Video: 'Ghosts' smash glass at auction house

[303Guy]

I've had a windscreen suddenly shatter. The vehicle had rolled so the glass would have been under tension and as it stood in the hot sun I suppose the stress reached a critical point. Then a rear windscreen shattered for no apparent reason. It was very old and very old windscreens can and do spontaneously shatter or they crack easily.

In this case, the door actually swings open which tells us there were some stresses involved there.

We sense that it is a solid, however, it is a super cooled liquid.

But is still a solid. There was/is a myth that old shop windows gradually flow over time leaving the bottom thicker than the top. The truth is the glass was made that way in the past and the glaziers always put the thicker side down. Glass does not flow and normal temperatures. Toughened glass does seem to build up internal stresses over time (or become brittle). I sometimes deal with armoured glass and we have to be very careful not to bump it on a corner. The whole pain cracks up (not shatter or explode)

[Tobiashen]

I watched the video and don't know what it was, but I don't have the feeling it was anything supernatural at all. It just didn't give me that feeling. I don't know how else to put it.

[joe from dayton]

Originally Posted by cachibatches

As the wood framing ages it warps. That changes the tension on the glass.

Pop!

No ghosts here folks.

You can tell by looking at the movement of the glass that it wasn't broken by an external force.

[HOSS429]

the thing on the floor in front of the door looks like a work mans tool box .. you can see the glass swing open a bit as if it had came out of the frame ..