
82. Mrs. P’s Journey by Phyllis Pearsall
83. River of Doubt by Candice Millard
84. Longitude by Dava Sobel
85. Dreaming in Code by Scott Rosenberg
86. The Last Viking - A biography of Roald Amundsen
87. The Wager by David Grann
88. Simply Fly by Captain G. R. Gopinath
89. Engines That Move Markets by Alasdair G. M. Nairn
90. The Education of Cyrus by Xenophon
91. Boyd: The Fighter Pilot Who Changed the Art of War by Robert Coram
92. Madhouse at the End of the Earth by Julian Sancton
93. How to Make a Spaceship by Julian Guthrie
94. West with the Night by Beryl Markham
95. The Age of Uncertainty by Tobias Hürter
96. American Steel by Richard Preston
97. Showstopper by G. Pascal Zachary
98. Eccentric Orbits by John Bloom
99. The Great Bridge by David McCullough
100. Loonshots by Safi Bahcall
101. The Art of Doing Science and Engineering by Richard Hamming
102. Where Wizards Stay Up Late by Katie Hafner
103. The Evening Star by Henry S. F. Cooper
The amount of steel in use per capita in developed countries seems to have reached a constant level. About 69% of steel produced in the US is the same steel going round and round. If you ignore rebar, low-grade steel stuck inside concrete, it's even higher. It's the developing countries that are still making and using new steel. They don't have enough steel infrastructure yet.
"Mini-mill", in this context, means "smaller than a square mile". Here's Nucor's Crawfordsville plant.[1] It's not small. Compare with US Steel's Gary Works.[2] That century old plant is just about their last remaining big plant in the US.
US Steel somehow missed this change.
[1] https://earth.google.com/web/@39.97805108,-86.8271336,264.41...
[2] https://earth.google.com/web/@41.62932676,-87.36187513,174.7...
The eutectic of iron and carbon (mixture with the minimum melting point) is 4.3% carbon by mass.
There's a chapter from Richard Preston's "American Steel" (a 1992 book that I highly recommend about the Nucor minimill in Crawfordsville, Indiana) where they find at one point during the startup of the then-cutting-edge continuous casting line that the steel in arc furnace had too little carbon. They decided to solve that (expensively, for the purpose of the testing) by dipping the electrodes into the steel and letting their ends dissolve.