Aerospace materials to build endless pipeline. Mo Ehsani, Professor Emeritus of Civil Engineering at the University of Arizona, has designed a new, lightweight underground pipe he says could transform the pipeline construction industry.
Instead of conventional concrete or steel, Ehsani's new pipe consists of a central layer of lightweight plastic honeycomb, similar to that used in the aerospace industry, sandwiched between layers of resin-saturated carbon fiber fabric. In combination, these materials are as strong, or stronger, than conventional steel and concrete pipes, which are time-consuming and expensive to manufacture and transport. Concrete and steel pipes are built in short sections to fit on standard 18-wheel trucks, but Ehsani's new pipe can be built onsite as a single section of virtually infinite length, hence the product name InfinitPipe. "There are really two aspects to this invention," Ehsani said.
Earthworms soak up heavy metal. Nature’s Path. You gotta love summer’s abundant fruits and vegetables: Strawberries, juicy tomatoes, fresh carrots, dark leafy spinach, spicy arugula.
If you’re busy harvesting all of this organic goodness from your garden, you’re probably wondering what the best way to keep it fresh and tasty as long as possible. Yes, plastic baggies and cling wrap may be popular containers for storing food, but there are better, less-wasteful, less-plastic options. Alexander Technique with Sarah Chatwin. It’s all go in the garden.
Everything is growing, including the weeds. Here’s how to bring life to your garden without killing yourself. 1. Vary your work. I know how tempting it can be to do a lot of one job in the garden. The Urban Experiment.