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Quantum coin flipping uses the principles of quantum mechanics to encrypt messages for secure communication. It is a cryptographic primitive which can be used to construct more complex and useful cryptographic protocols, [2] e.g. Quantum Byzantine agreement .
Coin flipping, coin tossing, or heads or tails is the practice of throwing a coin in the air and checking which side is showing when it lands, in order to randomly choose between two alternatives. It is a form of sortition which inherently has two possible outcomes. The party who calls the side that is facing up when the coin lands wins.
The shill then feigns a call with a friend who they claim is a coin collector, but after the call their tone changes from bemusement at the apparent gall of the con artist to a more serious one; when the con artist returns, the shill immediately asks if they can give the con artist some of the money now and return later with the full amount.
The concept of Discord came from Jason Citron, who had founded OpenFeint, a social gaming platform for mobile games, [ 13] and Stanislav Vishnevskiy, who had founded Guildwork, another social gaming platform. Citron sold OpenFeint to GREE in 2011 for US$104 million, [ 14] which he used to found Hammer & Chisel, a game development studio, in ...
This page was last edited on 27 July 2004, at 04:28 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may ...
The outer coin makes two rotations rolling once around the inner coin. The path of a single point on the edge of the moving coin is a cardioid.. The coin rotation paradox is the counter-intuitive math problem that, when one coin is rolled around the rim of another coin of equal size, the moving coin completes not one but two full rotations after going all the way around the stationary coin ...
A bulletin board system ( BBS ), also called a computer bulletin board service ( CBBS ), [1] was a computer server running software that allowed users to connect to the system using a terminal program. Once logged in, the user could perform functions such as uploading and downloading software and data, reading news and bulletins, and exchanging ...
The slash is the oblique slanting line punctuation mark /. It is also known as a stroke, a solidus, a forward slash and several other historical or technical names. Once used to mark periods and commas, the slash is now used to represent division and fractions, exclusive 'or' and inclusive 'or', and as a date separator .