Card skimming

Card skimming is a type of fraud that occurs when an unauthorized person copies the information from the magnetic stripe on the back of a credit or debit card. This information can then be used to create a counterfeit card that can be used to make unauthorized purchases. Card skimming is a serious problem because … Read more

Mosquito teen repeller (Teen Buzz)

A mosquito teen repeller is a device that emits a high-pitched sound that is intended to repel mosquitoes. The sound is inaudible to adults, but teenagers can hear it. The theory is that the sound will keep teenagers away from areas where mosquitoes are present. What age do you stop hearing mosquito? The answer to … Read more


A substrate is a material used as the foundation or base for creating a circuit or other electronic component. The substrate material must have certain properties in order to be suitable for circuit fabrication, including high electrical insulation, high mechanical strength, and high thermal conductivity. Common substrate materials include glass, ceramic, and plastic. What is … Read more