At TFL, we're making journeys safer for everyone, and that includes improving safety on London's roads.

That's why we and London boroughs are lowering more speed limits to 20 miles per hour,

because 20 miles per hour roads have already reduced collisions resulting in deaths

or serious injuries by 24 percent. That is how we're making journeys in London safer and brighter

for everyone. Search TFL Improvement Plan to the Mayor of London and TFL every journey matters.

This is Hotel Mars episode N, CBSI in the world. I'm John Batsch with my colleague and co-host

and friend David Livingston, Dr. Space of the Space Show, and we're having a wonderful

memorized lame straw with Rob Godwin, the publisher of RCG Publishing, which has a number of

wonderful stories about Apollo and early days of dreaming of landing on the moon and what

comes next. Well, we're on the moon right now with Apollo 16. The landing site was chosen

in what is called the Descartes site. Most significant to me in my memory of the lunar

roving vehicle, the LRV, or the Dune Buggy. What was it, Rob? How was it put together? What was

ambition of running around in the moon in that strange landscape? It was built by Boeing, John,

and it was designed to get them further afield than they would be able to go on foot.

I think it had like a top speed on the moon of perhaps as much as 16 or 17 kilometers an hour.

It was designed to go faster than that, but it was extremely light. They couldn't use

pneumatic tires on the moon, so it had these piano wire wheels, which allowed it to have some suspension

as they were going around. It was electrically powered, electric motors on two separate systems.

It also had steering at the front and the back, but it was light enough that the two astronauts

on the moon could actually pick it up bodily and move it around, which turned out to be a useful

thing on Apollo 16, because when they first offloaded it from the lander, it turned out the

rear steering wasn't working, and they didn't know why, and they were quite concerned about that.

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