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Speed of Light Physics Tshirt

Qty:
Basic Dark T-Shirt
-$2.15
+$15.10
Deep Forest
Vivid Printing: White Underbase

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About T-Shirts

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Style: Basic Dark T-Shirt

Comfortable, casual and loose fitting, our heavyweight dark colour t-shirt will quickly become one of your favourites. Made from 100% cotton, it's unisex and wears well on anyone and everyone. We’ve double-needle stitched the bottom and sleeve hems for extra durability. Select a design from our marketplace or customise it to make it uniquely yours!

Size & Fit

  • Model is 188 cm and is wearing a medium
  • Standard fit
  • Garment is unisex sizing
  • Fits true to size

Fabric & Care

  • 100% cotton (Heathers are a cotton/poly blend)
  • Double-needle hemmed sleeves and bottom
  • Imported
  • Machine wash cold

About This Design

Speed of Light Physics Tshirt

Speed of Light Physics Tshirt

The first true measurement of light-speed came in 1676 by a fellow named Olaf Roemer. He noted that the time elapsed between eclipses of Jupiter with its moons became shorter as the Earth moved closer to Jupiter and became longer as the Earth and Jupiter drew farther apart. This anomalous behaviour could be accounted for by a finite speed of light. He calculated that the speed of light was something like 2.14 x 10^8 metres per second. This measurement, considering its antiquity, method of measurement, and 17th century uncertainty in exactly how far Jupiter was from the Earth, is surprisingly close to the modern value of 2.99792458 x 10^8 metres per second. These modern values are obtained using devices called laser interferometers, which can very precicely pin down speeds and distances.

Customer Reviews

4.7 out of 5 stars rating32.6K Total Reviews
25541 total 5-star reviews4972 total 4-star reviews1109 total 3-star reviews505 total 2-star reviews478 total 1-star reviews
32,605 Reviews
Reviews for similar products
5 out of 5 stars rating
By Robert C.1 March 2022Verified Purchase
Basic Dark T-Shirt, Black, Adult L
Creator Review
I purchased this to test to see if zazzle was producing good quality. Needless to say, they are. The sizing runs a bit on the small size though. Print quality is perfect. What you see on the screen is what you get.
5 out of 5 stars rating
By Xavier D.3 February 2021Verified Purchase
Basic Dark T-Shirt, Black, Adult M
Creator Review
I like the colours and design, I liked it that much I bought one for myself. Yes the colours and deisgn turned out great. Much better than I expected
5 out of 5 stars rating
By Rachel R.4 September 2025Verified Purchase
Basic Dark T-Shirt, Black, Adult S
Ordered the Irish terrier t shirt. I love it! There was a slight issue with sizing ( my fault) but their customer service was amazing. New t shirt within 5 days. I recommend getting 1 to 2 sizes bigger. I am wearing Men's size large.

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physicsatomsciencemathematicsgeekgeekynerdnerdyawesomechemistry

Other Info

Product ID: 235305991465233493
Added on 15/8/22, 10:28 am
Rating: G