How tap to pay works

How does a contactless card reader initiate communication with a card?

Which payment method feels the most futuristic to use?

What material is most commonly used to make the hidden antenna inside a credit card?

At what exact frequency do contactless payment cards and readers communicate?

Which two companies co-developed the Near Field Communication (NFC) standard in 2002?

In what decade was the first patent for active Radio Frequency Identification (RFID) granted?

Which international standard governs the physical and electrical characteristics of contactless smart cards?

What scientific principle allows a contactless card to power up without a battery?

What is the maximum effective distance for a standard tap-to-pay transaction?