SKU: 87698822198

Nuts and Bolts : How Tiny Inventions Make Our World Work

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Nuts and Bolts : How Tiny Inventions Make Our World WorkAuthor: Agrawal, Roma General & world history Published on 8 February 2024 by Hodder & Stoughton (Hodder Paperback) in the United Kingdom. Paperback 320 pages 196 x 132 x 22 228g Shard engineer Roma Agrawal deconstructs our most complex inventions into seven fundamental objects: the nail, spring, wheel, lens, magnet, string and pump. 'Delightful' TIM HARFORD, FINANCIAL TIMES'Appeals to the nerdy side of just about all of us a great book to give' JANE

Author: Agrawal, Roma

General & world history

Published on 8 February 2024 by Hodder & Stoughton (Hodder Paperback) in the United Kingdom.

Paperback | 320 pages
196 x 132 x 22 | 228g

Shard engineer Roma Agrawal deconstructs our most complex inventions into seven fundamental objects: the nail, spring, wheel, lens, magnet, string and pump.

'Delightful' TIM HARFORD, FINANCIAL TIMES'Appeals to the nerdy side of just about all of us... a great book to give' JANE GARVEY'Splendid. Clearly written, elegantly structured full of facts you are unlikely to chance on anywhere else' DAILY MAIL*SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE * A TIMES BOOK OF THE YEAR*Smartphones, skyscrapers, spacecraft. Modern technology seems mind-bogglingly complex. But beneath the surface, it can be beautifully simple.

Tracing their journeys through the millennia, she shows us how handmade Roman nails led to modern skyscrapers, how the potter's wheel enabled space exploration, and how humble lenses helped her conceive a child against the odds. Eye-opening and engaging, Nuts and Bolts reveals the hidden building blocks of our modern world, and shows how engineering has fundamentally changed the way we live.

'A wonderful book' MARK MIODOWNIK'A masterclass in storytelling' JESS WADE'A riveting love letter to the small, wonderful, and mundane things that make the modern world.' ROMAN MARS*AS HEARD ON RADIO 4 START THE WEEK, OFF AIR WITH FI AND JANE AND 99% INVISIBLE*

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SKU: 87698822198

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Morgan S
Omaha, US
★★★★★ 5
Seem to run slightly larger
Size: 3T-4T, Unit Count: 112
These are cute and my son loves the Buzz picture on them. I buy multiple different pull ups, and these have been great however I do think they run slightly larger. The quality is great, we haven’t had any leaks, and my son loves to wear them. He can easily pull them up and down himself.
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Reviewed in the United States on September 17, 2024
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Draper, US
★★★★★ 4
Soft and comfortable for sensitive skinned toddlers
Size: 2T-3T, Unit Count: 76
I’ve been using the Pull-Ups Boys' Skin Essentials Potty Training Pants for a few months now, and overall, they’ve been a great help during potty training. One of the best features is the velcro sides, which make on-the-go changes a breeze—especially when I need to leave my toddler’s shoes and pants on. It’s incredibly convenient and saves time. The training pants are also very soft and comfortable, which is important for a toddler with sensitive skin. However, I did have to size up as my toddler quickly grew out of them. (wears a size 2t but he fits the 4t pullups better) While these Pull-Ups have worked well for daytime use, I have experienced some issues with overnight leaking. This can be a bit of a hassle, so I’m still experimenting with different strategies to manage that. Overall, though, they’re a solid choice for potty training and are very comfortable for my toddler. Highly recommend for daytime use, though you might want to consider something else for overnight protection.
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Reviewed in the United States on December 26, 2024
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Brice
Lowell, US
★★★★★ 5
Soft, Gentle, and Perfect for Sensitive Skin
Size: 2T-3T, Unit Count: 76
We use Pull-Ups Skin Essentials as “sleeping underwear” for nap time and bedtime with my mostly potty-trained son. He has eczema and is very sensitive to many diaper brands, but these have been amazing! They’re super soft, fit comfortably, and sit well on his skin without causing any rashes or breakouts. They also absorb well — we haven’t had any issues with leaks. A fantastic option for little ones with sensitive skin!
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monique
Houston, US
★★★★★ 5
No leaks or blowouts! Great for sensitive skin
Size: 3T-4T, Unit Count: 112
We swapped my son who has sensitive skin to these and its been about 3 weeks with zero issue. No leakage(I put them through heavy testing) and no blowouts so far!
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Reviewed in the United States on February 15, 2026
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Iryna
Grantham, US
★★★★★ 5
Excellent quality and adequate price
Size: Size 4, Unit Count: 120, Size: Size 4, Unit Count: 120
Got it — I’ll write you a strong, natural, insight-rich review I’ve been using these diapers consistently since my daughterwas born, and after several reorders, I feel confident sharing a detailed review for parents who are trying to decide. First, what really stands out is how lightweight yet absorbent they are. They don’t feel bulky when my baby is wearing them, which makes a noticeable difference in comfort—especially during longer stretches like naps or overnight use. Despite being light, the absorbency is reliable and holds up well throughout the day. One feature I truly appreciate is the quality of the inner filling. Unlike some other brands I’ve tried, the padding here does not become lumpy or uneven, even after extended wear. It stays evenly distributed, which not only improves comfort but also helps prevent leaks. Comfort overall is excellent. The material feels soft against the skin, and I haven’t noticed any irritation or redness. Another big plus for me is that these diapers are completely free of any strong odors or artificial scents. Some brands have a noticeable smell right out of the package, which I personally don’t like—but these are refreshingly neutral. Fit-wise, they stay in place well and don’t sag easily, even when full. That adds peace of mind, especially when we’re out or during overnight use. I’ve reordered these multiple times now, which says a lot. They’ve been consistently reliable, comfortable, and well-made. Based on my experience, I would definitely recommend them to other parents looking for a dependable everyday diaper. Overall, a solid choice that balances comfort, quality, and performance.
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Reviewed in the United States on March 20, 2026

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