Desertsnow
πr²
- Joined
- Dec 13, 2004
- Messages
- 1,794
I racked my brain on this. The only thing I can think of so far is the wax cylinder phonograph, which I suppose would include the actual cylinders.
In one of my anthropology classes back in the '80s, the instructor showed us a video of an archaeologist making hand-axes. The knowledge of how to do it still exists. And if you ever get caught in a situation where you need a knife and don't have one, it would be a pretty handy thing to know how to make.Hand-axes?
Also, mammoth bone dwellings
Mankind would have to be in a sorry state indeed, if the knowledge of how to make a sharp rock were irretrievably lost.In one of my anthropology classes back in the '80s, the instructor showed us a video of an archaeologist making hand-axes. The knowledge of how to do it still exists. And if you ever get caught in a situation where you need a knife and don't have one, it would be a pretty handy thing to know how to make.
Sure, I believe it might take a fair amount of practice. Still, the idea of "losing" this knowledge made me smile a bit.It's not actually as easy as you might think. You need to find the right kind of rock, and know how to make the tools to make the tools. It's also dangerous to your hands, if you don't have good hand-eye coordination.
How about equipment for alchemy? We now regard it as a pseudo-technology, but that's not how it was regarded in its day. Does anyone still produce an athanor?
The Space Shuttle, yes. Space shuttles, no - there is actually one going through drop testing now for launch next year.Here are some manufacturers of CRT displays:
http://www.globalsources.com/manufacturers/CRT.html
New candidates:
* Mechanical display boards (used on many airports)
* Space shuttle
* Pater noster elevator
I have a nokia. No Obamaphone's here.