It seems that babies stroked at a speed of 2.5cm per second, stop crying and calm down.
What’s so special about 2.5 centimeters a second? That’s the speed at which our primate cousins groom one another. These neurons have been around far far longer than we have. They’re waiting for that signal that says somebody else is looking out for you, that they care.
So today’s invention is a robotic cot base, suitably upholstered, but along which small vibratory ripples would be made to pass at 2.5cm per second.
This would be felt by a baby lying in any orientation and help it to sleep.