of 5 stars rating
By E.15 November 2021 • Verified Purchase
Folded Card, Size: Standard (12.7 cm x 17.8 cm), Paper: Signature Matte
Zazzle Reviewer Program
Lovely quality cards. Nice to get a real traditional Chrismassy theme in Australia, not the beach and Australian animals stuff. Excellent, would use again
5 out of 5 stars rating
By Angela M.16 November 2022 • Verified Purchase
Folded Card, Size: Big (21.6 cm x 28 cm), Paper: Signature Matte
Zazzle Reviewer Program
Easy to order Good price Quick delivery. Card came out exactly as ordered
5 out of 5 stars rating
By Nicole B.20 August 2025 • Verified Purchase
Folded Card, Size: Small (10.2 cm x 14.2 cm), Paper: Signature Matte
Very impressed with the quality of my personalised birthday card. Also received it very quickly .

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gravityblueshiftgeekastrophysicssciencephysicsastronomyspacefractalred

Other Info

Product ID: 137288866138221102
Added on 19/12/13, 6:09 pm
Rating: G