The most famous tunnel is the thirty mile "Chunnel" between England and France. The Chunnel is actually two separate tunnels, connected by cross passages.
The topic of Today's Moment of Science is fossilized fecal matter. You heard me. Fecal matter, feces, poop, whichever you prefer.
The most famous tunnel is the thirty mile “Chunnel” between England and France. Thirty miles of air is a lot to push around, so engineers have come up with a clever solution. The Chunnel is actually two separate tunnels, connected by cross passages.
Over 4,000 years ago, the Babylonians were the first to approximate pi, and ever since, mathematicians have come up with ways of figuring it more accurately.