Robots don't need a whole lot to survive, and even thrive, on the surface of Mars (once they get there, anyway). But meeting even the most basic needs of humans will be a huge challenge — we'll need some kind of bioregenerative system to grow food, produce oxygen, clean our water and recycle nutrients.
By Max FischerPosted 05.06.2011 at 4:11 pm 2 Comments
Getting your lawn in shape after the spring thaw can mean many uncomfortable hours of lifting, bending, stretching and sweating. These tools cut down on all that back-breaking labor, leaving you more time to relax and smell the roses.
One look at the wedge-shaped rows of plants and anyone could tell the circular garden was not grown under normal conditions. Plants sown in concentric circles displayed wildly different vitality and viability.
The innermost circle of plants, gathered around a central pole, were dead; slightly farther away, the plants were stunted and tumor-ridden; and past that, the plants may have looked right, but possessed strange new mutations.
You say tomayto, I say tomahto.
You say Miracle-Gro, I say ... pee.
Apparently, human urine works remarkably well as a fertilizer for tomatoes, according to a new study out of Finland.
Plants fertilized with a mixture of stored human urine and wood ash produced 4.2 times more fruit than plants without the pee, the study found. The urine-fertilized tomatoes had more beta-carotene than unfertilized ones, and much more protein than traditionally fertilized plants.