Its an ice allergy - there is an actually medical name for it but athletic trainers call it an ice allergy. I have the same problem and I went to the Doctor and they told me just to take an antihistamine before being in the cold for a extended period of time. I know my friends who are athletic training majors have to ask all the players if they have an ice allergy before they wrap them in ice - so its not like its completely unheard of.
I notice whenever I use products w/Titanium Oxide, I break out in hives. Any sort of contact, for example if my children have lotion or sunblock on I might kiss them on their check and I will break out on my lip.
Friction is caused whenever two surfaces come in contact and slide against each other. Anything can cause friction.
Contact forces are defined as a force that can change or cause the motion of an object by touching it. Between two objects, a contact force acts at the point of contact.
age, faulty construction, collision with another object, whatever you think would cause it to break
That will happen if the force applied is less than the limiting value of the friction between the object and the surface that it is in contact with.
When temperatures changes this can cause the molecules in an object to contract [ at low temperatures ] or to expand [ high temperatures ] . Glass is a fragile object and if the molecules in glass contract or expand quickly this can cause the glass to break . [SRM] .
friction acts on materials that are in contact
friction causes the object in motion to slow down and finally stop. The natural condition of an object that is in motion is to stay in motion. Only friction (the object in contact with another object at rest) will cause the object in motion to lose its motion.
Whenever an electrical contact is made or broken, an electrical spark jumps through the air between the two contact points while they are very close together but not yet, or not any longer, touching. That spark jumping is an electrical arc and the event is arcing contact. The main cause of arcing is the property of a circuit to maintain the continuity of the current, so whenever the contacts separate to break the circuit the air (or any dielectric medium that is used) ionises and continuity of the current is maintained, at least momentarily.
Any unbalanced force will cause an acceleration.
Internal stress exceeds the strength of the material. The cause of the stress is that the "leading edge" of the object stops while the "trailing edge" is still moving.
Microwaves do not heat evenly. If one part of the glass object is heated more than others, and if the object had some kind of stress fracture (which may well be invisible to the naked eye) the expansion of the heated part may cause cracks to form, and break the object.