zephyr 12
Member
- Messages
- 241
Some police agencies have thermal imaging devices that can detect heat signatures through walls. Essentially letting them know someone is in a house because of the heat signature.
Do you think there will come a day when this technology would be used to "see" through the back of a card to see the shapes of what is on the face of a card?
Do you think there will come a day when this technology would be used to "see" through the back of a card to see the shapes of what is on the face of a card?