Doubleplusgood - first impressions

Gee, I just checked my social calendar, and guess what?

So - I finish at 4 in Civic. Let's plot something for Wednesday!!!


betty

 

4:30 at corner of Eucumbene Dr and Cotter Rd?

 

I'll be there!!!!

betty

 

Watch out for lightning strike!

--
Cheers

Andrew

(Make a lightning rod by gluing a blunt ferrous rod to the top of the
motorcycle helmet, attaching a 4 metre length of copper strap to the rod
with copper wire, and attaching a suitable boat anchor to the free end
of the strap to make sure it stays earthed - any Windows 98 computer
would do.)

 

A _blunt_ rod? Have you been taking physics lessons from Hamish again?

big

 

" Calculations of the relative strengths of the electric fields
above similarly exposed sharp and blunt rods show that although the
fields, prior to any emissions, are much stronger at the tip of a sharp
rod, they decrease more rapidly with distance. As a result, at a few
centimeters above the tip of a 20-mm-diameter blunt rod, the strength of
the field is greater than that over an otherwise similar, sharper rod at
the same height. Since the field strength at the tip of a sharpened rod
tends to be limited by the easy formation of ions in the surrounding
air, the field strengths over blunt rods can be much stronger than those
at distances greater than 1 cm over sharper ones.
The results of this study suggest that moderately blunt metal rods
(with tip height–to–tip radius of curvature ratios of about 680:1) are
better lightning strike receptors than are sharper rods or very blunt
ones. "

C. B. Moore, William Rison, James Mathis, and Graydon Aulich, "Lightning
Rod Improvement Studies". Journal of Applied Meteorology: Vol. 39, No.
5, pp. 593–609. Langmuir Laboratory for Atmospheric Research, New Mexico
Institute of Mining and Technology, Socorro, New Mexico. April 10, 1999.

Extracted from that authoritative source Wikipedia:
http://en.wikipedia.org/wiki/Lightning_rod

 

OK, I'm wrong (again)...

(at least I'm not alone, it does say "It is commonly believed,
erroneously, that a rod ending in a sharp point at the peak is the
best"... )

big

 

Oh poop, there aren't going to be MORE bloody storms, are there? It's just
not right in Canberra! Steamy afternoons, celestial pyrotechnics, RAIN?!?!!
I've never seen anything like it!

Minx, let's confirm closer to the time, and hope the weather holds!!!

betty

 

I'm not so sure... If it's against the rules, nobody sent me _that_ memo
either...

big

 

Just refuse to admit that you did it (even when presented with irrefutable
proof).
That's the aus.moto way.

 

It would but you can pick up steel bar offcuts at any building site for
nix. Dunno where you'd find a copper rod for nix. Might be able to find
aluminium rod instead of steel, though. Don't ask me why I'm worrying
about the practicalities of this imaginary piece of kit, but for some
reason I am.

Southwark Premium, thanks.

 

I think it is the Windows 98 anchor that keeps you hoping...

 

Stuff your waki ...

Check
http://www.erico.com/products/s3000_1.asp
to see the 3000 series active lighting protection designed and
manufactured in Tassy. Note the shape, and read the comments! They
actually detect pre-strike and then generate ozone to attract the strike
and ground it safely.

Cheers
Goaty
--
_--_|\ John Lamp - in beautiful downtown Highton
/ \ IRC: DoD#:1906 Ulysses#:10185 Vulcan Nomad
\_.--._/ http://www.gorider.cjb.net/ Phone: 0409 512 254
v mailto: Fax: 03 5227 2151

Hear no Evo, See no Evo, Fear no Evo

 

Well..... bloody weather....

Minx and I forgot to pack our lightning rods, and had to abandon our
ride this arv. Bugger. This silly tropical weather has GOT to stop!!!
More of it expected this week, so we're rescheduling for next week and
hoping for some seasonally- and geographically-appropriate sunshine.

betty

 

If you wait for the weather, you'll no do much riding.
---
Cheers

PeterC [aka MildThing]


'01 Yamaha FJR1300

www.dmcsc.org.au
http://eladesom.com.au/ulysses/
# 37181

 

A bit of rain doesn't really bother me - got caught in a lovely storm on the
weekend - and besides, it's not usually an issue in Canberra (although I
have a few fair-weather rider friends who won't go anywhere if there's so
much as a puff of cloud on the horizon....) But this was serious storm
stuff. Dunno what's happened to the Canb weather of late - I've had to start
putting wet weather gear in the tank bag every day, just in case!!!

betty

 

God doesn't like it when you start fooling around with nature and pretending
you can alter time!