Originally posted by: Stiganator
NASA has contributed immensely, but on the verge of recession I don't know that it is necessary to fund it like crazy. The only probable thing the moon will net us is resources. Beyond that, I don't think it is going to net too many advances. Same to be said about pretty much every other planet in the solar system. I think we'll need to go to a different star system to find another planet that will net any 'useful' things i.e. Earth 2. Computers were the last huge advance in technology. I don't foresee anything that big anytime soon, but maybe I'll be surprised.
Oh, there'll be advances. Room temperature quantum or optical computers would potentially be as revolutionary as the computer itself. Same story for room temperature superconductors. Imagine if you could do
this at room temperature. Yeah that looks silly, but that right there could put ball bearing manufacturers out of business. It could allow new styles of electric generators to be built. Power transmission lines could be made smaller, and losses due to resistance heating would be gone - which amounts to more than 10% of the total electric production in the country, just turned into heat in the lines before it ever gets used. Total efficiency right now is somewhere around 25-35% going from fuel to power in your house. Huge losses.
Traces on circuit boards could be made smaller, heat production would be reduced. And I don't know what else. That's just stuff I could think of off the top of my head.
Maybe the LHC will find something we can use or manipulate, something revolutionary like the discovery of the electron.
Originally posted by: Hajpoj
I was a Physics major until I discovered how our mathematics are fundamentally flawed. Sure it can be used from a practical standpoint, but no intrinsic truth can dicovered with it.
Our math is based on our logic, which is determined by our senses. Since our senses determine our logic, everything based on our logic is temporal and eternally flawed since nothing can be done to change how interpret data in the first place.
Our mathematical language seems to have done a damn fine job thus far.
Our senses determine our reality; if our math can describe that reality, then it's done its job. I don't know what you want to obtain by "intrinsic truth," or what that's really supposed to mean. Are we going to go ask spacetime itself, "Hey, is this accurate?"
I don't think it's going to answer.
On topic: Manned space exploration is dandy and all, but we're kind of expensive things to send into space, especially on long trips like to the Moon, or worse, to Mars. Robots don't care if they're folded up and stashed in a small titanium or aluminum can for a few months. They don't eat, they don't excrete, they don't need coffee breaks, they don't care if they're worked to death, and they don't have any desire to return home. Sure it's an amazing experience to walk on a world other than Earth - for a few people. Everyone else on Earth gets exactly what they'd get from a robot: Pictures. (And scientists get lots of data from various other instruments, it's not all just pretty pictures.)
An awful lot of what we do is just going to Low Earth Orbit anyway, and the shuttle was an interesting concept, but perhaps was not ideal. It needed a lot of rework after each launch; it wasn't so much "reusable" as it was "refurbishable." Plus, given the extra mass of the entire orbiter itself, that's a lot of mass to be hoisted into orbit, not even counting any possible cargo.
One of the other design goals of the shuttle was to be able to retrieve satellites from orbit and bring them back down. I don't know if they ever even did that. Once or twice maybe?
There are alternative ways of getting people and cargo to LEO; the Russians do it just fine with their Soyuz spacecraft.
Something else to consider though: NASA's
entire yearly budget is well below $20 billion a year. That's a fly spitting into the wind compared to the national budget. And NASA's total spending since its inception more than 50 years ago is around what has been spent on the wars in Iraq and Afghanistan.