What would cause a pen to burst all on it own?

Question

I was laying on my bed two days ago and i was texting my friend. There was a pen on my bed cause i was working on a presentation a few hours earlier and i still had papers and a pen on my bed. I was laying there and I hadn't moved for at least 20 minutes. All of a sudden I heard like a popping noise and I looked over and I saw that the pen had just burst all on it own. It just burst into 4 or 5 parts. Half of it flew onto the floor and the other half stayed on the bed. The ink part stayed intact. It was not hot in my room. The air-conditioner wasn't on. I didn't touch the pen. I wasn't leaning on it. I hadn't touched it for at least an hour. What would cause this to happen?

Answer 1

I guess the same thing that causes them to burst everytime i put one in my shirt pocket.

Perhaps you sat on it and cracked the plastic to get it started. Lots of things could have happened. Certainly this is not a question for paranormal, but a question for the physics or mechanics section. Why do pens periodically burst? Good question.

Answer 2

Pressure. It may no have been hot to you but the ink can heat up fairly easy.

Answer 3

Pressure change in the atmosphere.

Answer 4

I don't know.  It was just a cheap pen I guess.

Was there a spring in it?  Did it s***w together?  Those are two ways of storing energy.

Answer 5

....pressure...or ghosts.  ;)

Answer 6

hea? pressure?

Answer 7

That's very surprising but not unheard of. Polymeric materials can and often do have stress (think of it as a pent-up force) frozen into them when they are solidified from the liquid state. Plastics can crack from this stress as they age, and perhaps even shatter under some circumstances. It's not a pressure build-up, but rather a weakening of the polymer material under the built-in stress. I think your experiences is very unexpected but not impossible. It's important to keep in mind that unexpected does not equal paranormal.

Answer 8

ghosts..defenetly

Answer 9

pressure build up

Answer 10

Anything from pressure to faulty make