when were cement sidewalks invented?

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Answered: In the 1970's a guy from Iowas built a cement boat ...

There have been many concrete boats built, particularly during WWII when steel was scarce. The boats were surprisingly fast, as they weighed only a bit more than steel ships and cost 1/2 less to build. The problem is that concrete has a limited lifespan in salt water. At the end of WWII ...

Answered: Crumbling cement pourch

First use Apoxy Bonding [white liquid, or blue liquid, almost like Elmers Glue. Paint this on, let dry and use a Top and Bond cement, any cement without stones in it.

Answered: Sidewalks used as driveways

So our questioner NOW tells us they specifically wanted info for Bayonne, NJ ! -After giving me an 'Unhelpful' THANKS VERY MUCH ! ! - - I've looked again and found NO TRACE of that in the original question. - -I would have thought anybody with half a brain would have thought of calling up and ...

Answered: Cement

1 part cement, 2 parts gravel, 3 parts sand. Mix it together and add water until looks like wet dough. level the area you wish to cement, put a heavy nylon sheet on the ground and put wood boards as limits (hold them firmly in place with metal sticks). put a wire mesh at about 2cm hight from the ...

Answered: Israeli inventions

Researchers in Israel developed a new device that directly helps the heart pump blood, an innovation with the potential to save lives among those with heart failure. Drip irrigation. ICQ The cell phone was developed in Israel by Motorola. Voice mail technology was developed in Israel ...

Answered: Cement Filled Drain

did you replace the pipe well thats better, used copper pipes insted terra-cotta pipes
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Goldman inventer

Unknown epression, needs further explanation.

What do you think is the greatest invention that benefitted humanity

INSHA ALLAH this is electrical power genration by mr.Faraday

Was the airship invented in 1852

A hot-air balloon was demonstrated by Montgolfier in 1783. In 1784 there was a hand powered propeller attached; that could be called an airship. In 1852 Henri Giffard flew a steam-powered airship. Count Zeppelin in 1900 invented a rigid motorized balloon, which could be steered.