There's all kinds of worrying little surprises about the code


Federal team that looked into the 9 11 attacks from an engineering and fire safety perspective that day of 9 11 yet two stairwells 44 1 56 to serve Literally over 10,000 people. Impulse buildings that number 44 inches. It's not arbitrary, but it is outdated. Glenn says it comes from all the way back to World War one. The average shoulder width of a soldier was 22 inches, then, so the code doubles that to 44 wide enough for one person to go down while another goes up. Only when you walk. You don't walk like straight down. If you actually take a film of someone walking, slow it down. You see that the top of their

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