Mad_Dizzle t1_jee667q wrote

I guess if you covered the coast in tons of wind turbines, you could capture the energy just fine. The issue with energy sources like wind and solar is storage. These sources are not consistent, so storage devices are needed to contain energy so we can use electricity when the wind isn't blowing. We do not have good enough battery technology to compensate for this, and it would be prohibitively expensive.


Mad_Dizzle t1_jce3bfi wrote

As with a lot of things in evolutionary biology, the answer is probably both. Most life, from my understanding, responds to light. Whether that be to photosynthesize or to see, because the sun is the primary source of energy in our ecosystem. Eyes likely all come from a similar source that responded to light in an advantageous way. However, many eyes may have evolved separately, which could be why different animals can see different wavelengths of light.


Mad_Dizzle t1_j64n8sp wrote

The point is that a lot of learning is done in hindsight. NASA leadership wouldn't make the same mistake today, and neither would I now, but what's done is done. We honor the fallen and hope to improve from their sacrifice.


Mad_Dizzle t1_j646opz wrote

It's easy to say that now. When you start at NASA, there's loads of employee training to do for a large number of reasons. One of these exercises that I distinctly remember was a sort of training scenario. They gave every one of us all this information, and we had to decide whether or not to greenlight the launch. Every single person in the group I was with chose to greenlight it. After that, they told us that was the exact scenario NASA leadership was in for Challenger. And we were all horrified.


Mad_Dizzle t1_iv1deno wrote

There's been a lot of research done with regolith applications because there's a big focus on "in-situ resource utilization" basically using what you can find in extraterrestrial habitats. The main applications from what I remember is regioith composites being used for construction, as well as processing the stuff to produce oxygen for habitats as well.