Finding the Speed of Light: The 1676 Discovery That Dazzled the World
SKU: 41240918476

Finding the Speed of Light: The 1676 Discovery That Dazzled the World

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Description

Finding the Speed of Light: The 1676 Discovery That Dazzled the WorldMore than two centuries before Einstein, using a crude telescope and a mechanical timepiece, Danish astronomer Ole Romer measured the speed of light with astounding accuracy. How was he able to do this when most scientists didn't even believe that light traveled? Like many paradigm shattering discoveries, Romer's was accidental. Night after night he was timing the disappearance and reappearance of Jupiter's moon Io behind the huge, distant planet.

More than two centuries before Einstein, using a crude telescope and a mechanical timepiece, Danish astronomer Ole Romer measured the speed of light with astounding accuracy. How was he able to do this when most scientists didn't even believe that light traveled? Like many paradigm-shattering discoveries, Romer's was accidental. Night after night he was timing the disappearance and reappearance of Jupiter's moon Io behind the huge, distant planet. Eventually he realized that the discrepancies in his measurements could have only one explanation: Light had a speed, and it took longer to reach Earth when Earth was farther from Jupiter. All he needed then to calculate light's speed was some fancy geometry.



Binding Type: Hardcover
Publisher: Tilbury House Publishers
Published: 03/12/2019
ISBN: 9780884485452
Pages: 32
Weight: 1.10lbs
Size: 9.10h x 11.20w x 0.40d

Review Citations: Kirkus Reviews 02/01/2019 pg. 163
School Library Journal 06/01/2019 pg. 94
Hornbook Guide to Children 07/01/2019 - Recommended, Satisfactory

Accelerated Reader Quiz #/Name: 504184 / Finding the Speed of Light: The 1676 Discovery That Dazzled the World
Reading Level: 5.1 / Interest Level: Middle Grade / Point Value: 1
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SKU: 41240918476

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4.5 ★★★★★
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Product Reviews
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Verified Purchase
Tara U.
Grantham, US
★★★★★ 5
beautiful and sturdy
Size: 48 inch 2 Tier
The shelf is beautiful and sturdy. The only small complaint are the instructions to put it together are deceiving because pieces were put together for shipping purposes (we assume) but didn't actually go together which took us a few times to figure out. I recommend putting it together off the wall before trying it on the wall so you know what pieces go where.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
N
Verified Purchase
Nancy
West Palm Beach, US
★★★★★ 1
Cheaply made
Size: 48 inch 2 Tier
I would not recommend this shelf. There are no instructions included - just a simple drawing of putting it together but nowhere says what drill bit size to use for the plastic anchors which are square on the end and not round. In addition, you cannot fully tighten the iron brackets or they won’t alight on the wall to hang the shelf. Each piece of metal piping has part of the black coating stripped off as well. And on top of that, the bottom of each shelf is unfinished and looks as though they used a filler to hide holes in the shelf. Not worth the money or the hassle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
K
Verified Purchase
Kindle Customer
Natrona Heights, US
★★★★★ 5
Looks like it is in picture and very sturdy.
Size: 48 inch 2 Tier
Loved this looks just like picture and is easy to assemble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
K
Verified Purchase
Kris Feucht
Chelsea, US
★★★★★ 5
Great product
Size: 48 inch 2 Tier, Size: 48 inch 2 Tier
Love! great value, heavy duty, perfect for my space.
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Reviewed in the United States on January 31, 2026
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Verified Purchase
Sara
West Palm Beach, US
★★★★★ 4
Good shelf to upgrade my awkward kitchen!
Size: 42 inch 2 Tier
This shelf is exactly what I was looking for for my awkward kitchen in my new house. Don't mind the plywood walls (who knows what the previous owners were thinking 🤣) but anyways, we had this awkward gap between the kitchen counters and the stove, so I got a stainless steel shelf to fill the gap and add some more counterspace, and I found this industrial style pipe shelving, which was the perfect size and height to fit in this gap on the wall and give us more storage/organization space. It's easy to assemble and hang up, and seems very strong and sturdy. It's a little heavy, but lightweight enough to hang easily. Right out of the box, it was disappointing to see some scuffs in the black paint on the piping, especially for the price. Luckily, the biggest scuff is in a pretty inconspicuous space so it's not a big deal. Definitely not worth returning to see if another one wouldn't have any scuffs (especially since many of the other reviews mentioned scuffs too). It's wabi sabi I suppose 😅 Also, not a single extra screw or hardware was included. Not a big deal, but screws are cheap enough to through in one extra just in case one is missing or lost. Overall, mostly happy with the purchase. The wood is solid and the shelf looks nice in my kicthen!
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Reviewed in the United States on January 27, 2026

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