17 December
2004
WANDERINGS
No. 86
Ralph J. Coppola --- r_j_coppola<at>hotmail.com
SAS Disclaimer
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On 09 November
2004, I caught part of America’s Stone Age Explores,
a very interesting PBS feature. The program looked at
the common theory that the first North American peoples,
called the Clovis People, crossed the Bering Land Bridge
from Asia about 13,500 years ago.
Mitochondrial DNA
analysis of North American First Nations
Peoples showed the expected Asian markers. But
then the investigators were thrown a curve ball when
they found evidence of pre-Columbian European influences,
along with the Asian markers, in the DNA of the Ojibwa People. This new DNA
turned out to be similar to that of the Clovis-like
Solutrean People of ancient
France and Spain.
"Could
it have been possible for some early European peoples
to have reached North America during a past ice age?”
I asked myself this question, years ago, while sailing
into the Arctic through Davis Strait. I remember that
for as far as the eye could see, the sea ice was black
with seals, and there was almost a daily sighting of
whales. Their presence represented a huge food supply,
and, if the modern Inuit
can live, for extended periods, on sea ice eating seals,
other marine animals and fish, why couldn’t the Solutreans?
Perhaps a band(s) of Solutrean Peoples could have followed
the ice edge, west to North America, either by foot,
dog team or boat (similar to Inuit umiak).The Stone Age
Columbus?The Clovis Spear
Point
For further reading, please see:
The
San Francisco Sidewalk Astronomers
brings us the DIY plans for building a Dobsonian Telescope.
Note: You may be able to use these plans as a guide
to modify and improve your commercial 'scope.
The drastic
drop in price of digital cameras allows the amateur
to install a camera module in their rocket, balloon
or what ever.
Is it a bird?
Is it a plane? No! It’s
an ornithopter!, a machine that, like a bird,
flies by flapping its wings. Buy an inexpensive kit
or try your hand at a DIY construction.
Ice Flash! --- Triboluminescence
--- or --- piezoluminescence?
NASA’s World Wind allows
any user to zoom from satellite altitude into any place
on Earth, leveraging high resolution LandSat imagery
and SRTM elevation data to experience Earth in visually
rich 3D.
The working
group on VLF/ELF
Remote Sensing of the Ionosphere and Magnetosphere (VERSIM)
is an international group of scientists interested in
studying the behaviour of the magnetosphere and ionosphere
by means of both naturally and artificially generated
ELF and VLF (300 Hz - 30 kHz) radio waves.
Red Sprites and Blue Jets is the description
of the University of Alaska’s research into middle and
upper atmospheric optical and electrical phenomena.
Mike Boschat's Astronomy Page
contains a huge number of astronomy related links.
India’s
new Hanle telescope, perched on a Himalayan
mountaintop, holds the title of being the World's highest
telescope, 4,500 meters (14,760 feet) above sea level).
Bob Fritzius’
Shade Tree Physics web pages
provide us with a host of links to keep us busy reading
during these long winter nights.
On 16
November 2004, ElectronicsWeekly.com reported
that an
unmanned sub crossed
hundreds of kilometres of open ocean without using an
engine of any kind. The “Spray”, a type of Slocum Glider, was developed
by Scripps
and Woods Hole
scientists to provide a small autonomous platform for
long-term hydrographic measurements. Also see --- “Using
a Fleet of Slocum Battery Gliders in a Regional Scale
Coastal Ocean Observatory.”
The Slocum
Glider is named after Nova Scotia born Captain Joshua Slocum.
He set sail on 24 April 1895 in his sloop, Spray, and
become the first person to sail single-handedly around
the world. His trip totalled more than 74,000 km (46,000
miles).
Cultures On The Edge is an online
magazine that looks at cultural diversity around the
world.
The Page Museum is located at LA’s Rancho
La Brea Tar Pits and is recognized for having the largest
and most diverse collection of extinct Ice Age plants
and animals in the world.
The topic of
Forrest Mims’ World of Science for 29 October 2004 was
Science
and Cotton. In his article, Forrest comments
on the comfort of cotton clothing on a hot (dry)
summer day. Yes, cotton clothing can feel good under
the right conditions, but being an occasional backpacker
and/or canoeist, I am aware of the saying “Cotton Kills!”
Cotton fibers will quickly become saturated with water
and/or perspiration. This added to cotton’s slow drying
characteristic tends to render the clothing very uncomfortable.
Quite a few people have succumbed to hypothermia
while wearing wet blue jeans and a cotton
T-shirt. For outside adventures my choice is layered
synthetics. Also, please see --- Staying
Warm in the Outdoors. [Interesting contrast
on the suitability of cotton clothing on hot summer
days in the South versus cold, damp days up North. Having
just returned from rather frigid Fairbanks, Alaska,
I totally agree. Editor.]
The
results of the 2004 European
Union Contest for Young Scientists have been
posted.
YES
I Can! Science believes that anyone
with the desire, interest, or just simple curiosity
can learn about, and understand, science.
The Exploratorium’s Science
Information Infrastructure (SII) is a collaboration
among teachers and scientists that introduces the student
to NASA’s collection of images and data sets. For example,
one lesson, Graphing
Stratospheric Ozone, introduces the student
to a "how-to" graphing example followed by
other, more sophisticated examples of graphing using
NASA data.
The Science Toy Maker’s page
is a site for people, of all ages, who like to roll
up their sleeves and make fun and educational toys that
entice scientific investigation.
Along with
their science pages,
the Enchanted Learning site
contains a wealth of resources for parents and teachers.
Of special note is the Crafts section, which
contains enough projects to keep even the busiest little
tyke occupied.
Use your knowledge
of physics to design an on-line roller coaster on the
Amusement Park
Physics site.
The Science.ca website combines rich narrative
biography with clear graphic explanation to describe
Canada's greatest scientists and their achievements.
Also see The Science
and Technology for Canadians web site.
The
Science, Engineering, Technology and Mathematics Network
(SETNET) is a UK charity that promotes Science,
Technology, Engineering and Mathematics awareness, especially
among young people.
The
Institute of Physics’ Physics.org web site has been described as "a cybercopia of knowledge".
The Cyprus Atlantis Expedition
reports they have discovered man-made structures located
1.6 km (1 mile) below sea level. Has Atlantis been discovered?
For further information, please see the Discovery of Atlantis web
site.
Are The Ica Stones proof
positive that man and dinosaurs
roamed the Earth at the same time or were the stones
carved by local farmers trying to make a bit of extra
cash? Also, see:
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