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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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4.1 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Perfect travel mate!
Color: Black, Color: Black
I love this small travel jewelry case. It is a great size for a vacation anywhere. I like how everything has a place to keep you well organized. Great value for the money and good quality material. so easy to snap shut and put in your suitcase. Sleek and black color that is classy.
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Reviewed in the United States on December 12, 2025
★★★★★ 3
Closing it when you have a ring.
Color: Black, Color: Black
Its a nice box but the problem i have with it is the middle piece. It does not give enough room if you have a ring that sits high like a cocktail ring. And same if you have a pendant necklace in the necklace area. You have ro really force it closed and i worry that it will put pressure on the items. It would work better without that middle piece for earrings or maybe if it were half the size. Closes fine when its empty but the minute you put a ring in the ring spot that has any kind of height you have to squeeze it shut. Its a good little box that you can put in a safe. Thats why i use it. Just to put my good jewelry in it and then secure it properly in a small house safe. Also ive already had the backs of a few earring pop off when I've opened the earring flap because it all rubs together. .
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Super usefull
Color: pink
If you're in search of a stylish and functional way to organize your jewelry while on-the-go, then this pink travel jewelry organizer is definitely worth considering. With its compact design and thoughtful features, it's the perfect accessory for any traveler or jewelry lover.
One of the standout features of this organizer is its size. With a compact design that can easily fit into a purse or suitcase, it's perfect for taking your jewelry with you on the go. And despite its small size, it still offers plenty of storage options - from compartments for necklaces and bracelets to slots for rings and earrings, it can hold all of your essential pieces.
But beyond its size, this travel jewelry organizer is also incredibly stylish. The soft pink color adds a feminine touch, while the sleek design and gold-tone hardware give it a sophisticated look. It's the perfect accessory to carry with you on any trip or to use as a daily storage option for your jewelry.
Another great feature of this organizer is its thoughtful design. The compartments and slots are all padded to protect your jewelry from scratches and damage, while the zippered closure ensures that everything stays secure and in place. Plus, the compact design means that you won't have to worry about your jewelry getting tangled or jumbled together during travel.
Overall, if you're in need of a travel jewelry organizer that is both stylish and functional, this pink option is definitely worth considering. With its compact size, ample storage options, and thoughtful design features, it's a great investment that will help you keep your jewelry organized and protected while on the go.
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Reviewed in the United States on April 22, 2023
★★★★★ 5
Simple and Effective Remote Organization
Color: Black, Size: Small
The Pros:
Spacious Design: With five deep pockets, there is plenty of room to store everything from TV and soundbar remotes to reading glasses.
Functional and Steady: It sits perfectly on a side table without tipping over. It does exactly what I hoped it would do by keeping all our remotes in one spot.
Great Portability: It is lightweight enough to move around easily, which is helpful for keeping things organized while we are on the move.
Clean Finish: The material looks professional and blends in well with the furniture without looking like a cheap plastic holder.
The Cons:
Pocket Depth: One thing to keep in mind is that the pockets are fairly deep. If you have very small remotes, they can slide down a bit far, making them slightly trickier to grab quickly.
Bottom Line:
This is a straightforward, no-fuss solution if you are tired of losing remotes in the couch cushions. It is well-made, looks good, and simply works. I would definitely recommend it to anyone looking to declutter their living space.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Nice look, perfect size and great price!
Color: Black, Size: Small
Absolutely perfect for 5 remotes. The bins are deep and very wide. It's a very reasonable price and it's compact size fits in smaller spaces so it doesn't take up a lot of room. Also, you can't beat the price and genuine leather. Good in any room.
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Reviewed in the United States on March 27, 2026