Space Shuttle thermal protection system
On February 1, 2003, the Space Shuttle "Columbia" was destroyed on reentry due to a failure of the TPS. The investigation team found and reported that the probable cause of the accident was that during launch, a piece of foam debris punctured an RCC panel on the left wing's leading edge and allowed hot gases from the reentry to enter the wing and disintegrate the wing from within, leading to eventual loss of control and breakup of the shuttle.
Reconstruction era
The Panic of 1873 (a depression) hit the Southern economy hard and disillusioned many Republicans who had gambled that railroads would pull the South out of its poverty. The price of cotton fell by half; many small landowners, local merchants and cotton factors (wholesalers) went bankrupt. Sharecropping for black and white farmers became more common as a way to spread the risk of owning land. The old abolitionist element in the North was aging away, or had lost interest, and was not replenished. Many carpetbaggers returned to the North or joined the Redeemers. Blacks had an increased voice in the Republican Party, but across the South it was divided by internal bickering and was rapidly losing its cohesion. Many local black leaders started emphasizing individual economic progress in cooperation with white elites, rather than racial political progress in opposition to them, a conservative attitude that foreshadowed Booker T. Washington.