>>>>>That said, explosions are funny things - I was taught that the forces generated usually follow the path of greatest resistance, which is a bit counterintuitive. You can, for example, use explosives to fell trees: http://www.fs.fed.us/t-d/pubs/pdfpubs/pdf08672325/pdf08672325dpi72.pdf
>>>>
>>>>I was once told by the Ontario Fire Marshall, that there is technically no such thing as an explosion; only rapid burning. Although he did point out that if it was rapid enough that he couldn't outrun it, he'd be willing to accept the use of the word.
>>>
>>>Tsk, tsk... the narrow-sighted specialist. Does he know there are explosions entirely without fire? Try boiling an egg in a microwave. Or an ampoule under a lens, using just sunshine.
>>
>>You mean this is not just a deflagration?
>>
>>anyway if you boil the egg in the microwave it will possibly crack as usal but nothing more. Boiling would mean to cover it with water and put into the microwave. :)
>
>You bring it to boiling by introducing enough energy to it - from outside or, in case of microwave, from within it's inner surface layer.
>
>How do you boil water? Put it in water and boil that outer water first?


OMIPU
Now I'm run into a formular to calculate the boiling time of an egg.
http://www.eierfans.de/eirechner-wie-lange-eier-kochen/