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Description
Spherical ModelsWell known through the work of Buckminster Fuller, models of spherical polyhedral excite the imaginations not only of mathematicians, architects and engineers but also of artists and designers. This book, concerned with polyhedrons, sphere tilings, and dome structures, offers a well illustrated, practical approach to creating a host of beautiful and interesting models, including starfaced spherical forms that can serve as basic structures for geodesic
Well known through the work of Buckminster Fuller, models of spherical polyhedral excite the imaginations not only of mathematicians, architects and engineers but also of artists and designers. This book, concerned with polyhedrons, sphere tilings, and dome structures, offers a well-illustrated, practical approach to creating a host of beautiful and interesting models, including starfaced spherical forms that can serve as basic structures for geodesic domes.Employing only the most elementary mathematical principles, the text initially provides complete instructions for making spherical models from five regular solids, using only circular bands of paper, a ruler and a compass. Also discussed is tessellation, or tiling, on a sphere and how to make spherical models of all the semiregular solids. The volume concludes with a discussion of the relationship of polyhedral to geodesic domes and directions for building models of the domes.
Abundantly illustrated with photographs, drawings, and computer graphics of attractive geometrical models, this volume will appeal to a wide range of readers--from students and teachers of mathematics, art, design, architecture and engineering, to recreational mathematics enthusiasts and builders of geodesic domes.
Binding Type: Paperback
Publisher: Dover Publications
Published: 06/13/2012
ISBN: 9780486409214
Pages: 180
Weight: 1.00lbs
Size: 10.89h x 8.08w x 0.45d
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★★★★★ 5
Lip balm with sunscreen
Size: 0.15 Ounce (Pack of 1)
Love this balm and use it almost daily.. I buy it specifically for the sunscreen in it. It goes on smoothly with a light shine. No stickiness or feeling heavy. The tube is a nice size to hold on when using and lasts for a long time.
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Reviewed in the United States on April 28, 2026
★★★★★ 1
Refund please - I did not order and/or receive this item
Size: 0.15 Ounce (Pack of 1)
I was charged for this item, but I did not order or even received it. I have written via the "return" page my situation and requested a refund to no avail. The items is actually a great item, and I have ordered it in the past and like it. However, I'm frustrated to be billed for something I didn't order and/or even receive. I hope this results in a refund.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Solid performer lip SFP.
Size: 0.15 Ounce (Pack of 1)
I’m outside constantly. Walking and training dogs. Working in the garden. Playing pickleball. I needed a good spf lip balm that was easy to put on and did not taste perfumery or gloopy. This one is great. I LOVE the little canister that screws on and off so it doesn’t pop off in my purse. And the consistency is stable despite heat and cold.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great Sun Protection but Texture Could Be Better
Size: 2-Pack (0.15 Ounce each)
The Dermatone Mineral Lip Balm provides really good SPF 30 protection and keeps my lips from getting sunburned during outdoor activities. I like that it’s reef safe, oxybenzone free, and made with mineral-based ingredients, which makes it feel like a healthier option compared to many other lip balms. It does a decent job moisturizing, and the compact size is convenient to carry anywhere. However, the texture feels a little thicker and waxier than I expected, especially in cooler weather. It still works well overall, but I wish it applied a bit smoother. For anyone needing reliable sun protection for their lips, this is still a solid product worth trying.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Great spf lip balm
Size: 2-Pack (0.15 Ounce each)
I use some of their other products when hikig and mountaineering. This lip balm compaired to their others is less mediciney but still does a great job of protecting your lips from sun burn. It goes on hard and lasts all day.
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Reviewed in the United States on May 23, 2026