resnikov
Bushcrafter (boy, I've got a lot to say!)
Back in Oz an ex soldier showed me a trick - a tray with dry sand, pour some petrol in it (not enough to be visible above the sand) then light it. Sometimes a bit of paper on top of the sand is needed to get it going. The petrol burns without a visible flame. He said that was their standard emergency cooker.
That is a benghazi burner, as seen in "Ice Cold in Alex" its one of the things that helped them unmask the german spy. My granddad told me about using them when he was in North Africa in WWII.