- A
heliograph (from
Ancient Gr**** ἥλιος (hḗlios) 'sun' and γράφειν (gráphein) 'to write') is a
solar telegraph system that
signals by
flashes of sunlight...
- Look up
heliograph in Wiktionary, the free dictionary.
Heliograph may
refer to:
Heliograph, a
device used for
optical signalling Sunshine recorder, also...
- code. The most
extensive heliograph network established was in
Arizona and New
Mexico during the
Apache Wars. The
heliograph was
standard military equipment...
-
largest radio telescopes in the world. Long
established are also the
radio heliograph, a T-shaped array, and the
decametric array operating at
wavelengths between...
- and east, and the
direction of
solar rotation is from east to west.
Heliographic coordinate systems are used to
identify locations on the Sun's surface...
- A
heliographic copier or
heliographic duplicator is an
apparatus used in the
world of
reprography for
making contact prints on
paper from
original drawings...
-
aquatint to
print black ink. By 1822 had made the
first light-resistant
heliographic copy of an engraving, made
without a lens by
placing the
print in contact...
-
motorizing his machine. The
lunar crater Niépce is
named after him. The Niépce
Heliograph is on
permanent display at the
Harry Ransom Center at the
University of...
- and
navigation lights are used to
communicate navigation hazards. The
heliograph uses a
mirror to
reflect sunlight to a
distant observer. When a signaler...
- On the
closures of GDW in 1995, the
rights returned to Chadwick, with
Heliograph, Inc.
acquiring a
reprint licence: 182 in 2000 and 2001. In 2010, the...
