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Can Rotation Really Replace Gravity Beyond Earth

In orbit, astronauts float weightless because they’re in continuous free-fall around Earth. To recreate gravity, engineers ...
New Scientist

Mathematicians have found a hidden 'reset button' for undoing rotation

Mathematicians thought that they understood how rotation works, but now a new proof has revealed a surprising twist that makes it possible to reset even a complex sequence of motion ...

Walking is good for you. Walking backward can add to the benefits

Backward walking, also known as retro walking or reverse walking, may add variety and value to an exercise routine when done ...

The Phillies’ roster needs a makeover. Here are the moves they should pursue

The Phillies have a lot of work to do this offseason, specifically in the outfield, at third base and in the bullpen.
IEEE

Linear Array Motion-Based Time-Varying Channel Estimation for Three-Dimensional Millimeter-Wave Systems

Abstract: Using linear arrays for compressive sensing-based (CS) three-dimensional (3D) millimeter-wave (mmWave) channel estimation presents significant challenges due to the dimensional limitations ...