Can I Use a Power Supply with a Higher Wattage Rating on my Laptop?

Can I Use a Power Supply with a Higher Wattage Rating on my Laptop?
Swapping power supplies It can be kind of complicated and confusing if you’re not familiar with how a power supply (and to some degree, electricity itself) works. The short rules boil down to this: The output connector must match. The polarity of the output connector must match. The output voltage must be the same. In addition, The output amperage must be greater than or equal to that required by the laptop. or: The...

A pot-in-pot refrigerator or zeer (Arabic: زير‎)

Refrigerate foods without using electricity -this mode of refrigeration goes back at least 5000 years. It uses a porous outer earthenware pot, lined with wet sand, contains an inner pot (which can be glazed to prevent penetration by the liquid) within which the food is placed - the evaporation of the outer liquid draws heat from the inner pot. The device can be used to cool any substance. Have any of you tried this. More info - http://en.wikipedia.org/wi