The effect is called the Lenz Effect. The moving magnet causes small magnetic fields, called eddy currents, to form in the metal (brass, aluminum foil/tube ...). These eddy currents have their own magnetic field (all electrical currents do). This is what is interacting with the moving magnet.
1 Limited use: The Angel Card can only be used in Victoriaâs Secret and PINK stores. 2  While you may also use the card at Bath & Body Works stores, you will not earn Angel Reward points on those purchases.
The Discover Card website does list the UK as somewhere Discover is accepted (https:/â¦europe.html). It looks like you can use a Discover Card to get cash at any LINK ATM (pretty much all UK ATMs are part of the LINK network), but that would involve paying whatever cash advance fees and interest rates are applicable.