Built book cover

Built by Roma Agrawal Summary

Built
Roma Agrawal
4.13 (1330 Reviews)
Science
Technology
History
概要
主なポイント
著者
よくある質問

Overview of Built

"Built to Last" reveals how visionary companies outperform competitors through enduring principles. Translated into 17 languages with 55 months on Business Week's bestseller list, it's influenced organizations beyond business - from churches to governments. What timeless secret makes these companies thrive while others fail?

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クイックサマリー12分

著者の声を通じて本を感じる

深堀り42分

知識を魅力的で例が豊富な洞察に変換

フラッシュカード9件の洞察

キーアイデアを瞬時にキャプチャして素早く学習

エンタメ25分

楽しく魅力的な方法で本を楽しむ

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重要なポイント

1

The Invisible Forces Holding Your World Together

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Ever bent a carrot into a U-shape and watched it snap? That simple kitchen moment reveals the same physics keeping skyscrapers standing. The carrot splits at the bottom because tension forces overwhelm it-the exact challenge engineers face when designing every beam, bridge, and building around you. When a beam flexes under load, its top compresses while its bottom stretches. This is why steel beams are I-shaped, with most material concentrated at top and bottom where forces are strongest. It's elegant efficiency: maximum strength with minimum material. For spanning great distances, engineers turn to triangles-nature's most stable shape. Unlike squares that collapse when pushed, triangles lock in place, which is why bridges like the Golden Gate use networks of triangular trusses. But gravity is the easy part. Wind presents far more complex challenges. Modern skyscrapers rely on central cores running vertically through buildings, channeling wind forces down to foundations like a tree's trunk. Some buildings, like London's Gherkin, wear their skeletons on the outside-diamond-patterned steel exoskeletons protecting from wind. Here's what most people don't realize: buildings actually move. The engineering challenge isn't preventing movement but controlling how fast structures sway and for how long. It's like turbulence on an airplane-not the movement itself but the acceleration that makes us queasy. When traditional stiffening isn't enough, engineers install giant pendulums at the top of buildings to counteract movement. During 2015's Typhoon Soudelor, Taipei 101's massive 660-tonne steel pendulum swung a full meter while winds reached 170km/h, yet the building remained undamaged. Earthquakes present even greater challenges. The Torre Mayor skyscraper in Mexico City uses 96 hydraulic dampers arranged in X-shapes throughout its height, allowing it to withstand a 7.6 magnitude earthquake without occupants even noticing-the ultimate testament to invisible engineering excellence.

2

When Buildings Fall: The Disasters That Changed Everything

3

From Ancient Clay to Modern Steel: The Materials That Built Civilization

4

Concrete: The Liquid Stone That Shaped Our Modern World

5

Reaching for the Sky: Why We Build Tall and How We Make It Safe

6

The Hidden World Beneath Our Feet: Engineering the Invisible Infrastructure

7

Building Tomorrow: From Ancient Wisdom to Future Dreams

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クイックサマリーモード - 『Built』の要約を12分で読む・聴く

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『Built』を12分で要約

『Built』の核心的なアイデアを分かりやすいポイントに分解し、革新的なチームがどのように創造、協力、成長するかを理解します。

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フラッシュカードモード - 『Built』から厳選した9の洞察

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『Built』から厳選した9の洞察

『Built』を素早い記憶のヒントに凝縮し、率直さ、チームワーク、創造的な回復力の主要原則を強調します。

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エンタメモード - 『Built』のレッスンを25分のストーリーで

エンタメ
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『Built』のレッスンを25分のストーリーで

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あなた自身の方法で『Built』を体験。

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117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
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comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
star
star
star
star
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"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
platform
comments
96
likes
4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP
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"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon
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"It is great for me to learn something from the book without reading it."

@OojasSalunke
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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
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"Makes me feel smarter every time before going to work"

@Cashflowbubu
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@Moemenn
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"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
platform
comments
12
likes
117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
platform
star
star
star
star
star

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
platform
comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
star
star
star
star
star

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
platform
comments
96
likes
4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP
platform
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"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon
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comments
201
thumbsUp
16

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@OojasSalunke
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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

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37
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