Home | The Quantum Universe | Milo Wolff Hydroponics NASA researcher checking hydroponic onions with Bibb lettuce to his left and radishes to the right Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, biochar, mineral wool, expanded clay pebbles or coconut husk. Researchers discovered in the 18th century that plants absorb essential mineral nutrients as inorganic ions in water. In natural conditions, soil acts as a mineral nutrient reservoir but the soil itself is not essential to plant growth. When the mineral nutrients in the soil dissolve in water, plant roots are able to absorb them. History[edit] Reports of Gericke's work and his claims that hydroponics would revolutionize plant agriculture prompted a huge number of requests for further information. Origin[edit] Soilless culture[edit] Advantages and disadvantages[edit]
Home Page - The information on thie website can change the world Soil-Free Hydroponic Gardening | High-Density, Small-Space Yields | ProgressiveGardening.org Soil-Free Hydroponic Gardening Provides Maximum Yields In Minimum Spaces Since plants grown in a soil-free environment are essentially spoon fed and don't have to compete with others for nutrients or water, a significantly larger number of plants can be produced in a given space than if grown by traditional field methods in soil. Trials conducted by Cornell University's Controlled Environment Agriculture (CEA) Commercial-Scale Lettuce Production Prototype has achieved soil-free lettuce yields equivalent to 470 tons (almost a million pounds) per acre. By comparison, typical production in California using traditional field agriculture is currently about 20 tons per acre. For the homeowner, a patio, balcony, deck, or corner of the backyard can easily be turned into a very productive soil-free garden, using only a fraction of the space necessary for a traditional soil garden, while using only a fraction of the water. Next section: Anyone Can Grow With Accessible Hydroponics
Anwar al-Aulaqi Added To CIA Target List: US Citizen Is First Am WASHINGTON — The Obama administration has authorized the killing of a radical Muslim cleric, Anwar al-Awlaki, an American citizen believed to be hiding in Yemen and thought to have shifted from encouraging attacks on the U.S. to participating in them, according to published reports. Al-Awlaki has emerged as a prominent al-Qaida recruiter and has been tied by U.S. intelligence to the 9/11 hijackers, along with Umar Farouk Abdulmutallab, the Nigerian accused of trying to blow up a Detroit-bound airliner on Christmas Day, as well as Maj. Nidal Malik Hasan, the Army psychiatrist accused of killing 13 people in November at Fort Hood, Texas. American counterterrorism officials say they believe al-Awlaki has become a recruiter for al-Qaida in the Arabian Peninsula terrorist network, feeding prospects into plots aimed at the U.S. and at Americans abroad, the officials told The New York Times in a report posted online late Tuesday.
Times Squre Bomber 4/30 10 An FBI team arrived in Pakistan on Friday as the international probe into the failed Times Square bombing heated up and investigators focused on whether foreign terrorist money helped finance the operation, U.S. and Pakistani officials said. The FBI investigators landed in Islamabad, where the FBI has a legal attache office that works with Pakistani law enforcement and intelligence officers, Pakistani officials said. Pakistani cooperation is considered crucial in nailing down the radical ties of Faisal Shahzad, the U.S. citizen charged in the attempted bombing. Inside the United States, investigators were interviewing people who might have ties to Shahzad, but "no one is subject to imminent arrest," said a senior U.S. law enforcement official, who spoke on the condition of anonymity because the probe is still unfolding. Here and abroad, a key focus was the money trail. Brulliard reported from Pakistan.
Oil Spill [GALLERY id=3339 cat=news] BP crews began slowly lowering a 114-tonne steel and concrete dome over a blown-out well on the sea floor of the Gulf of Mexico in the hopes of containing the oil gushing from it daily. A crane lifted the box from one boat and crews from another boat began to drop it down to the bottom, a process expected to take hours. Then workers will have to install a riser pipe, which will funnel the leaking fuel from the cofferdam to a barge on the surface. It will likely be Sunday or Monday before the cofferdam is fully operational and engineers know if it's working. A worker in Port Fourchon, La., watches construction of a 114-tonne cofferdam that BP will use to contain oil gushing from an undersea well in the Gulf of Mexico. The containment dome, or cofferdam, arrived Thursday morning on a ship in calm waters at the site of the leak about 80 kilometres off the coast of Louisiana. The U.S. 'Never been done before': BP
Tibetan Stone Houses - China culture The Tibetan people are mainly scattered across the regions of Tibet, Qinghai, Gansu and west of Sichuan. In order to adapt to the weather conditions and environment in the Qinghai-Tibet plateau, the Tibetan traditionally built fortress-like stone houses. A Tibetan stone house usually comprises three to four levels. The ground level is where livestock, fodder and other items are stored. On the second level are the bedrooms and kitchen. The third level is where the prayer room is situated. The colors of the Tibetan stone houses are simple, yet well coordinated, and usually comprise primary colors such as yellow, cream, beige and maroon-set against the brightly colored walls and roofs.
VRadio Moving On Up a Little Higher Aaron Saxton, Scientology Enforcer, Stops By For a Chat - New Yo Yesterday, we were visited by Aaron Saxton, who is in town visiting friends. Saxton is a former Scientologist, and his Orwellian tales of being one of the Sea Org's ruthless enforcers during the 1990s are part of a national scandal that has become big news in Australia. In November, an Australian senator with the unlikely name of Nick Xenophon stunned his colleagues and the nation with a surprising speech filled with allegations of abuse by Scientology and calling for a federal investigation of the "church" there. For his screed against Scientology, Xenophon was relying on the testimonials of numerous former Scientologists, but many of the worst abuses he cited came from the online writings of Saxton, who had been posting harrowing tales he had witnessed of families split apart, of Scientologists starved as punishment for nonsensical reasons, of forced abortions for Sea Org members, and of severe retaliations against anyone who dared leave the organization. Scientology founder L.
Should We Stick Cows on Treadmills to Generate Electricity? | Fa Energy-generating treadmills for humans? Been there, done that. William Taylor, a farmer in Northern Ireland, has decided to put idle cows on treadmills to produce power for his farm, according to Popular Science. The inclined belt causes cows to slide off unless they continue to move forward. It's not as crazy as it sounds. We're not entirely on board with Taylor's scheme.