Is it possible to count objects you can't see? If you've ever received a boxed gift, or a mysterious package from Amazon, you might have tried to lightly shake the box to try to guess its contents.

Counting objects is an ideal task for automation, and when focusing on a single type of object, there are many effective solutions. But what if you need to count hundreds of different objects? That’s ...

When faced with choosing the shortest queue at a supermarket, what do you do? Nobody starts counting – what our brain does is “number sensing”. The ability to gauge numbers occurs without knowing how ...