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A sarcophagus discovered in 2009 in the burial chamber of an Egyptian high priest was originally from the tomb of pharaoh Ramesses II, according to a new study.
It was proven that for the "offline" version of Tetris (the player knows the complete sequence of pieces that will be dropped, i.e. there is no hidden information) the following objectives are NP-complete: Maximizing the number of rows cleared while playing the given piece sequence. Maximizing the number of pieces placed before a loss occurs.
However, generally they are considerably slower (typically by a factor 2–10) than fast, non-cryptographic random number generators. These include: Stream ciphers. Popular choices are Salsa20 or ChaCha (often with the number of rounds reduced to 8 for speed), ISAAC, HC-128 and RC4. Block ciphers in counter mode.
Patents #1–#50. U.S. patent 334,823 - Commutator for Dynamo Electric Machines - 1886 January 26 - Elements to prevent sparking on dynamo-electric machines; Drum-style with brushes. U.S. patent 335,786 - Electric Arc lamp - 1886 February 9 - Arc lamp with carbon electrodes controlled by electromagnets or solenoids and a clutch mechanism ...
A refurbished version of the incredibly popular Fire HD 10 Tablet is an impressive 50% off for Prime members! Enjoy 32 GB of memory, along with speeds up to 30% faster thanks to a new 2.0 GHz octa ...
A magnetohydrodynamic generator ( MHD generator) is a magnetohydrodynamic converter that transforms thermal energy and kinetic energy directly into electricity. An MHD generator, like a conventional generator, relies on moving a conductor through a magnetic field to generate electric current. The MHD generator uses hot conductive ionized gas (a ...