<p>In her new book <a href="https://amzn.to/42IsgM1"><i>Nuts and Bolts: Seven Small Inventions That Changed the World (in a Big Way)</i></a>, structural engineer <a href="https://amzn.to/42IsgM1">Roma Agrawal</a> identifies and examines the seven of most basic building blocks of engineering that have shaped the modern world: the nail, the wheel, the spring, the lens, the magnet, the string, and the pump.</p><p><a href="https://amzn.to/42IsgM1"><i>Click here to get the book!</i></a> Available for pre-order at <a href="https://wwnorton.com/books/nuts-and-bolts">W. W. Norton in the US</a> and <a href="https://uk.bookshop.org/p/books/nuts-and-bolts-seven-small-inventions-that-changed-the-world-in-a-big-way-roma-agrawal/7346779?ean=9781529340075">Bookshop.org in the UK</a>.</p><p><a href="https://99percentinvisible.org/?p=40247&post_type=episode">Nuts and Bolts</a></p>
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