This site has information on seismometers, seismographs, and seismoscopes (the first of which, it says, "was invented by the Chinese philosopher Chang Heng in A.D. 132").
It claims that "It is relatively easy to acquire the necessary materials and build your own seismometer," and provides relevant links.
Since I know people who like to build their own scientific equipment, such as telescopes (including trying to grind their own lenses), I thought I'd throw this out there.
Have fun, guys. And let me know how it works out.
The Easter Cat by Meindert DeJong
-
Mr. DeJong is fast becoming one of my favorite children’s authors of all
time. His books are usually animal stories, often child-centered, with
quite a lot...
1 day ago
No comments:
Post a Comment