You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Jessie Diggins has become the best-ever American cross-country skier because of what she pushes her body through. By Reid Forgrave To many Israelis, he’s a war hero. To others, he’s a traitor guilty ...