Plants Join The Twitter Conversation!
Hi! Thanks for the return visit!
Hi! Thanks for the return visit!
Written By Regina Brett of The Plain Dealer, Cleveland, OH
“To celebrate growing older, I once wrote the 45 lessons life taught me. It is the most-requested column I’ve ever written.”
I hope someone at the Michigan Dept. of Transportation is looking into things like this to repair all the roads in Michigan from all those winter potholes. I’d love to buy stock in the company that makes this stuff if it actually works and is an economically viable product.
Flexible Concrete That Can Repair Itself
“Researchers at the University of Michigan have created a concrete material that can heal itself when it cracks, paving the way for safer roads and bridges that are less likely to crumble from earthquakes and overuse. The self-healing concrete works because it can bend. When it’s strained, man microcracks form instead of one large crack that causes it to fail. A handful of drizzly days would be enough to mend a damaged bridge made of the new substance. The dry material exposed by the cracks reacts with rainwater and carbon dioxice in the air to form “scars” of calcium carbonate, a strong compound found naturally in seashells. The new material looks like regular concrete, but is 500 times more resistant to cracking and 40% lighter in weight. The concrete is studded with specially-coated reinforcing fibers that hold it together. Nanoparticles that comprise about 2% of the mixture’s volume partly account for its performance.”
Published Monday, 18 May, 2009 – 18:35 Continue Reading…
“No matter the circumstances, students can rise above any poor hand that life has dealt them, given education, mentoring, and technology.”
The morning was perfect: the temperature was neither too hot or too cold, no bugs, sunshine coming up for a change, blue skies, and the tolling of the wilderness bell to come to Church. I answered the call and the message this morning was one filled with wonder. The choir was rapturous and the brethren enjoyed a communion of nature.
“Play is, of course, the context where children both express and develop abilities across all the domains of development.” Jim Gill
I parked the car on the 5th level of the parking structure. I was sure of it because I hate wandering around looking for the car. It was on the 5th level. I took the elevator down to the walkway, which was on the 3rd floor, between the hotel and parking structure. The car was on the 5th level. Maybe someone stole it. Well, it was a big structure so maybe it wasn’t exactly where I left it. Being an Almost Eagle Scout, I am nothing if not resourceful. I pulled out my keys and pushed the automatic start and listened intently to hear where the car was. I was standing next to the outside wall and sure enough I heard a car start. It couldn’t be though. The sound came from an identical parking structure across the street from the same level I was on. I pushed the remote button that makes my lights flash and the horn honk. I couldn’t see any lights but I heard the horn honk. Push the button–horn honk. Push the button–horn honk. Not a coincidence. I just laughed and headed for the exit.