A Big Bang!

Do we have long to wait for the answer? Do you live near an RAF station?

No I cannot guess but I am intrigued ?

I have heard some seed pods make quite an explosion when they burst ,but not sure I could have mistaken them for a pistol shot. or possibly a breaking branch.
Best I can do.lol

Seed pods from several plants when they explode (some with great force) make popping noise.

Linda, Dawn, Brian and Klahanie, thanks :)

B & K you are on the right lines! There were several ripe seed pods from my perennial sweet pea (Lathyrus) in a tray, and in the warmth they burst in a spiral shape and all the seeds fly quite some distance! It's loud enough to make you jump :)

Ah! I can sleep tonight then. ?

Well...I learned something new today! Yippie!! A crack of thunder was the best I could do. lol! Thanks Shelia.

I'm not surprised, Paul, as it's the first time I've experienced this :))

I see. Haha. Better get some safety glasses. ?

I've learnt to put the ripe pods in a box with the lid on, Dawn, so that I don't lose too many seeds!

Haha

You dont want those hitting you in the eye! ;)

Too true, Karen :)