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Gravitational Blueshift Cards
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Gravitational Blueshift Cards
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.
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4.9 out of 5 stars rating7.4K Total Reviews
7,368 Reviews
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5.0 out of 5 stars rating
5 out of 5 stars ratingBy Corinne D.March 13, 2025 • Verified Purchase
I love how my "Happy Pupcrossing!" postcard turned out! It's so pretty! Zazzle prints top notch postcards and greeting cards!
This postcard is available in my online Zazzle shop without the text on it if you're not a Postcrosser.
The easiest way to find my Zazzle shop is through my associate link which is located on the navigation bar of my artist website Ink Goes Wild Alaska. I earn a little extra profit when you use that link.
Corinne Danzl
Ink Goes Wild Alaska.
Original product
5.0 out of 5 stars rating
5 out of 5 stars ratingBy NavinJOSHI s.August 13, 2013 • Verified Purchase
Folded Card, Size: Standard (5" x 7"), Paper: Signature Matte
Creator Review
Unusual color scheme is clearly visible on the art. Not many artist try to emphasize that as an artist they can see things different so long they look beautiful. This is an UNIQUE image.
I bought a bunch of 34 different cards as like to give a different card to each of my friend which makes it very personal. When friends talk with each other, they appreciate the gesture all the more. Also I took advantage of volume pricing. Thanks to Zazzle for allowing to order even one card. I recommend people to buy from Zazzle. Pure Joy. Excellent printing and color tones.
5.0 out of 5 stars rating
5 out of 5 stars ratingBy K N.November 10, 2018 • Verified Purchase
Folded Card, Size: Standard (5" x 7"), Paper: Signature Matte
Creator Review
What strikes me most about this card on opening the envelope is the stunning color and the beautiful close up. The card itself lends it to a feel good touch as well so its a lot of senses perked! My customers like it as well! The color is stunning! The closeup is very nicely detailed and just perfectly awesome! Could not ask for better printing!
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Product ID: 137288866138221102
Created on: 12/19/2013, 6:09 PM
Rating: G