From David Pilgram
For the sake of safety, please inform your readers not to use domestic vacuum flasks, especially glass-lined ones, to collect liquid nitrogen from a laboratory, as suggested in the item “Home lab: make liquid nitrogen ice cream” in your book 100 things to do before you die. I hope laboratories would refuse to dispense the nitrogen into such flasks, in any case.
The explosion of an unmodified flask containing liquid nitrogen was the most shocking incident in my career. I still have the scars from it.
London, UK
