Why Bridges Move…

From Practical Engineering. …and other musings on thermal movement of large civil works. This video is sponsored by Blue Apron. First 100 people to sign up will get $40 off their first two weeks of Blue Apron orders. Click here: http://cook.ba/2HO67T5 Most people have a certain intuition about thermal expansion, but you may not have…

What is Water Hammer?

From Practical Engineering. First 100 people to sign up will get $30 off their first Blue Apron order here: http://cook.ba/2hkRvlY. This video is sponsored by Blue Apron. Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can cause major damage to large pipelines and industrial…