Abstract: By integrating a nearly infinite number of reconfigurable elements into a finite space, a spatially continuous array aperture is formed for holographic multiple-input multiple-output (HMIMO) ...

In this challenge, Britt Hertz picks a letter and attempts to master an incredibly difficult contortion trick. The video highlights the limits of flexibility and determination, showing how small steps ...

In this challenge, 100 years of contortion techniques are explored. US military carries out strikes in Venezuela College football fans loved Laura Rutledge’s viral sprint to ESPN desk for halftime ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...