An escalator is a moving staircase with steps that go up or down. This book discusses how an escalator if based off a conveyor system, moving objects up and down using gears and chains that are connected to the steps, flattening them out at the top and bottom so people can easily get on.
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An escalator is a moving staircase with steps that go up or down. This book discusses how an escalator if based off a conveyor system, moving objects up and down using gears and chains that are connected to the steps, flattening them out at the top and bottom so people can easily get on.
Read Less
Add this copy of Escalators to cart. $6.43, fair condition, Sold by Goodwill Books rated 5.0 out of 5 stars, ships from Hillsboro, OR, UNITED STATES, published 2014 by Rourke Educational Media.
Add this copy of Escalators to cart. $40.52, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2014 by Rourke Educational Media.
Add this copy of Escalators (How It Works) to cart. $67.40, good condition, Sold by Shakespeare Book House rated 4.0 out of 5 stars, ships from Milwaukee, WI, UNITED STATES, published 2014 by Rourke Educational Media.
Add this copy of Escalators to cart. $68.37, good condition, Sold by ThriftBooks-Atlanta rated 4.0 out of 5 stars, ships from Austell, GA, UNITED STATES, published 2014 by Rourke Educational Media.
Add this copy of Escalators to cart. $71.72, new condition, Sold by Just one more Chapter rated 4.0 out of 5 stars, ships from Miramar, FL, UNITED STATES, published 2014 by Rourke Educational Media.
Add this copy of Escalators (How It Works) to cart. $174.28, new condition, Sold by Just one more Chapter rated 4.0 out of 5 stars, ships from Miramar, FL, UNITED STATES, published 2014 by Rourke Educational Media.
