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Description
Rube Goldberg's Big Book of BuildingWritten by the famed inventors granddaughter herself for builders of all ages, this is the only official guide to building 25 kid friendly Rube Goldberg Machines at home To build a Rube Goldberg Machine, all you need is a pile of junk and a great imagination. Rube Goldbergs granddaughter, Jennifer George, has teamed up with world renowned Rube Goldberg machine builder Zach Umperovitch to show us just how true that is in this comprehensive guide to
Written by the famed inventor’s granddaughter herself for builders of all ages, this is the only official guide to building 25 kid-friendly Rube Goldberg Machines at homeTo build a Rube Goldberg Machine, all you need is a pile of junk and a great imagination. Rube Goldberg’s granddaughter, Jennifer George, has teamed up with world-renowned Rube Goldberg machine builder Zach Umperovitch to show us just how true that is in this comprehensive guide to building Rube Goldberg Machines at home. Written in partnership with Rube Goldberg’s granddaughter herself, Jennifer George, this book breaks down how to build a variety of machines that solve simple problems in complex ways. Progressing in difficulty with each chapter, kids (and builders of all ages) will learn how to construct super simple machines that fit on a tabletop, to hard ones that take up entire rooms or yards! Learn how to start chain reactions that refill your popcorn automatically on movie night, open umbrellas, and even pack a picnic, one step at a time. Filled with jokes, fun facts, and tips and tricks to make building as successful as possible, this book is sure to satisfy every family’s most curious and inventive minds!
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Works great!
These dissolve easily and have a nice mint flavor. I usually only need a half and helps me fall asleep quick!
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Reviewed in the United States on May 23, 2024
★★★★★ 5
No after affects
I've been taking Melatonin for about 48 yrs. And has no after affects. I take it as needed. I've taken 1mg to 5mg. depending what kind of a day I've had. The pill is very small. I like the orange and peppermint flavors. The best time to take it is about 45mins. before you would go to bed.
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Reviewed in the United States on July 22, 2024
★★★★★ 5
Do you want a good night sleep?
Natural and Gentle I sleep well and wake up feeling normal
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Must buy!
Best melatonin, my kids like it. Would buy anything else.
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Reviewed in the United States on December 21, 2025
★★★★★ 4
Source Natural is a good brand but I find 5 mg too strong and need to split them.
As a person with sleep problems due to illness I can say that this melatonin works to get me to sleep sooner. I don't sleep most of the night without it and this brand works better than others I've tried. I can't use 5 mg though and find 2.5mg better. I'm cutting them in half and don't plan to order 5 mg. again.
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Reviewed in the United States on May 30, 2017