Greaves & Thomas moon globe alongside the Greaves
& Thomas Antipodean Globe
Our moon globe uses NASA's data, dipicting the whole
surface of our moon, this globe is made in the traditional way of
12 hand papered gores applied to a plaster sphere. The example is
supplied on a small hand turned base made from reclaimed timber.
We believe this small
lunar globe will be most useful in
demonstrating eclipses, phases of the moon etc. It is interesting
to note that the proportional distance between a 12" diameter
Earth and this moon would be an impressive 30ft! An informative
leaflet will be supplied with every globe listing facts and experiments
that can be undertaken.
Greaves & Thomas Moon Globe on turned wooden stand. Ref
GT Mini Moon £50 + delivery.
Prices for packing and delivery vary depending where
are. If you are interested in any of our
globes on our web site, please email
us the reference number(s) and state which country you live in and
if you require a shipping quote.
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The moon is
384,400 km from Earth (about 30 Earth diameters) and is 3,476 km in
diameter is 3.67 times as big as the Moon's, and the Earth has 50
times the volume of the Moon. The volume of the Earth is 1.0832_1021
m_, The volume of the Moon is 0.02196_1021 m_ ( 1/50 0f Earth's volume).
In our solar
system, the Earth's orbital plane around the Sun is known as the ecliptic,
and the Earth's axial tilt is (officially) called the obliquity of
the ecliptic. (about 23.45 degrees in 2006) In formulas it is abbreviated
with the Greek letter _. The angle of the Moon's orbit to the plane
of the ecliptic is 5.145 degrees.
The Earth spins
on its own axis at a rate of 365.256 revs/orbit (365.256 days/year)
The Moon's Orbital period. The synodic rotation of the Moon (motion
relative to the Sun) is 29.53059 days. As it rotates the Earth we
see different amounts of the Moon lit by the Sun. These
are called the phases of the moon. New moon É waxing crescent É first
quarter (half moon) É waxing gibbous É full moon É waning gibbous
É third quarter (half moon) É waning crescent and then É New moon.
The Moon spins
on its own axis at a rate of exactly 1 revolution per orbit, so we
always see the same side of the Moon when we look up. The moon's orbit
is an ellipse, an ellipse has two foci and the earth is at one of
them. As the moon travels round its elliptical orbit it moves nearer
to and further away from the Earth. At perigee (the closest position
- 360,000 km away) the Moon has a visual width of 33 arc-minutes.
At apogee (the furthest position - 405,000 km away) it has a width
of 29 arc-minutes. Because of the axial tilt of the Earth and the
tilt of the Moon's orbit, the Moon is sometimes high in the sky, at
other times it is only just above the horizon. Highest and lowest
positions in the sky? Highest = (90-your latitude) +(23.45 + 5.15)
from the horizon Lowest = (90-your latitude) Ð (23.45 + 5.15) from
the horizon e.g. from
London, Highest is (90-51.50) +(23.45 + 5.15) from the horizon = 67.3
degrees Lowest = (90-51.50) Ð (23.45 + 5.15) from the horizon = 9.9
Compiled by Peter Grimwood www.orreries.co.uk
Greaves & Thomas, fine Globemakers,
a potted history.
Award winning Globemakers Greaves &
Thomas are a small company based in the United Kingdom, today they make
Historical Globes, Celestial Globes, Lunar Globes, Planetary Globes,
Facsimile Globes, Replica Globes, Themed Globes, Paper Folding Globes,
and Modern Day Globes. Arts Corespondent Jemmy Button looks into their
In 1991 James Bissell-Thomas after several
years of research, published his first globe (Merzbach
& Falk's 1881 globe). The globe was well received,
especially because of the ageing techniques developed to lend the globes
a patina producing a convincing replica. James Bissell-Thomas believes
that this was achieved because of his Art School background, his printing
knowledge gained running his own publishing house in the 1980's (Long
Tail Prints) combined with his knowledge as an antiques dealer. In 1991
the first globe joined an already existing eclectic range of furnishing
ideas which included Giant Tennis Rackets, Rivercraft furniture, Hat
Boxes etc. (most are still being made: www.gtstore.co.uk)
. It was because of James
Bissell-Thomas' interest in globes, that the decision was then made
to form a collection of globes, spanning cartographic history from 1492
to the present day.
