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Description
In Pursuit of the Unknown: 17 Equations That Changed the WorldThe seventeen equations that form the basis for life as we know it. Most people are familiar with history's great equations: Newton's Law of Gravity, for instance, or Einstein's theory of relativity. But the way these mathematical breakthroughs have contributed to human progress is seldom appreciated. In In Pursuit of the Unknown, celebrated mathematician Ian Stewart untangles the roots of our most important mathematical statements to show that
The seventeen equations that form the basis for life as we know it. Most people are familiar with history's great equations: Newton's Law of Gravity, for instance, or Einstein's theory of relativity. But the way these mathematical breakthroughs have contributed to human progress is seldom appreciated. In In Pursuit of the Unknown, celebrated mathematician Ian Stewart untangles the roots of our most important mathematical statements to show that equations have long been a driving force behind nearly every aspect of our lives. Using seventeen of our most crucial equations -- including the Wave Equation that allowed engineers to measure a building's response to earthquakes, saving countless lives, and the Black-Scholes model, used by bankers to track the price of financial derivatives over time -- Stewart illustrates that many of the advances we now take for granted were made possible by mathematical discoveries. An approachable, lively, and informative guide to the mathematical building blocks of modern life, In Pursuit of the Unknown is a penetrating exploration of how we have also used equations to make sense of, and in turn influence, our world.Binding Type: Paperback
Publisher: Basic Books
Published: 10/08/2013
ISBN: 9780465085989
Pages: 342
Weight: 0.78lbs
Size: 8.23h x 5.61w x 0.94d
Review Citations: Books & Culture 11/01/2014 pg. 24
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★★★★★ 5
Great value; great products
Size: 8.45 Fl Oz (Pack of 1)
Anua products are great. They are reasonably priced, easy to use and make your skin look and feel lovely. I really enjoy the ease of these and the small amount you use with each application. They're non irritating and leaves your skin feeling moisturized without the heavy oily feeling.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
My New Holy Grail! ⟡
Size: 8.45 Fl Oz (Pack of 1)
Finally Azelaic Acid that don't break me out. I've tried US skincare and they are nothing but harsh to my skin. I've tried korean skin care before but I guess I wasn't buying the product that targets my skin concerns. Now that I'm giving korean skin care a second go, it did not disappoint! I can see my skin improving! ⟡
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great product!
Size: 8.45 Fl Oz (Pack of 1)
Love how it makes my skin look and feel
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Love it!
Size: 8.45 Fl Oz (Pack of 1)
The skin absors it completly. Great for oily skin.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
So glad I finally tried this totally worth it!
Size: 8.45 Fl Oz (Pack of 1), Size: 8.45 Fl Oz (Pack of 1)
I love Korean skincare and have been wanting to try Anua for a while, but I always found it a little on the pricier side. I was placing a Black Friday order and snagged this toner for $15, and I’m so glad I did! I originally wanted to try their azelaic acid serum, but since I already use a lot of serums, seeing it in toner form felt perfect — and it really is.
I’ve been using this morning and night, and my skin already looks brighter. I have a lot of acne scarring, and even in the short time I’ve been using this, I’ve noticed visible improvement. It’s super gentle, not harsh at all, and has a light, pleasant scent (which doesn’t seem like added fragrance).
My skin is extremely acne-prone, and this hasn’t broken me out whatsoever. If anything, it feels calming. So far I’ve truly enjoyed this product, and I definitely recommend it if you’re looking for something soothing that actually helps with texture, spots, and overall clarity!
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Reviewed in the United States on December 10, 2025
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