This is a cabin window on a modified B-29 with a dummy in the seat, testing the effects of explosive decompression.
In the youtube comments, someone asked in a comment "did he died?" To which someone else responds "are you [effing] retarded?"

[yt]EHGBQINW0B0&feature=related[/yt]
In the youtube comments, someone asked in a comment "did he died?" To which someone else responds "are you [effing] retarded?"
[yt]EHGBQINW0B0&feature=related[/yt]