Tag Archives: Ringworld

Ring Around A Star

RingworldThe Earth orbits our star, Sol, at a distance of roughly 93 million miles (150 million kilometers) — a distance we call an Astronomical Unit (AU). Our little rock is just under 8,000 miles wide (a bit over 12,000 km) and has a surface area (including oceans) of just under 200 million sq miles (510 million sq km). Depending on how you look at it, the Earth seems very large or very small.

What if, instead of a rock spinning around its star, it was a ring encircling it? Suppose the ring spun fast enough (770 miles per second) to create “gravity” on its inner surface? And suppose the ring was one-million miles wide and had walls 1000 miles high long both rims to keep air inside? Such a ring would have a surface area equal to about three-million Earths.

And what you’d have is Larry Niven’s Ringworld!

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People, Things, Ideas

SMBC_2951I’ve gotten spoiled. Writing about the con carne topics is much harder than writing about the life stories and the off-the-cuff opinions. Meaty topics require research and fact-checking (and often I need to create the images). And I expect they’re also harder to read!

My intention here was always to write mostly about ideas with a fallback of writing about things and, to a lesser extent, writing about life (which is to say, about people).

Today’s post keys off a Saturday Morning Breakfast Cereal cartoon I saw a while back. At first the cartoon spoke to me, but the more I thought about it, the less I agreed with it.

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