Alan J Fletcher a...@well.com wrote:
I recently collected some obsidian .. and cut my hand while doing so. It's
reportedly still used for ultra-sharp scalpels.
http://en.wikipedia.org/wiki/Obsidian
As much as I hate to admit there is something of value on Wikipedia, that
article has a
At 03:45 PM 6/16/2011, Jed Rothwell wrote:
Alan J Fletcher mailto:a...@well.coma...@well.com wrote:
I recently collected some obsidian .. and cut my hand while doing
so. It's reportedly still used for ultra-sharp scalpels.
Hi,
On 16-6-2011 22:50, Abd ul-Rahman Lomax wrote:
Wikipedia is great for certain kinds of things. If there is no serious
controversy, articles tend to improve over time. When there is
controversy, though, Wikipedia supposedly has a neutrality policy, but
they never figured out how to find
At 06:24 PM 6/16/2011, Man on Bridges wrote:
Just a thought, as Wikipedia seems not to be able (or isn't willing)
to solve this problem, what about setting up a website with
so-called green- and red-lists for wikipedia subjects that are
respectively not and are biased by administrators just as
Peter Gluck peter.gl...@gmail.com wrote:
It seems the fact that cold fusion (largo sensu) was discovered in
palladium was historical bad luck to the field.
It will be hugely ironic if that turns out to be case.
I am trying to think of some similar event in this history of technology, in
Germanium has advantages over silicon. The forward voltage drop for
the p/n junction is 0.2 V vs. 0.7 V. Also, switching speeds are
higher for germanium.
T
On Wed, Jun 15, 2011 at 5:38 PM, Terry Blanton hohlr...@gmail.com wrote:
Germanium has advantages over silicon. The forward voltage drop for
the p/n junction is 0.2 V vs. 0.7 V. Also, switching speeds are
higher for germanium.
That should read faster instead of higher.
Terry Blanton wrote:
Germanium has advantages over silicon.
Obsolete technology usually does have some advantages. It is rare that
the new version is optimum in every way. That is why old and even
ancient technology is almost immortal. A carpenter uses hand tools such
as knives from time
I wrote:
I'll bet there are people who find it handy to use stone cutting tools.
Come to think of it, I do! My daughter got me a Kyocera ceramic knife. Very
handy. It is an updated stone-age tool.
As Jarad Diamond pointed out in the book Collapse, the stone age was not
one continuous,
At 05:35 PM 6/15/2011, Jed Rothwell wrote:
I wrote:
I'll bet there are people who find it handy to use stone cutting
tools.
Come to think of it, I do! My daughter got me a Kyocera ceramic
knife. Very handy. It is an updated stone-age tool.
I recently collected some obsidian .. and cut my hand
Alan J Fletcher a...@well.com wrote:
I recently collected some obsidian .. and cut my hand while doing so. It's
reportedly still used for ultra-sharp scalpels.
http://en.wikipedia.org/wiki/Obsidian
Wow. That's neat! So the stone age is literally continuing to up the present
moment.
- Jed
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