Giant Saguaro cactus – Symbol of American deserts

Giant Saguaro cactus - Saguaro National Park, Rincon ValleyGiant Saguaro cactus - Sentinel Peak, Tucson, ArizonaGiant Saguaro cactus - Arizona - Saguaro Cactus
 
 
 
 
 
Giant Saguaro cactus - Pachycereus pringlei, Sonora, MexicoGiant Saguaro cactus - Pachycereus pringlei with osprey nestGiant Saguaro cactus - Pachycereus pringlei, Rancho Punta Estrella, San Felipe, California, Mexico

Giant Saguaro cactus – Symbol of American deserts

Giant Saguaro cactus – It’s a symbol of American desert landscapes. Fascinates with its uniqueness both locals and tourists. Saguaro (Carnegiea gigantea), is the only representative of the genus Carnegiea, the highest cactus in the world. It reaches a height of 20 meters and is a decoration of desert scenery, especially Sonora and other parts of Arizona and California. Although it is not an endangered species, America is particularly concerned about its protection.
In the first place classification of the highest cactus in the world is a 150-year-old giant carnival, which grew in Arizona and reached the height of 23.8 meters. This admirable cactus fell victim to unfavorable weather conditions in 1986. Although it is still an invincible record holder, some species are trying to catch up with him. For example, the leader of the genus Pachycereus pringlei, reached 19.2 meters.

Moonless development – Earth without Moon

Moonless development - Earth without Moon - Research Center of NASA in Moffett Field

Moonless development – Earth without Moon

Moonless development – Earth without Moon – Simulations 4 billion years of
development of the Earth without the presence of the Moon. Were performed in the
Research Center of NASA in Moffett Field, California by Jack Lisauer.
In the developed model,
the maximum angle at which leaned to the axis of the Earth, turned out to be much smaller
than
assumed earlier studies. The conclusions of the study were: Earth would be the Earth,
even without
his extremely large satellite.

Hundred meter pump

Hundred meter pump - Redwoodfallentree

Hundred meter pump

Hundred meter pump – Trees procure water by downloading it through the roots and transporting up through the vascular tissue (xylem). The liquid evaporates from the leaves and constantly pulls up new water. This suction force of transpiration is limited by gravity and friction in the conduction system. Both of these factors inhibit the growth of the tree. Above 130 meters of closed water column have been interrupted as a result of the formation of air bubbles the tree would occur vascular embolism.

Alaska sale – Russian tsar Alexander II contract

Alaska sale - Location Alaska

Alaska sale – Russian tsar Alexander II contract

Alaska sale – Tsar Alexander II a few years after the defeat of the British Crimean War, he proposed purchase of Alaska (barren, almost uninhabited and non-revenue for the tsar’s treasury), developing the United States. Signing the contract of sale of Alaska for $ 7.2 million was March 30, 1867 on. The Russians also colonized other lands, which today represent the United States: Hawaii, California.

Redwood evergreen – Seqouia sempervirens

Seqouia sempervirens - Redwood National Park, CaliforniaRedwood National ParkSeqouia sempervirens - Redwood National Park

Redwood evergreen – Seqouia sempervirens

Redwood evergreen – Seqouia sempervirens – The highest plant in the world. Growing in Redwood National and State Park, California. Record holders are trees named: “Hyperion”. This huge conifer is 600 years old and 115.85 meters high. To determine the location is a secret to protect the root system tiles from tourists. “Helios” – 114.58 m, “Icarus” – 113.14 m and “Giant stratosphere” – 113.05 m.
In their case, the measurement is precise and constantly monitored.