You might want to compare the NMRA's track standards against the European
standards. I think that you will find that the RP-25 wheels will work just
fine on the European track. The big problem will be gaps at the frog and so
forth where the wide flangeway will allow the wheel to drop down a bit but
then the turnouts made by all the manufacturers are using a very wide gauge
on the track through the frog and thus the flangeways are abysmally wide
even on the American track.
Why isn't there an Ozone Hole at the NORTH Pole?
For an interesting romp through some environmental topics, read Michael
Crichton's "State of Fear." It is a well researched thriller with a strong
point of view about eco-terrorism and the "science" behind environmental
I'm not advocating its point of view, since it is a novel designed to sell
books, and Mr. Crichton has as much an ax to grind as anyone, but it is an
interesting look at that political world.
in article JGKAd.26123$ firstname.lastname@example.org, Wolf Kirchmeir at
email@example.com wrote on 12/29/04 7:35 PM:
Actually, there isn't. There is a thinning of the Ozone but not a full hole
like the South Pole has each year. Now go figure out why! It will suprise
Why isn't there an Ozone Hole at the NORTH Pole?
There is no "hole" at the south pole either - just a thinning. The
"hole" is a media invention - you know, real scientific talk is "too
difficult" for the Ordinary Person, so we'll talk down to him (or her.)
The thinning is greater at the south pole, AFAIK (that's why it was
discovered there first), but I don't know why.
The Flintstones might be knocking on your front door right now!
The change in the amount of ozone is the worrying point. As I live in one
of the few reasonably densely populated* countries in the lower part of the
southern hemisphere, I can assure you that the incidence of skin cancer and
eye problems related to reduced atmosphere is increasing rapidly.
*densely populated to a level where each such individual event has a
minimal effect on the average.
Ah, but is the incidence of skin cancer and eye problems really related
to reduced atmosphere or is it related to 1. people living longer than
they did in the past or 2. people having more leisure time and spending
more hours at the beach (particularly when they were younger 1950s) or
3. Better medical detection ?
When I was a kid, we didn't hear much about skin cancer, cataracts, or
such, but people living into their 80s and 90s were also rare. Many of
the older folks never had time to spend on the beach when they were
young, and if they did, the customs of the times called for them to be
much, much more covered up. Many were shielded from the sun by a
constant cloud of coal smoke :).
Not to say that the global climatic condition is not suspect; it is.
Proving cause and effect is another thing altogether.
Our sheep now get skin cancers and eye problems, and their life span is greatly
reduced because everyone wants lamb rather than mutton.
Many more people worked outside in the past - a bulldozer replaces about 100
labourers - a farmer on a bike replaces about 6 men on horses - a farmer in a
helicopter replaces a hundred men on horses - a fork-lift replaces a dozen men
loading railway wagons etc etc.
The global warming condition is suspect??? It's here now and it's going to worsen
year by year for the next century even if we cut carbon dioxide emissions by 50%
right now and hold that level.
It's not so difficult in NZ because we don't dry-clean our sheep!
We can measure the warming effect just by sticking a thermometer in the sea.
On Mon, 03 Jan 2005 20:13:38 +1300, Gregory Procter
Take a look at the way they dressed, though. We have a series of
photographs taken over an 80 year period on farms in the southeastern
United States. Back in the Thirties, men wore hats with brims and
long-sleeved shirts when they worked outdoors, just as doctors
recommend today for protection from the effects of solar radiation.
I'm sure you think we're peasants with no ability to measure solar radiation here
in NZ, but you would be wrong. The solar radiation level has increased markedly
the last 25 years. We are quite a long way from the "hole", but the edges of that
hole taper and we're suffering from the effects of that ozone taper.
Every five years we borrow NASA's U2 (I was involved ten odd years back) and in
between times we use ordinary weather ballons with locally developed measuring
worsen year by year for the next century even if we cut carbon dioxide
emissions by 50% right now and hold that level.,
I really don't worry much about any of this environmental stuff. I
subscribe to the Buckminster Fuller thoughts on mother earth. When it gets
enough of the problems it will eliminate the cause of the problems, i.e.
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.