Welcome back! For Day 4 of the challenge, let’s do a short and fun activity based around a concept called cognitive reserve.

NVIDIA came to CES swinging with i ts new “Alpamayo” platform, essentially positioning itself as the go-to supplier for the “brains” of future autonomous robots and vehicles. It’s a direct shot at the ...

Test your hawk-eye vision by spotting the hidden raccoon among cats in 13 seconds with this visual illusion challenge.