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Panoramas
from the Summit of Mauna Kea, Hawaii
Ji Hyun Chang
I am studying for a degree in
communication at the University of the Nations
in Kailua-Kona, Hawaii. On 20-21 May 2006, my
science class went on a field trip to the Mauna
Loa Observatory and to the summit of Mauna Kea.
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Common
Sources for Various Chemicals: Update
1
Aaron Muderick
The Citizen Scientist has
reported on the increasing difficulty
of finding and purchasing chemicals, many
of which were readily available only a
few years ago. Aaron Muderick has provided
a valuable service to amateur scientists
with his exhaustive list of common sources
for various chemicals.
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Build
a Feynman Reverse Sprinkler
Allan Rydberg, Research Engineer, Brown University
For those that haven't heard of Richard Feynman,
I suggest you check out the local library or the
web for some of his lectures and books. |
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