Science in telegram

Giraffes are just as astonishing on the inside as they are to look at. Standing up to 19 feet tall, they require enormously high blood pressure to pump blood up to the head, yet they suffer few, if any, of the consequenc…

That’s how an ancient Egyptian door lock works. Not so different from a modern one, right? Pretty simple, but at the same time very thoughtful. The general principle has not changed since that time. And I wonder if there…

This is what the ancient Greek stadium looks like before and after the excavations. Thousands of people filled this stadium thousands of times over the centuries, and then it all just stopped and overgrown. You won’t eve…