- The Archimedes'
****, also
known as the
Archimedean ****,
hydrodynamic ****,
water **** or
Egyptian ****, is one of the
earliest hydraulic machines...
- A rotary-
**** compressor is a type of gas compressor, such as an air compressor, that uses a rotary-type positive-displacement mechanism.
These compressors...
- A
****-pile
lighthouse is a
lighthouse which stands on
piles that are
****ed into
sandy or
muddy sea or
river bottoms. The
first ****-pile lighthouse...
- A
**** thread is a
helical structure used to
convert between rotational and
linear movement or force. A
**** thread is a
ridge wrapped around a cylinder...
-
Sand is a
granular material composed of
finely divided mineral particles.
Sand has
various compositions but is
defined by its
grain size.
Sand grains are...
- A
****-propelled
vehicle is a land or
amphibious vehicle designed to cope with
difficult terrain, such as snow, ice, mud, and swamp. Such
vehicles are...
- the Old
World tropics and subtropics.
Common names include pandan,
**** palm and
**** pine. They are
classified in the
order Pandanales,
family Pandanaceae...
- principle. He is also
credited with
designing innovative machines, such as his
**** pump,
compound pulleys, and
defensive war
machines to
protect his native...
- slow to
appropriate funds for the new lighthouses. A
****-pile
foundation for a new
light on
Sand Key was
begun in 1852.
Funds ran out
before the foundation...
-
propeller (
****), and
upgrades to hull coatings. She
underwent sea
trials in 1990 and
returned to
active service out of Charleston, SC. In 1991,
Sand Lance...