If I remember, most US paper (I don't know about any other production) is from farmed trees. Of course, single-species tree farms (it's not right to...
While not as dramatic a change as promised, I think in terms of American spaceflight the space shuttle really was quite a stark change, it made types...
You think every fall of a civilisation will be followed by rise of a new one? Maybe. But what I'm suggesting (as a hypothesis) is that every rise of...
Yes and it's understood that some SO2 in the atmosphere of Venus does get oxidised to SO3 and H2SO4. The limiting factor is low level of atmospheric...
I'm thinking more towards the limits of the known physical laws restricting technological advancement. So for example - warp drives, they may well be...
We've got a custom definition for strikethrough, though the current version of vBulletin seems to have it built-in. I looked to see if I could tweak...