The world’s strongest currency against the new euro turns out to be the lowly Thai baht, at least when comparing the value of the 10 baht coin. It is the same size and weight as the 2 euro coin, and thus has been turning up in vending machines all over Europe. Spent that way, the 10 baht coin has almost eight times its normal value. Red-faced European officials are trying to find ways to set vending machines so they can recognize the subtle differences between the two coins. Thailand’s coin has been in circulation since 1989.