Microwave ovens work by exciting water molecules and polarized molecules within the food, such as fats and sugars. There are none of these in the microwave's internal casing, which is also resistant enough to the heat produced during operation.
Only put Microwave safe plastic in the microwave so it wont melt. Microwaves break glass because plastic is more solid
Although metal can get very hot a microwave does not produce enough energy to heat most metals to their melting points.
Presuming it's plugged in OK, and that there are no weird settings on the keypad which preclude cooking. I'd pronounce it dead. New microwave ovens have become so inexpensive, that it's rarely worth having one repaired. FriPilot
Try a toaster oven, a hot plate and a grill.
Because cooking imply heating something up. Cold water wont heat your food
because we live in a world where people don't have time to eat breakfast so that they wont have to go to work on an empty stomach and they want to eat something that's quick and it takes less time to fix like a waffle a pancake and that's why Percy La Baron Spencer invented the microwave
we wont use copper as a heating element because it expands on heating and it can effect the thermostat
As A Matter Of Fact, They DO Melt. The Liquid Just Has To Be About A Degree Or Two Warmer To Melt It.
if it is hot water it tends to melt faster but if it is cold water it wont melt quickly
school glue is very easy and fast to use it wont melt
of course the icing then wont melt
copper, it wont melt or bend easilly