At the time James' knowledge in globes was
poor, however a good friend at the Royal Geographical Society pointed
out that the following year (1992) would be not only be the 500 year
anniversary of the European discovery of the New World, but it would
also be the anniversary of the earliest surviving terrestrial globe
~ Martin Behaim's 'Erdapfel'. This globe today resides in the Germanishes
Museum in Germany, rightly described by Bissell-Thomas as the 'Holy
Grail' of all globes, not just because of its age, but also because
of the profusion of data inscribed on the globe, the globe is best described
as a medieval geographical census describing the world beyond Europe,
listing the origin of spices, metals, traditions, peoples, animals,
islands and religions etc. not only this but the globe covered in beautiful
illustrations by Glockendon.
Despite the globe being on an elaborate stand,
with extremely detailed artwork, Greaves & Thomas still decided
it would be wise to republish this fine relic. Appointments were then
made with the Germanisches Museum and flights were booked. On arrival
at the museum in September 1991, it transpired that the Germanisch Museum
had its own globe publishing interest and was not interested in helping
G&T achieve their goal. Consequently, they were given a very limited
time to study the original globe and reference images they also commissioned
from the Museum were later blocked and never arrived. While many would
have given up, Greaves & Thomas decided that it would persevere,
knowing that what ever they produced would ultimately be compared to
a rival globe that would have the Museum's seal of approval. All possible
data concerning the globe was sourced and the finished result once again
was well received, and is today is considered one of the most important
globes in their collection.
In August 1992 when the Martin
Behaim Globe was completed, Bissell-Thomas proudly informed
the Germanish Museum that despite their reluctance to help, he had succeeded
in making their facsimile. Soon after this 3 overseas business men arranged
to come and see their Behaim Globe, at the time Greaves & Thomas
was trading from 2 small garages in a small muddy yard, then even the
two garages were not room enough, and a small 12' white square marquee
had been hurriedly erected in the yard as a temporary measure. When
the visitors arrived, they spent considerable time inspecting the globe,
and then had an impromptu board meeting by themselves in the rain in
the muddy yard, they re-entered, and announced that 2 of them were presidents
of two globe companies, Rath Globes from Germany and Cram Globes from
the USA. They informed Greaves & Thomas that they had been working
with the Gemanishes Museum to produce their facsimile version, however
upon inspection of the globe, they stated that they were keen to cease
production of their own efforts and to market the G &T globe. This
they did, with considerable success including selling one example to
the Library of Congress in Washington D.C. Not only this, but the Gemanishes
Museum also ordered a globe for themselves.
Greaves & Thomas have, on more than one
occasion, offered to make the Germanische Museum's version, which would
be one step closer to the original, but to date they have declined.
The Greaves & Thomas version can now be found in numerous museums
around the world.
From this point onwards, Greaves and Thomas
would only concentrate on globes, initially historical globes but soon
branching into themed globes: Holbein's
Terrestrial Globe; Shakespeare's
Celestial Globe and lastly the ludicrous Elvis
Presley Mars Globe is another example of the diversity
that can be achieved in globemaking, if one cares to explore the possibility
of producing something other than the norm.
Today alongside their Themed Globes, Historical
Replica Globes and their Modern Day Globes, Greaves & Thomas have
also added the spectacular 'Hermetic
to their Collection and this will soon be followed by a production version
of their amazing Invisible
Greaves & Thomas now also have now formed
an interesting collection of globes made in the last 300 years by other
globemakers, this 500 strong collection will soon be prominently displayed
in the Museum that they are presently preparing on the Isle of Wight.
This should be a Mecca for designers as it will show numerous different
versions of the same object. Not only this, but they will be using the
Sistine Chapel's ceiling as inspiration to make a stunning celestial
ceiling, and at the same time show one of the finest optical illusions
in the world.
A surprising aspect of Greaves & Thomas
is that they produce all their Globes in the UK. While numerous companies
in the UK now relocate their production to the far east, in order to
survive in today's cut throat market, G&T continue to produce a
quality product which is well received. Their workforce never more than
5 craftpersons, and the globes they offer are limited by craft instead
of number, this is verified in the small numbers of certain globes produced
each year ( for example 2-6 Coronelli Globes per year and 5-12 Behaim
Iron Stand Versions per year) , consequently there is always a waiting
list for the larger more intricate globes that Greaves & Thomas
produce. The globes are made using recycled papers and the wooden components
for the elaborate stands are also made using reclaimed / recycled timber.
Consequently Greaves & Thomas globes will never cost the Earth.
Jemmy Button, Arts Corespondent
VIEW THE G&T GLOBE COLLECTION CLICK HERE!