Time travel is deterministic and locally free, a paper says —resolving an age-old paradox. This follows research observing ...
Discover some of the most innovative flying machines redefining the future of aviation technology. From the GEN H-4 Personal Helicopter, the Guinness World Record holder for the smallest helicopter, ...
The frigid temperatures from a massive polar vortex are now expected to stay over the US until the end of the year.
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