Will Closed Ecological Systems Save the Planet?
In a closed ecological system, the maintenance of life happens through complete re-use of available material by means of cycles. Exhaled carbon dioxide and other waste matter is renewed chemically or by photosynthesis into oxygen, water and food.
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Featured Product
igus® - Free heavy-duty plastic bearings sample box
The iglide® heavy-duty sample box provides a selection of five unique iglide bearings, each suitable for use in heavy-duty equipment due to their self-lubricating, dirt-resistant properties. Each bearing material boasts unique benefits and is best suited for different application conditions, though each can withstand surface pressures of at least 11,603 psi at 68°F.
