Search results
Results from the WOW.Com Content Network
Beattie, Donald A. (1997). History and overview of solar heat technologies.Cambridge, Massachusetts: MIT Press. ISBN 978-0-585-37263-1.; Butti, Ken & Perlin, John (1980). A Golden Thread: 2500 years of solar architecture and technology.
Other names for this tree have included Oregon pine, [7] British Columbian pine, [8] Puget Sound pine, [8] Douglas spruce, [8] false hemlock, [7] red fir, [7] or red pine [7] (although again red pine may refer to a different tree species, Pinus resinosa, and red fir may refer to Abies magnifica).
Oak Industries, Inc. was an American electronics company that manufactured a variety of products throughout seven decades in the 20th century. In existence from 1932 to 2000, the company's business lines primarily centered around electronic components and materials, though the company made a high-profile and ultimately failed extension into communications media in the late 1970s and early 1980s.
A colour wheel in the tree stand that is used to light the tree can overheat and catch fire. In 2007 the CPSC [11] ordered a recall of Pre-lit Palm Trees imported by iObjectSolutions Inc. for hazards of overheating and electrical shocks. If the electrical connectors were not fully inserted, they could overheat and pose electrical shocks and ...
Pinus lambertiana (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree and has the longest cones of any conifer. It is native to coastal and inland mountain areas along the Pacific coast of North America , as far north as Oregon and as far south as Baja California in Mexico.
Jeffrey pine wood and ponderosa pine wood are sold together as yellow pine. [6] Both kinds of wood are hard (with a Janka hardness of 550 lbf (2,400 N)), but the western yellow pine wood is less dense than southern yellow pine wood (28 lb/cu ft (0.45 g/cm 3 ) versus 35 lb/cu ft (0.56 g/cm 3 ) for shortleaf pine).
Its leaves are needle-shaped, evergreen, in fascicles of two, needle-like, straight or slightly twisted, stiff, sharp-pointed, light yellowish-green, spread apart; edges toothed and 2–4 cm (3 ⁄ 4 – 1 + 1 ⁄ 2 in) long. The bundle-sheath is persistent. The buds are blunt pointed, up to 15 mm long, reddish-brown, and resinous.
The green pine needles give the twisted branches a bottle-brush appearance. The needles of the tree surround the branch to an extent of about one foot near the tip of the limb. [13] The name bristlecone pine refers to the dark purple female cones that bear incurved prickles on their surface. [5] [12] The dark color of these cones helps to ...