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Questions tagged [construction]

for questions about claims based on construction.

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7
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2answers
1k views

Is the Great Wall of China visible from space?

Is the Great Wall of China visible from space? This is quoted every now and then in film and television (e.g. The Truman Show), purportedly placing it among a rare class of single object that are ...
18
votes
2answers
5k views

Is micro rebar a better way to reinforce concrete than rebar?

This site claims that the small wires(twisted steel micro rebar) they created are a good replacement to a typical rebar concrete reinforcement if not even better. a reinforcement technology that ...