Find groups of four items that share something in common. Select four items and tap 'Submit' to check if your guess is correct. Find the groups without making 4 mistakes! Each puzzle has exactly one ...

Explore the idea of a single, secure digital identity for accessing all government services. Learn about the technical challenges, security, and user experience considerations.

The human visual system provides us with a rich and meaningful percept of the world, transforming retinal signals into visuo-semantic representations. For a model of these representations, here we ...

When your business gets big enough, you need an IT department to handle security. How big can you get before that’s needed? There’s no set size, but one possible measure is whether you still know the ...