Avocados are high in fat. But it's monounsaturated fat, which is a good fat that helps lower bad cholesterol, as long as you eat them in moderation. Avocados have a lot of calories. The recommended serving size is smaller than youâd expect: 1/5 of a medium avocado (or 1 ounce) is 50 calories.
Why do transformers hum? Transformer noise is caused by a phenomenon which causes a piece of magnetic sheet steel to extend itself when magnetized. When the magnetization is taken away, it goes back to its original condition. This phenomenon is scientifically referred to as magnetostriction.
This is likely caused by one of your fans. If one has collected dirt over time it can cause a loud humming sound when active. Try and figure out which one is causing the noise, if it's not the CPU fan, you can probably clean it yourself using a can of compressed air or a vacuum cleaner (careful with the PC components!). If it is the CPU fan, it may be best to have an expert clean or replace it.