Answer: nothing. Just take the kids to the toy store and everything will be fine.
HULC want longer-lasting batteries!
An unusual combat robot controlled by neural signals made its debut at Japan's Robo-One competition
Japan takes a technological stride forward
Giant robot vehicles have long been a staple of science fiction. When do we reality-dwellers get ours?
Like science, tech, and DIY projects?
Sign up to receive Popular Science's emails and get the highlights.