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Clash Royale CLAN TAG #URR8PPP up vote 5 down vote favorite Noob alert! Can we run quantum safe algorithms on commercial devices (like phones, laptops, etc)? I've seen some messaging apps and vpn providers marketing themselves as quantum-proof. How likely is that all these claims are bogus for marketing (imo, very)? post-quantum-cryptography share | improve this question asked Aug 31 at 16:32 Ana-Maria 28 3 2 "Post-Quantum" commonly refers to algorithms that are secure against classical computers and quantum computers. They can run on classical computers. We are searching for practical PQC algorithms that we can use in place of classical asymmetric key algorithms. There is also "Quantum Cryptography" which refers to communication that exploits quantum mechanics for security. QC can't be done with the classical internet. Nor does QC include algorithms you can use offline (for tasks like encrypting a hard-dr...

Clash Royale CLAN TAG #URR8PPP up vote 6 down vote favorite 1 I had erroneously believed that piano pitch was directly related to string length. What string length is necessary to create the lowest pitch on an 88-key piano (the low A)? With string lengths varying from piano to piano, i.e., from baby grand all the way to concert grand, how is it that pitches stay the same? piano pitch share | improve this question asked Aug 31 at 13:58 liz Lupien 31 1 1 As a matter of comparison, if you look at a guitar the strings will cover 2 octaves (E2–E4) but all the strings are (usually) the same length. – Dietrich Epp Aug 31 at 19:48 add a comment  |  up vote 6 down vote favorite 1 I had erroneously believed that piano pitch was directly related to string length. What string length is necessary to create the lowest pitch on an 88-key piano...