Tap / click on image to see more RealViewsTM
$30.30
per keychain
Present Is A Relative Concept (Light Cone Physics) Key Ring
Qty:
Style
Aluminum Circle
+$7.90
+$7.90
+$38.80
+$38.80
About Keychains
Sold by
About This Design
Present Is A Relative Concept (Light Cone Physics) Key Ring
Do you often wonder where you are on the time-space continuum? Wonder no further with any of these physics humour geek attitude gifts featuring exactly where an observer is in the present, between the future light cone and past light cone. Make others do a double-take with any of these educational, scientific truism saying gifts which notes that "Present Is A Relative Concept"!
Customer Reviews
4.6 out of 5 stars rating5.4K Total Reviews
5,438 Reviews
Reviews for similar products
5 out of 5 stars rating
By Ali Y.4 February 2026 • Verified Purchase
Metal Circle Keychain, 5.08 cm
Lovely & cute keychains i love them thank you sooo much ,they also reached to me soo fast 😍.
from zazzle.com (US)
5 out of 5 stars rating
By linda f.18 June 2025 • Verified Purchase
Premium Round Keychain, Small (3.65 cm)
So cute and this is perfect!!!
from zazzle.com (US)
5 out of 5 stars rating
By Anonymous22 September 2025 • Verified Purchase
Metal Circle Keychain, 5.08 cm
I went on vacation and family and friends want me to get them a key chain I was already returning home so I got it from zazzle there happy!!
from zazzle.com (US)
Tags
Other Info
Product ID: 146301347310020903
Posted on 13/06/2010, 3:12 PM
Rating: G
Recently Viewed Items