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$51.55
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Gravitational Blueshift Travel Mug

4.8 out of 5 stars rating
21641 Total Reviews |
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Travel/Commuter Mug
-$20.65
-$18.60
-$16.50
-$10.30
-$8.25
-$4.10
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colour
Stainless Steel

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Style: Travel/Commuter Mug

You don’t have to give up a colourful, funny, or attractive design for the function of a top-notch travel mug. Zazzle’s commuter mugs feature a rubber-lined lid for a tight, spill-resistant seal — twist the lid to reveal the sip opening! So, take your favourite photo, monogram, pattern, or cool design with you on your new favourite mug.

  • Dimensions: 414 ml: 6.4 cm diameter base x 8.9 cm diameter x 15.7 cm height
  • Materials: Stainless steel body; plastic handle and base; rubber-lined plastic lid
  • Double-walled stainless steel helps keep your drink hot
  • Do not microwave; hand wash recommended
  • Printed on demand in San Jose, California, USA
  • Do not overfill and be careful with hot liquids that may scald
  • Keep out of reach of children when filled with hot liquid

About This Design

Gravitational Blueshift Travel Mug

Gravitational Blueshift Travel Mug

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

4.8 out of 5 stars rating21.6K Total Reviews
19151 total 5-star reviews1836 total 4-star reviews321 total 3-star reviews132 total 2-star reviews201 total 1-star reviews
21,641 Reviews
Reviews for similar products
5 out of 5 stars rating
By Anonymous27 August 2025 • Verified Purchase
Travel/Commuter Mug, 444 ml
Very happy with both the quality of the print and travel mug itself. Was hesitant being from NZ that the item wouldn't arrive in time for Father's day given the shipping guidelines, but it took only 5 days to arrive - 2 days before estimated delivery. Highly recommended. .
5 out of 5 stars rating
By Janette C.28 February 2016 • Verified Purchase
Travel/Commuter Mug, 444 ml
Zazzle Reviewer Program
Excellent well made, great gift for a man on the go. Good clear black writing. Very happy.
5 out of 5 stars rating
By Anonymous31 August 2025 • Verified Purchase
Travel/Commuter Mug, 444 ml
everything is still going great .
from zazzle.com (US)

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Other Info

Product ID: 168942626926535978
Posted on 19/12/2013, 7:13 PM
Rating: G