Nyctohylophobia

MYTH Concrete was pulverized due to explosives in the WTC

Gravitational collapse is a perfectly adequate explanation of the pulverized concrete. Keep in mind that less than 1/3 of the dust was made up of concrete, and that most of the dust particles were bigger than 60 microns, with up to a 5th exceeding 300 microns in size. WTC7.net webmaster Jim Hoffman's calculations involve numerous flawed assumptions. The alleged energy deficit is removed if the relative humidity of the clouds' contents was slightly above 2%. Wind, etc. also contribute to the clouds' expansion, not simply heat. Heat was added from office contents, the jet impacts, the burning fuel, etc. How much of the concrete was turned into dust, anyway? A common complaint is that the cores should have remained standing; this is not so. The cores were destroyed by the grinding force of the massive collapsing buildings, and lacked diagonal bracing which would've given them lateral strength. They didn't turn to dust; when they collapsed they pushed air out and were obscured by dust.

9/11
WTC
Twin Towers
Controlled Demolition