Sentence examples for real coin from inspiring English sources
This would guarantee you a single real coin.
A quarter comes up heads four times in a row, and we suspect that it is not a real coin.
The participants perceived more than nine out of ten of the real coin tosses across all 50 trials.
Every time they don't balance and a real coin is found (and taken by the evil Zoltar) throw away the corresponding false coin.
Again, the participants saw nine out of ten of the real coin tosses, and about six of the first ten simulated tosses.
"I generally just put them off to the side in a drawer, because there's no real coin slot for them in the cash register".
Tinkering with the metal content of the nickel is more challenging than tinkering with that of the penny, because nickels are used in vending machines and vending machines distinguish real coins from slugs by measuring size and weight.
For example, if you have one heavy counterfeit coin and 80 identical real coins as well as a traditional balance, then the result of every measurements has three answers (left heavier, right heavier, equal) and you need at least four measurements to distinguish the 34=81 different possible states (which of the 81 coins is heavy).
Unfortunately, real coins are always biased.
Untracebility and unlinkability are the two main properties of real coins for successful electronic mimicking.
