I don't actually know where to post this but I know that family nairalanders might be of help.

Plz can someone explain the secret behind this phenomenon, I noticed that when you boil water and pour it in a glass the glass will break immediately but when you put a spoon inside the tumbler before pouring the water nothing will happen.

I don't knw abt it.
Will give it a try

I think because spoon takes out the vapour.

The hot water poured into a glass cup makes heat transfer into the thickness of the glass (and tend to expand the glass molecules). The outside of the glass remains relatively cold to the inside. If the heat difference is large enough, it creates a pressure on the glass that cracks/breaks it. The metal spoon simply transfers the heat from the water to itself by conduction thereby lowering the heat in the water. This in turn reduce the pressure due to lower heat difference and glass doesn't break.

DonOms:
The hot water poured into a glass cup makes heat transfer into the thickness of the glass (and tend to expand the glass molecules). The outside of the glass remains relatively cold to the inside. If the heat difference is large enough, it creates a pressure on the glass that cracks/breaks it. The metal spoon simply transfers the heat from the water to itself by conduction thereby lowering the heat in the water. This in turn reduce the pressure due to lower heat difference and glass doesn't break.

Very correct sir

DonOms:
The hot water poured into a glass cup makes heat transfer into the thickness of the glass (and tend to expand the glass molecules). The outside of the glass remains relatively cold to the inside. If the heat difference is large enough, it creates a pressure on the glass that cracks/breaks it. The metal spoon simply transfers the heat from the water to itself by conduction thereby lowering the heat in the water. This in turn reduce the pressure due to lower heat difference and glass doesn't break.

Fantastic explanation!

its called shared burden.

the spoon takes on some of the pressure, hence the glass remains intact.


did this really call for a thread?

I'm sure its on google.

try to theorize about things that can help make Nigeria developed, not all this nanotechnical jumbo.

you nor even put am for science section, na for inside family and general section you dump am.

nbo ni won tin ko enyin enyan yi wa?

@tpiander dat isn't nanotechnology it's jst basic physics.

noted.