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Schrodinger's Car Keys

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Signature Matte
  • 17 pt thickness / 120 lb weight
  • Light white, uncoated matte finish with an eggshell texture
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About Cards

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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

Schrodinger's Car Keys

Schrodinger's Car Keys

Nerdz go on, at great length, about Schrodinger's Cat (note Zazzle is defeating our html attempts to put the umlaut in "Shroedinger" here. If it bugs you, go fetch a sharpie and draw one in). The experiment goes like this: something something cat, wawa radioactive decay, foobie bletch simultaneously alive and dead, gurgle poop collapse of the wave function. What they won't tell you is that the whole story is apocryphal. Schrodinger's (again, with the umlaut) original experiment actually involved locking his keys in his car. You can't know if the keys are locked in the car (unless you can see them) and you can only determine if the keys are in the car by opening the car door (which you can't, because the keys may or may not be locked inside). Also known as Schrodinger's Coat Hanger, Schrodinger Calls University Parking Services, and Schrodinger's Brick. Would LabKitty lie about this? Only if it furthered our purposes somehow.

Customer Reviews

4.9 out of 5 stars rating7.4K Total Reviews
6760 total 5-star reviews495 total 4-star reviews72 total 3-star reviews27 total 2-star reviews33 total 1-star reviews
7,387 Reviews
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5 out of 5 stars rating
By E.15 November 2021Verified 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 2022Verified 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 2025Verified 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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schrodingers catquantummechanicsparadoxradioactivejust funny

Other Info

Product ID: 137202171843075874
Added on 28/9/11, 1:07 pm
Rating: G